Dry Eyes After LASIK: Causes, Duration, Treatment and When to Worry

Author: Dr Val Phua
Estimated reading time: 18 minutes

Dry eye is one of the most common symptoms experienced after LASIK.

Patients may notice:

Grittiness or a sandy sensation
Burning or stinging
Fluctuating or intermittently blurred vision
Eye fatigue
Light sensitivity
Redness
Watering
Discomfort in air-conditioning
Difficulty using screens for long periods
Contact lens intolerance
Vision that becomes clearer immediately after blinking

For most patients, these symptoms are temporary and improve as the corneal surface, tear film and sensory nerves recover.

However, dry eye after LASIK should not be dismissed as an unavoidable inconvenience. Significant dryness can interfere with visual recovery, reduce quality of vision and, in a smaller group of patients, persist for many months or become a long-term ocular-surface problem.

The FDA-supported Patient-Reported Outcomes With LASIK studies found that up to 28% of participants who reported no dry-eye symptoms before LASIK reported some dry-eye symptoms three months after surgery. Overall satisfaction nevertheless remained high, with more than 95% of participants satisfied with their vision.

The central message is:

Temporary dryness is common after LASIK. Persistent severe dryness is less common, but pre-existing ocular-surface disease, deeper treatment and abnormal corneal nerve recovery can increase the risk.

Why Does LASIK Cause Dry Eyes?

The tear film is regulated by a connected system involving:

The corneal nerves
Lacrimal glands
Eyelid blinking
Meibomian oil glands
Conjunctival goblet cells
The corneal and conjunctival epithelium
Sensory pathways between the eye and brain

This is sometimes called the lacrimal functional unit.

When the corneal surface senses dryness or irritation, sensory nerves normally send signals that stimulate:

Tear secretion
Blinking
Meibomian oil release
Ocular-surface protection

LASIK temporarily disrupts this feedback system.

Corneal Nerves Are Cut During Flap Creation

The front of the cornea contains a dense network of sensory nerves.

During LASIK:

A corneal flap is created.
Many nerves entering through the flap area are cut.
The excimer laser removes additional stromal tissue beneath the flap.
Corneal sensation is temporarily reduced.

Reduced corneal sensation means that the eye may not signal the lacrimal glands and eyelids as effectively, resulting in reduced tear production and less effective blinking.

Studies examining corneal nerves after LASIK have shown that reduced nerve density and altered nerve structure are associated with postoperative dry-eye symptoms. Recovery occurs gradually, but nerve architecture may remain measurably different from that of an unoperated cornea for years.

Tear Production May Decrease

Reduced sensory input from the cornea can reduce reflex tear secretion.

Prospective studies have documented postoperative changes in:

Schirmer tear production
Tear-film break-up time
Basal tear secretion
Corneal sensation
Ocular-surface staining

Patients with lower tear production before surgery appear more likely to experience troublesome dryness afterwards.

Blinking May Become Less Effective

Corneal sensation contributes to normal spontaneous blinking.

After LASIK, reduced sensation may lead to:

Less frequent blinking
Incomplete blinking
Poorer tear distribution
More tear evaporation
Less effective meibomian gland expression

This becomes particularly noticeable during prolonged phone or computer use, when blinking is already reduced.

The Meibomian Oil Layer May Be Inadequate

The meibomian glands produce the oily outer layer of the tear film.

This layer slows tear evaporation.

Many patients seeking LASIK already have undiagnosed:

Meibomian gland dysfunction
Thickened meibomian secretions
Blocked gland openings
Eyelid-margin inflammation
Incomplete blinking

LASIK may not directly create these underlying gland abnormalities, but postoperative nerve disruption, reduced blinking and increased screen use can make them more symptomatic.

This produces evaporative dry eye, in which tears may be present but evaporate too quickly.

Ocular-Surface Inflammation Can Develop

An unstable tear film increases:

Tear concentration
Epithelial stress
Surface inflammation
Corneal staining
Nerve irritation

Inflammation can further reduce tear production and destabilise the ocular surface, creating a self-perpetuating cycle.

This is why some patients require more than artificial tears alone.

Eyedrop Preservatives May Aggravate the Surface

Antibiotic and steroid drops are normally required during early LASIK recovery.

Preserved medication used frequently may temporarily irritate a sensitive ocular surface.

For patients requiring frequent lubrication, preservative-free artificial tears are often preferred to reduce cumulative preservative exposure.

What Does Dry Eye After LASIK Feel Like?

Symptoms vary considerably between patients.

