Eye Symptoms

Itchy eyes may be caused by allergies, dry eye, blepharitis, infection or contact lens problems. Learn what helps and when to seek eye care.

Learn why bright light may cause eye pain or headaches, how photophobia relates to dry eye, migraine and inflammation, and which warning signs need urgent…

Learn why straight lines may look wavy or bent, how macular distortion differs from blur and which sudden visual changes require urgent eye assessment.

Learn how monocular and binocular double vision differ, what causes diplopia and which symptoms—such as headache, ptosis or weakness—need urgent care.

Sudden vision loss is an emergency. Learn the causes of painless or painful loss in one or both eyes, warning signs and what to do…

Learn the common causes of a red eye, how conjunctivitis differs from keratitis, uveitis and acute glaucoma, and which symptoms need urgent eye care.

Learn the common causes of eye pain, what burning, deep aching or pain with eye movement may mean, and which symptoms require urgent eye care.

Learn why dry eyes cause burning, watering and fluctuating blur, how meibomian gland dysfunction is treated and which symptoms require medical attention.

Learn why flashes of light occur, how retinal flashes differ from migraine aura and which flashes, floaters, shadows or visual changes need urgent eye care.