Common Diseases and Disorders of the Eye

Flashcards about common diseases and disorders of the eye.

Ptosis

Drooping of the upper eyelid because of paralysis.

Chalazion

A nodule or cyst on the eyelid caused by an obstruction of a sebaceous gland.

Hordeolum

The medical term for a stye; a pus-filled, painful lesion on the eyelid caused by an infection of a sebaceous gland.

Blepharitis

Swelling of the eyelid near an eyelash hair follicle.

Ectropion

Eversion of the edge of an eyelid.

Entropion

Inversion of the edge of an eyelid.

Conjunctivitis

The medical term for pinkeye; an inflammation of the conjunctiva caused by an infection or allergy.

Dacryoadenitis

Inflammation of the lacrimal gland typically caused by bacteria, viruses, or fungi.

Subconjunctival hemorrhage

Bleeding between the conjunctiva and the sclera caused by an injury.

Xerophthalmia

Drying of the eye because of insufficient tear production.

Diabetic retinopathy

A complication of diabetes where there is damage to the retina.

Corneal abrasion

An injury to the outer layer of the cornea.

Corneal ulcer

Pitting of the cornea caused by an infection or injury that can leave a cloudy scar.

Uveitis

Inflammation of the uvea leading to swelling.

Iritis

Inflammation of the uvea that affects primarily the structures in front of the eye.

Keratitis

Inflammation of the cornea caused by some type of infection.

Keratoconus

Distortion of the cornea leading to blurred or distorted vision.

Retinal detachment

When some or all of the retina detaches from the choroid leading to blindness if not repaired.

Nystagmus

Involuntary rhythmic movement of the eyeball.

Papilledema

Swelling and inflammation of the optic nerve at the optic disc area.

Anisocoria

When the pupils are unequal in size.

Cataract

The loss of transparency of the lens causing progressive loss of visual clarity.

Vitreous floaters

Cellular debris that float in the vitreous humor and can cast a shadow on the retina.

Photopsia

The appearance of flashes of light caused by damage to the eye or seen in migraine headaches.