Common symptoms include:

Dryness
Grittiness
Burning
Stinging
A scratchy sensation
Intermittent blur
Eye fatigue
Redness
Light sensitivity
Wind sensitivity
Discomfort under fans or air-conditioning
Difficulty keeping the eyes open comfortably
Excessive tearing
Stringy mucus
Contact lens intolerance
Pain

FDA patient information lists scratchiness, burning, stinging, excessive tearing, discharge, pain and blurred vision among possible dry-eye symptoms after LASIK.

Why Can Dry Eyes Cause Watery Eyes?

Watering does not necessarily mean that the eye is adequately lubricated.

When the corneal surface becomes irritated, the lacrimal gland may produce a sudden rush of reflex tears.

These tears are often:

Watery
Short-lived
Poorly retained
Inadequate in oil and mucin components

They may spill over the eyelids without providing a stable optical surface.

A patient can therefore have watery eyes and dry-eye disease at the same time.

Why Does Vision Fluctuate After LASIK?

The tear film is the first optical surface through which light enters the eye.

A smooth, stable tear film helps create clear vision.

When the tear film breaks up:

The corneal optical surface becomes irregular
Light scatters
Letters may appear blurred or shadowed
Contrast decreases
Vision may fluctuate between blinks

A typical clue is:

Vision becomes clearer immediately after blinking or applying lubricant, then gradually becomes blurry again.

This pattern is more suggestive of tear-film instability than true LASIK regression.

Why Is Vision Often Worse With Screens?

Screen concentration reduces both the frequency and completeness of blinking.

Dry-eye symptoms may therefore worsen during:

Computer work
Phone use
Gaming
Reading
Detailed near work
Long video calls

Patients may notice:

Increasing blur later in the day
Difficulty sustaining focus
Burning
Heavy eyelids
Headache
A need to blink repeatedly to clear the vision

The problem is often amplified by air-conditioning, fans and low environmental humidity.

How Common Is Dry Eye After LASIK?

Reported rates differ considerably because studies use different:

Symptom questionnaires
Clinical definitions
Follow-up periods
Surgical techniques
Patient populations
Dry-eye tests

Transient ocular-surface changes are common.

The FDA PROWL studies found that up to 28% of patients without preoperative dry-eye symptoms developed symptoms by three months.

A prospective study found that dry eye developed commonly after LASIK even among patients without a previous dry-eye history, with higher preoperative myopia and deeper laser treatment associated with increased risk.

However, persistent clinically significant dry eye is much less common than short-term symptoms. In a prospective study comparing PRK and LASIK, chronic dry eye was uncommon, and preoperative tear-film abnormalities helped identify patients at greater risk.

Long-term estimates should be interpreted carefully. Studies that actively recruit patients with persistent complaints or examine selected post-LASIK populations may report much higher symptom rates than prospective studies following an unselected surgical group.

How Long Do Dry Eyes Last After LASIK?

There is no single recovery time.

A practical timeline is:

The First Few Days

Common experiences include:

Burning
Watering
Grittiness
Mild light sensitivity
Fluctuating vision

These symptoms are partly related to the immediate surgical surface disturbance and usually improve quickly.

The First Two to Four Weeks

Dryness may become more noticeable during:

Screen use
Driving
Air-conditioned work
Late evenings

Frequent lubricating drops may be required.

One to Three Months

Corneal sensation remains reduced in many patients.

Tear production, blinking and surface stability gradually improve.

Dry-eye symptoms may still fluctuate, particularly in patients with:

Higher myopia
Deep ablation
Pre-existing meibomian gland dysfunction
Low preoperative tear production

Three to Six Months

Many patients notice significant improvement during this period.

Corneal sensory recovery and tear-film regulation continue, although recovery is not identical in every eye.

Prospective studies have shown that symptoms and corneal sensory function commonly improve over the first six months, although structural nerve regeneration may continue beyond this period.

Six to Twelve Months

Most uncomplicated cases should be substantially improved.

Symptoms persisting beyond six to twelve months require a more detailed assessment for:

Meibomian gland dysfunction
Aqueous tear deficiency
Ocular-surface inflammation
Exposure
Reduced corneal sensation
Neuropathic corneal pain
Another underlying eye or systemic condition

Can Dry Eye Become Permanent After LASIK?

Persistent dry-eye symptoms can occur, but not every symptom continuing after LASIK is caused solely by irreversible surgical damage.

Long-term problems may reflect a combination of:

Pre-existing dry-eye disease
Meibomian gland dysfunction
Reduced tear production
Incomplete blinking
Ageing
Hormonal change
Medication
Autoimmune disease
Screen exposure
Abnormal nerve recovery
Neuropathic pain

A prospective study found that chronic dry eye after LASIK was uncommon, while preoperative tear-film and ocular-surface abnormalities increased the likelihood of persistent disease.

