Eye Diseases and Conditions
Adie's Pupil
Learn the meaning of Adie's pupil.
Allergen
Learn the definition of allergen.
Achromatopsia
Learn the definition of achromatopsia.
Allergic Conjunctivitis
An inflammation of the conjunctiva of the eye due to an allergen.
Anterior Ischemic Optic Neuropathy (AION)
Learn the definition of anterior ischemic optic neuropathy (AION).
Artificial Tears
Learn the definition of atificial tears.
Asthenopia
Asthenopia is a collection of symptoms that causes eye fatigue or tiredness.
Atropine Eye Drops
As a treatment for amblyopia, atropine drops work by temporarily blurring vision, forcing the weaker eye to be used.
Bandage Contact Lens
Learn the definition of bandage contact lens.
Behcet's Disease
Behcet's disease often affects the eye.
Blepharitis
Learn the definition of blepharitis.
Blocked Tear Duct
Newborn babies sometimes have blocked tear ducts.
Cataract
Learn the definition of cataract.
Chalazion
Learn the definition of chalazion.
Choroidal Melanoma
Choroidal melanoma is a cancer of the eye that develops in a part of the eye called the choroid. Learn the full definition of choroidal melanoma.
Color Blindness
Learn the definition of color blindness.
Cone-Rod Dystrophy
Cone-rod dystrophy (CRD) is a progressive retinal degenerative disease that sometimes leads to blindness.
Congenital Cataract
Learn the definition of congenital cataract.
Corneal Ulcer
A corneal ulcer is an opening, sore or erosion in the cornea that may cause blindness if severe and left untreated.
Dacryocystitis
Learn the definition of dacryocystitis.
Diabetic Retinopathy
Learn the definition of diabetic retinopathy.
Diplopia
Diplopia is double vision.
Distichiasis
Learn the definition of distchiasis.
Drusen
Drusen are small yellow deposits that form under the retina.
Endophthalmitis
Learn the definition of endophthalmitis.
Epidemic Keratoconjunctivitis
Learn the definition of epidemic keratoconjunctivitis.
Eye Allergy
Eye allergies can produce many annoying symptoms, including itchy, red eyes.
Eyelid Margin Disease
Eyelid margin disease is a constant inflammation of the eyelids.
Exophthalmos
Exophthalmos is a condition characterized by bulging of the eyes.
Face Blindness
Face blindness (or prosopagnosia) is a disorder that makes someone unable to recognize faces.
Floaters
Small particles that move in the vitreous, the substance that fills the cavity of the eye.
Floppy Eyelid Syndrome
Learn the definition of floppy eyelid syndrome.
Fuchs' Dystrophy
Learn the definition of Fuchs' Dystrophy.
Glaucoma
A disease of the optic nerve in which vision is lost usually due to increased pressure inside the eye.
Granulated Eyelids
Learn the definition of granulated eyelids.
Hypertensive retinopathy
A disease of the retina and retinal blood vessels that occurs because of uncontrolled high blood pressure.
Intraocular Lens
Learn the definition of intraocular lens, or IOL.
Keratoconus
Keratoconus can cause significant distortion of vision.
Latisse
Learn the definition of Latisse.
Low Vision
Low vision is vision loss that cannot be corrected, resulting in limited sight ability.
Macular Degeneration
Learn the definition of macular degeneration.
Macular Edema
Learn the definition of macular edema.
Myokymia
An involuntary eyelid muscle contraction, typically involving the lower eyelid, less often the upper eyelid.
Nocturnal Lagophthalmos
Learn the definition of nocturnal lagophthalmos.
Ophthalmic Migraine
Learn the definition of ophthalmic migraine.
Optic Neuritis
Learn the definition of optic neuritis.
Papilledema
Learn the definition of papilledema.
Phacoemulsification
Learn the definition of phacoemulsification, a cataract surgery option.
Pharyngoconjunctival Fever
Learn the definition of pharyngoconjunctival fever.
Phosphene
A phosphene is a phenomenon of seeing light without light actually entering the eye.
Photokeratitis
A burn of the cornea (the clear front surface of the eye) by ultraviolet rays.
Photophobia
Learn the definition of photophobia.
Pinguecula
A common, non-cancerous growth of the mucous membrane lining the eyeball and underside of the eyelids (conjunctiva).
Pseudomembrane
Learn the definition of pseudomembrane.
Pterygium
A non-cancerous, wedge-shaped growth of the clear, thin tissue that lays over the white part of the eye (conjunctiva).
Red Eye
Red eye may be caused by many things.
Retinitis pigmentosa
An eye disease in which there is damage to the retina. The damage worsens over time. People with this condition have problems with night vision and peripheral vision.
Retinoblastoma
Learn the definition of retinoblastoma.
Sarcoidosis
Learn the definition of sarcoidosis.
Scatter Laser Treatment
Learn the definition of scatter laser treatment.
Scleromalacia Perforans
Learn the definition of scleromalacia perforans.
Second Sight
Learn the definition of "second sight."
Subconjunctival Hemorrhage
A subconjunctival hemorrhage is a broken blood vessel in the eye.
Toxic amblyopia
Toxic amblyopia is reduction in visual acuity believed to be due to a toxic reaction in the orbital portion of the optic nerve. It is caused by multiple toxic and nutritional factors and probably other unknown factors.
Trachoma
Learn the definition of trachoma, an infectious eye disease.
Trichiasis
Learn the definition of trichiasis.
Vasoconstrictor
Learn the definition of vasoconstrictor.
Vernal Conjunctivitis
Vernal conjunctivitis is a seasonal inflammation of the outer lining of the eyes.
Vitrectomy
Learn the definition of vitrectomy.
Yag Laser Posterior Capsulotomy
Learn the definition of Yag laser posterior capsulotomy.
Peripheral Iridotomy
Learn the definition of peripheral iridotomy.
Narrow Angle Glaucoma
Learn the definition of narrow angle glaucoma.
Ocular Hypertension
Learn the definition of ocular hypertension.
Neovascular Glaucoma
Learn the definition of neovascular glaucoma.
Choroidal Effusion
Learn the definition of choroidal effusion.
Choroidal Neovascular Macular Degeneration
Learn the definition of choroidal neovascular macular degeneration.