The phrase “permanent dry eye” should therefore be used carefully.

Some patients have chronic treatable ocular-surface disease. Others have persistent nerve-related symptoms even when conventional dry-eye tests appear relatively normal.

Who Is More Likely to Develop Dry Eye After LASIK?

Patients With Dry Eye Before Surgery

This is one of the most important risk factors.

A patient may have dry eye even without severe symptoms.

Preoperative signs may include:

Short tear break-up time
Corneal staining
Reduced tear production
Blocked meibomian glands
Eyelid-margin inflammation
Fluctuating refraction
Contact lens intolerance

Existing dry-eye disease should be treated before final LASIK measurements and surgery.

Patients With Meibomian Gland Dysfunction

Blocked or poorly functioning oil glands allow tears to evaporate rapidly.

Possible clues include:

Eyelid-margin redness
Foamy tears
Thickened gland secretions
Recurrent styes
Heavy eyelids
Symptoms worse with screens
Temporary relief after warm compresses

Preoperative treatment may improve both comfort and measurement accuracy.

Patients With Higher Myopia or Deeper Ablation

Higher myopic corrections generally require deeper tissue removal.

A prospective study found that the risk of post-LASIK dry eye correlated with the degree of preoperative myopia and depth of laser treatment.

This may reflect greater stromal nerve disruption and a larger biological treatment effect.

Patients With Low Tear Production

Patients with reduced Schirmer measurements before surgery may have less reserve when reflex tearing decreases after LASIK.

One study found that patients with preoperative tear-flow abnormalities were particularly likely to develop postoperative symptoms.

Contact Lens-Intolerant Patients

Contact lens intolerance is sometimes a reason patients seek LASIK.

However, intolerance may result from:

Dry eye
Allergy
Meibomian gland dysfunction
Corneal inflammation
Reduced tear production

Removing contact lenses does not automatically remove the underlying ocular-surface problem.

The reason for intolerance should be identified before surgery.

Patients With Autoimmune Disease

Conditions such as Sjögren syndrome and selected connective-tissue diseases may cause severe aqueous tear deficiency and impaired surface healing.

Active autoimmune disease or significant autoimmune-related ocular-surface disease may make LASIK unsuitable.

Patients Taking Drying Medications

Potentially relevant medicines include some:

Antihistamines
Antidepressants
Acne treatments
Diuretics
Anticholinergic medicines
Hormonal therapies

Medication should not be stopped without discussion with the prescribing doctor.

Patients With Incomplete Eyelid Closure

Poor eyelid closure may expose the cornea during sleep.

Possible causes include:

Facial nerve weakness
Thyroid eye disease
Prominent eyes
Previous eyelid surgery
Eyelid laxity
Sleeping with the eyes partly open

LASIK may worsen symptoms if the underlying exposure is not recognised.

Patients With Heavy Screen Exposure

Frequent screen use does not necessarily make LASIK unsafe, but it can amplify postoperative symptoms through:

Reduced blink rate
Incomplete blinking
Increased tear evaporation
Prolonged air-conditioned exposure

Women and Hormonal Factors

Dry-eye disease is more common in certain hormonal settings, including pregnancy, breastfeeding and menopause.

LASIK is generally postponed during pregnancy and breastfeeding because both refraction and ocular-surface conditions may be unstable.

How Is Dry Eye Assessed Before LASIK?

A preoperative dry-eye evaluation should involve more than asking whether the patient feels dry.

Symptom History

The doctor may ask about:

Burning or grittiness
Fluctuating vision
Contact lens tolerance
Screen-related symptoms
Watering
Light sensitivity
Morning or evening variation
Previous styes
Autoimmune disease
Medication

Tear-Film Break-Up Time

Fluorescein dye or a non-invasive imaging method measures how quickly the tear film becomes unstable after blinking.

A short break-up time suggests tear-film instability.

Corneal and Conjunctival Staining

Dyes help reveal damaged or stressed epithelial cells.

Staining may indicate:

Dryness
Exposure
Inflammation
Contact lens-related damage
Poor tear-film distribution

Tear Production

A Schirmer test may be used to estimate aqueous tear production.

It is only one part of the assessment and should not be interpreted in isolation.

Meibomian Gland Examination

The eyelid margins and gland secretions are examined for:

Blockage
Thickened oil
Gland dropout
Telangiectatic vessels
Inflammation
Poor expression

Eyelid Closure and Blinking

The doctor assesses:

Blink completeness
Eyelid position
Nocturnal exposure
Facial nerve function
Eyelid laxity

Corneal Sensation

Reduced sensation may contribute to:

Poor reflex tearing
Reduced blinking
Neurotrophic epithelial problems

Patients with unexpectedly low sensation require additional caution.

Why Must Dry Eye Be Treated Before LASIK?

An unstable tear film can interfere with:

Refraction
Corneal topography
Corneal tomography
Wavefront measurements
Astigmatism assessment
Treatment planning

Different measurements may produce different prescriptions when the ocular surface is irregular.

Treating the surface first can therefore improve:

Surgical accuracy
Visual quality
Comfort
Healing
Patient satisfaction

LASIK should not be treated as the cure for contact lens-related dryness without first evaluating the underlying ocular surface.

Can Severe Dry Eye Make Someone Unsuitable for LASIK?

Yes.

Current FDA documentation warns that LASIK may increase dryness and that severe dryness can delay flap healing or interfere with the ocular surface.

LASIK may be inappropriate when there is:

Severe aqueous tear deficiency
Significant Sjögren-related disease
Persistent corneal staining despite treatment
Neurotrophic keratopathy
Exposure keratopathy
Severe meibomian gland disease that cannot be controlled
Severe ocular pain
Unstable refraction and corneal measurements
Poor epithelial healing

Alternatives may include:

SMILE
PRK or TransPRK
ICL
Spectacles
Continued contact lens use with surface treatment

However, these alternatives do not automatically eliminate dryness and may also be unsuitable in severe ocular-surface disease.

Is SMILE Better Than LASIK for Dry Eyes?

SMILE generally preserves more of the anterior corneal nerve network because it uses a small incision rather than a broad LASIK flap.

Comparative studies have found:

Better early corneal sensation after SMILE
Less early ocular-surface disturbance in many patients
Lower dry-eye severity in some follow-up periods

A prospective comparison found more persistent mild-to-moderate dry eye after LASIK than SMILE at six months.

Long-term nerve imaging has also shown greater nerve preservation after SMILE, although neither LASIK nor SMILE eyes necessarily return completely to unoperated nerve architecture.

SMILE does not prevent dry eye.

It still:

Cuts corneal nerves
Creates a stromal interface
Alters corneal sensation
Can produce temporary tear-film instability

Severe dry eye may make both procedures unsuitable.

Is PRK Better Than LASIK for Dry Eyes?

PRK avoids a LASIK flap but removes the central epithelium and superficial nerve endings.

PRK may cause:

Early surface irritation
Temporary reduced corneal sensation
Tear-film instability
Longer epithelial healing
Frequent postoperative eyedrop use

PRK can therefore cause dry-eye symptoms despite avoiding flap-related nerve transection.

Comparative studies do not support a simple rule that PRK always causes less dryness. The choice depends on the corneal structure, ocular surface and other procedure-specific risks.

How Are Dry Eyes After LASIK Treated?

Treatment should be matched to the underlying mechanism.

A patient with low aqueous tear production may require a different approach from a patient with blocked meibomian glands or neuropathic pain.

Preservative-Free Artificial Tears

These are often the first treatment.

They may improve:

Grittiness
Burning
Fluctuating blur
Screen tolerance
Surface staining

Patients requiring frequent drops are often advised to use preservative-free preparations.

Different formulations include:

Watery lubricants
Hyaluronic acid-based drops
Lipid-containing drops
Gels
Night-time ointments

The most suitable preparation depends on whether the problem is predominantly aqueous-deficient or evaporative.

Gel or Ointment at Night

Thicker lubricants may help patients with:

Morning dryness
Night-time exposure
Incomplete eyelid closure
Symptoms on waking

They can blur vision temporarily and are therefore commonly used before sleep.

Screen and Environmental Adjustments

Helpful measures include:

Taking regular visual breaks
Blinking deliberately
Ensuring complete blinks
Positioning screens slightly below eye level
Avoiding direct fans
Reducing strong air-conditioning exposure
Using a humidifier in very dry environments
Wearing glasses outdoors in wind
Maintaining sensible hydration

These measures support treatment but may not be sufficient for moderate or severe disease.

Warm Compresses and Eyelid Hygiene

When meibomian gland dysfunction is present, treatment may include:

Warm compresses
Eyelid massage
Eyelid-margin cleaning
Treatment of blepharitis or Demodex
Prescribed medication

The compress must be warm enough to soften gland secretions but not hot enough to injure the skin.

Meibomian Gland Procedures

Selected patients may benefit from:

Thermal pulsation
Controlled eyelid heating
Gland expression
Intense pulsed light
Other in-clinic gland treatments

A study evaluating prophylactic thermal pulsation before refractive surgery found improvements in selected ocular-surface signs and tear-film findings. A separate clinical evaluation found improvement in symptoms after thermal pulsation in post-LASIK patients with meibomian gland dysfunction.

These procedures are most helpful when evaporative dry eye and gland obstruction are genuinely present. They do not replace treatment for low aqueous tear production or neuropathic pain.

Anti-inflammatory Eyedrops

Dry-eye disease often involves ocular-surface inflammation.

Depending on the findings, the doctor may prescribe:

A short supervised course of topical steroid
Ciclosporin
Another anti-inflammatory dry-eye medication

Ciclosporin is not an immediate lubricant. It is intended to reduce inflammatory activity and may require sustained treatment before maximum benefit is seen.

Clinical studies in LASIK patients with dry eye have found improved ocular-surface stability or refractive outcomes with topical ciclosporin compared with conventional treatment alone.

Steroid drops should not be used indefinitely without supervision because they may cause:

Raised eye pressure
Glaucoma
Cataract
Increased infection risk

Punctal Plugs

Tears normally drain through small openings called puncta near the inner eyelids.

Temporary or longer-lasting plugs can reduce tear drainage and keep tears on the eye for longer.

Studies in post-LASIK patients have found that punctal plugs can improve:

Symptoms
Tear function
Functional visual acuity
Dependence on artificial tears
Patient satisfaction

Possible limitations include:

Watering
Plug displacement
Irritation
Infection
Inflammation

Active eyelid or ocular-surface inflammation is usually treated before permanent tear retention is considered.

Autologous Serum Eyedrops

Autologous serum drops are produced from the patient’s own blood.

They contain biological components found in natural tears and may be considered for:

Severe surface staining
Persistent epithelial damage
Neurotrophic disease
Refractory post-LASIK dry eye
Severe symptoms not responding to ordinary lubricants

A clinical study of post-LASIK dry eye found improvement in tear-film break-up time and ocular-surface staining with autologous serum drops.

They require specialised preparation, storage and handling.

Therapeutic or Scleral Contact Lenses

Ordinary soft lenses may worsen dryness in some patients.

However, specialised lenses may occasionally help severe cases.

Bandage Contact Lens

A bandage lens may be used temporarily for:

Epithelial defects
Severe surface irritation
Protection during healing

It requires close monitoring because contact lenses can increase infection risk.

Scleral Lens

A scleral lens vaults over the cornea and holds a fluid reservoir against the surface.

It may help patients with:

Severe ocular-surface disease
Irregular astigmatism
Corneal neuralgia
Exposure
Persistent epithelial problems

Scleral lenses require specialist fitting and careful hygiene.

Omega-3 Supplements

Some LASIK-specific studies have reported improvements in tear secretion with omega-3 supplementation.

However, broader randomised dry-eye trials have produced mixed results, and supplements should not be presented as a guaranteed treatment.

Patients taking anticoagulants, those with bleeding disorders or those considering high-dose supplements should discuss this with their doctor.

Should You Drink More Water?

Dehydration can worsen general dryness, but drinking excessive water does not directly repair LASIK-related nerve disruption or meibomian gland dysfunction.

Sensible hydration is supportive rather than a stand-alone treatment.

Can Sleeping With a Fan Cause Problems?

Direct airflow increases tear evaporation.

A fan or air-conditioner blowing towards the face may worsen:

Morning dryness
Burning
Nocturnal exposure
Fluctuating vision

Redirecting airflow or using eye protection at night may help selected patients.

What Is Neurotrophic Keratopathy?

Corneal nerves do more than provide sensation.

They also support epithelial health and healing.

When corneal sensation is significantly reduced, the cornea may develop:

Persistent epithelial defects
Poor healing
Reduced awareness of injury
Corneal ulceration
Infection
Scarring

A patient with neurotrophic disease may have surprisingly few symptoms despite significant surface damage.

This differs from neuropathic pain, in which symptoms may be severe despite relatively mild clinical signs.

What Is Neuropathic Corneal Pain After LASIK?

A small group of patients develops persistent burning, aching, stabbing pain or severe light sensitivity that appears disproportionate to visible dry-eye findings.

Possible features include:

Burning pain despite little staining
Pain triggered by wind or air-conditioning
Severe light sensitivity
Pain after minimal touch
Symptoms that continue despite frequent lubrication
Pain extending around the eyes or face
Associated headache or migraine features
A marked difference between symptoms and clinical signs

A case series described persistent symptoms after LASIK that were better classified as corneal neuralgia than ordinary aqueous-deficient dry eye.

Neuropathic pain may involve:

Abnormal corneal nerve regeneration
Peripheral nerve sensitisation
Central nervous system sensitisation
A combination of surface disease and altered pain processing

The symptoms are real even when the corneal surface appears relatively normal.

How Is Neuropathic Corneal Pain Diagnosed?

There is no single definitive clinic test.

Assessment may include:

Detailed symptom history
Corneal staining
Tear-film testing
Corneal sensation
Eyelid and meibomian gland evaluation
Review of pain triggers
Response to topical anaesthetic
In-vivo confocal microscopy in selected cases
Screening for migraine or other pain disorders

The aim is to distinguish:

Active ocular-surface disease
Neurotrophic disease
Peripheral neuropathic pain
Central pain sensitisation
Mixed disease

How Is Neuropathic Pain Treated?

Management is individualised and may require:

Aggressive treatment of any surface inflammation
Preservative-free lubrication
Autologous serum
Scleral lenses
Anti-inflammatory eyedrops
Systemic nerve-pain medication
Pain specialist or neurologist involvement
Migraine management
Psychological support for chronic-pain coping

Treatment is often more complex than simply adding another artificial tear.

Why Can Symptoms and Test Results Disagree?

Dry-eye symptoms and clinical signs do not always correlate closely.

Possible patterns include:

Severe Signs but Few Symptoms

This may occur with:

Reduced corneal sensation
Neurotrophic disease
Diabetes-related neuropathy

Severe Symptoms but Few Signs

This may occur with:

Early dry eye
Intermittent tear-film instability
Neuropathic corneal pain
Central sensitisation

A normal Schirmer test does not prove that the patient has no ocular-surface or nerve-related problem.

Can LASIK Dry Eye Cause Permanent Vision Loss?

Ordinary mild dry eye usually causes fluctuating rather than permanent vision loss.

Severe uncontrolled ocular-surface disease can, however, lead to:

Persistent epithelial damage
Infection
Corneal scarring
Irregular astigmatism
Reduced best-corrected vision

Prompt evaluation is important when pain, redness or blur worsens instead of improving.

Can Dry Eye Cause LASIK Regression?

Dry eye does not directly regrow the laser-removed corneal tissue.

However, it can:

Produce variable refraction
Cause irregular topography
Mimic recurrent myopia or astigmatism
Reduce visual quality
Lead to an inaccurate enhancement plan

The ocular surface should be stabilised before deciding that LASIK has regressed.

Should an Enhancement Be Done While the Eyes Are Dry?

Generally, no.

An enhancement should be postponed until:

The tear film is stable
Refraction is repeatable
Corneal maps are reliable
Surface staining is controlled
The residual prescription is confirmed
Symptoms are shown to arise from refractive error rather than dryness

Additional laser treatment can disrupt more corneal nerves and may worsen the ocular surface.

Can Dry Eyes Be Prevented Before LASIK?

Not every postoperative symptom can be prevented, but risk can be reduced.

Treat Pre-existing Dry Eye

This may involve:

Lubricants
Eyelid hygiene
Meibomian gland treatment
Anti-inflammatory medication
Allergy treatment
Temporary punctal plugs
Environmental changes

Stop Contact Lenses Before Measurements

Contact lenses can affect:

Corneal shape
Tear-film quality
Eyelid glands
Surface staining

Measurements should be repeated after the surface and corneal shape have stabilised.

Identify High-Risk Patients

Important factors include:

Reduced tear production
Meibomian gland dysfunction
High myopia
Deeper planned ablation
Autoimmune disease
Exposure
Severe contact lens intolerance
Significant pain symptoms

Consider Another Procedure

SMILE may reduce early dry-eye disturbance in suitable myopic patients.

PRK or ICL may be considered for other reasons, but neither is a guaranteed solution for severe ocular-surface disease.

Use Realistic Counselling

Patients should understand that:

Some dryness is expected
Drops may be needed frequently
Vision may fluctuate
Surface recovery may take months
Persistent symptoms require treatment

What Should You Avoid During Recovery?

Patients should generally avoid:

Eye rubbing
Smoke
Dust
Strong direct airflow
Using unapproved eyedrops
Allowing bottle tips to touch the eye
Prolonged uninterrupted screen use
Stopping medication independently
Wearing contact lenses without approval
Ignoring worsening symptoms

When Should You Contact the Clinic?

Arrange an assessment when:

Dryness is not gradually improving
Lubricants are needed extremely frequently
Vision remains highly variable
Symptoms interfere with sleep or work
One eye is substantially worse
Contact lens intolerance persists
Significant light sensitivity develops
There is persistent pain despite a relatively normal surface

When Is Urgent Review Needed?

Seek urgent assessment for:

Severe or increasing pain
Rapidly worsening vision
Increasing redness
Significant discharge
A white or grey corneal spot
Marked light sensitivity
A persistent epithelial defect
Trauma to the operated eye
Sudden distortion
New flashes or many floaters
A curtain-like shadow

These symptoms may indicate infection, flap complications, inflammation, retinal disease or another condition rather than uncomplicated dry eye.

Frequently Asked Questions About Dry Eyes After LASIK

Are Dry Eyes Normal After LASIK?

Temporary dryness, grittiness and fluctuating vision are common during early recovery.

Symptoms should generally improve with time and treatment.

Does Everyone Get Dry Eyes?

Not everyone experiences noticeable symptoms, but measurable tear-film and corneal-sensation changes are common after surgery.

How Long Will Dry Eyes Last?

Many patients improve over several weeks to months.

Recovery may take six months or longer in patients with pre-existing ocular-surface disease or slower nerve recovery.

Can Dry Eye Last Forever?

Persistent symptoms can occur, but this is less common than temporary dryness.

Long-term symptoms require evaluation for meibomian gland disease, aqueous deficiency, exposure and neuropathic pain.

Why Are My Eyes Watering?

Reflex tearing can occur when the dry corneal surface becomes irritated.

Watery tears may not provide stable lubrication.

Why Does My Vision Clear After Blinking?

Blinking briefly restores a smooth tear film.

This strongly suggests that tear-film instability is contributing to the blur.

Why Is My Vision Worse at Night?

Dryness, larger pupils, residual prescription and optical aberrations may all be more noticeable in dim lighting.

Why Is One Eye Drier?

The two eyes may differ in:

Tear production
Meibomian gland function
Flap dimensions
Ablation depth
Eyelid closure
Corneal nerve recovery

A significant asymmetry should be examined.

Can Artificial Tears Be Used Too Often?

Preservative-free artificial tears can generally be used frequently.

Preserved drops used very often may irritate the surface in some patients.

Which Artificial Tear Is Best?

The best drop depends on whether the condition is predominantly:

Aqueous-deficient
Evaporative
Inflammatory
Exposure-related
Mixed

A lipid-containing drop may suit evaporative disease, while a gel may provide longer-lasting relief for aqueous deficiency.

Do Warm Compresses Help?

They may help when blocked meibomian glands are contributing to tear evaporation.

They are less useful when the main problem is severe aqueous tear deficiency or neuropathic pain.

Do Punctal Plugs Help?

They can help selected patients by reducing tear drainage.

They are not ideal for every patient and may worsen watering or retain inflammatory tears when active surface inflammation is uncontrolled.

Can Ciclosporin Help?

It may help inflammatory dry-eye disease and may be prescribed when lubrication alone is insufficient.

It usually requires sustained use rather than providing immediate relief.

Do Steroid Drops Help?

A short supervised course may reduce inflammation.

Unsupervised or prolonged steroid use can cause raised eye pressure, glaucoma, cataract and infection.

Can Autologous Serum Help?

It may be considered for severe, persistent or neurotrophic ocular-surface disease.

It requires specialised preparation and monitoring.

Is SMILE Better for Dry Eyes?

SMILE generally causes less early corneal nerve disruption than LASIK.

It can still cause dry eye and is not suitable for every prescription or cornea.

Is PRK Better for Dry Eyes?

Not always.

PRK avoids a flap but removes the surface epithelium and can also disrupt corneal nerves and tear-film stability.

Can I Have LASIK if I Already Have Dry Eyes?

Mild or moderate disease may sometimes be treated and stabilised first.

Severe or uncontrolled dry eye may make LASIK unsuitable.

Can LASIK Cure Contact Lens Dryness?

Stopping contact lenses may improve lens-related irritation, but LASIK does not treat underlying meibomian gland dysfunction, aqueous deficiency or allergy.

Can Dry Eye Affect the LASIK Result?

It can affect measurement accuracy, visual quality and recovery.

The surface should be stabilised before surgery and before considering an enhancement.

Can Screens Damage the LASIK Result?

No.

Screens do not reverse the laser correction, but prolonged use may worsen dryness and fluctuating vision.

Can I Wear Contact Lenses Again?

Possibly, but fitting may differ after LASIK.

Contact lenses should not be worn during early recovery without approval.

Is Severe Pain Normal?

No.

Severe or increasing pain requires prompt examination.

Can Dry Eye Cause Blindness?

Ordinary mild dry eye does not cause blindness.

Severe untreated surface disease can rarely lead to infection, scarring and permanent visual loss.

Key Takeaway

Dry eye is one of the most common symptoms after LASIK.

LASIK can temporarily disturb the ocular surface because:

The flap cuts corneal nerves
Corneal sensation decreases
Reflex tear production may fall
Blinking may become less effective
Tear evaporation may increase
Ocular-surface inflammation may develop

Common symptoms include:

Burning
Grittiness
Watering
Light sensitivity
Eye fatigue
Fluctuating vision
Blur that clears after blinking
Difficulty with screens or air-conditioning

For most patients, symptoms improve over weeks or months as corneal sensation and tear regulation recover.

Risk is greater with:

Pre-existing dry eye
Meibomian gland dysfunction
Low tear production
Contact lens intolerance
Higher myopia
Deeper laser treatment
Autoimmune ocular-surface disease
Incomplete eyelid closure
Significant screen and environmental exposure

Treatment may include:

Preservative-free artificial tears
Gel or ointment
Warm compresses and eyelid care
Meibomian gland treatment
Anti-inflammatory medication
Punctal plugs
Autologous serum
Specialised contact lenses
Environmental and screen adjustments

Symptoms that are severe despite minimal clinical dryness may represent neuropathic corneal pain and require a different approach from ordinary dry-eye disease.

LASIK should not be performed while significant dry eye remains uncontrolled.

The ocular surface should also be stabilised before deciding that the LASIK prescription has regressed or before planning another laser treatment.

Severe pain, increasing redness, rapidly worsening vision, marked light sensitivity, discharge or a white corneal spot requires urgent examination.

References

Eydelman M, Hilmantel G, Tarver ME, et al. Symptoms and Satisfaction of Patients in the Patient-Reported Outcomes With LASIK Studies. JAMA Ophthalmology. 2017;135:13–22. PMID: 27893066.
US Food and Drug Administration. LASIK Quality of Life Collaboration Project.
De Paiva CS, Chen Z, Koch DD, et al. The Incidence and Risk Factors for Developing Dry Eye After Myopic LASIK. American Journal of Ophthalmology. 2006;141:438–445. PMID: 16490488.
Yu EYW, Leung A, Rao S, Lam DSC. Effect of LASIK on Tear Stability. Ophthalmology. 2000. PMID: 11097583.
Bower KS, Sia RK, Ryan DS, et al. Chronic Dry Eye in Photorefractive Keratectomy and LASIK. Journal of Cataract & Refractive Surgery. 2015. PMID: 26796443.
Chao C, Golebiowski B, Stapleton F. Structural and Functional Changes in Corneal Innervation After LASIK and Their Relationship With Dry Eye. 2015. PMID: 26259635.
Liu YC, et al. Long-Term Corneal Denervation After SMILE and LASIK. Journal of Refractive Surgery. 2020. PMID: 33034357.
Denoyer A, Landman E, Trinh L, et al. Dry Eye Disease After Refractive Surgery: Comparative Outcomes of SMILE and LASIK. Ophthalmology. 2015. PMID: 25458707.
Salib GM, McDonald MB, Smolek M. Safety and Efficacy of Cyclosporine 0.05% Drops Versus Unpreserved Artificial Tears in Dry-Eye Patients Undergoing LASIK. 2006. PMID: 16765793.
Zhao L, et al. Impact of Topical 0.05% Cyclosporine A on Ocular-Surface Stability After Corneal Refractive Surgery. 2024. PMID: 38865592.
Yung YH, et al. Punctal Plugs for Treatment of Post-LASIK Dry Eye. 2012. PMID: 22358586.
Alfawaz AM, et al. Efficacy of Punctal Occlusion in Management of Dry Eyes After LASIK. 2014. PMID: 24147767.
Noda-Tsuruya T, et al. Autologous Serum Eye Drops for Dry Eye After LASIK. 2006. PMID: 16447938.
Shetty R, et al. Prophylactic Thermal Pulsation Before Refractive Surgery: Ocular-Surface and Tear-Film Outcomes. 2023. PMID: 37026292.
Theophanous C, Jacobs DS, Hamrah P. Corneal Neuralgia After LASIK. 2015. PMID: 26154691.
Goyal P, et al. Oral Omega-3 Fatty Acid Supplementation for LASIK-Associated Dry Eye. 2017. PMID: 28060063.