Glossary

A

Acanthamoeba Keratitis: An infection of the eye that can result in permanent visual impairment or blindness and is believed to be caused by the amoeba Acanthamoeba.

Aqueous Humor: Clear liquid that fills the area in the front of the eyeb between the lens and the cornea.

B

Binocular Vision: Two-eyed vision. 

C

Cataract: Clouding on the lens of the eye.

Childhood Blindness: Blindness that occurs during childhood. 

Comprehensive Dilated Eye Exam: An eye inspection that assesses eyesight and investigates possible eye issues or dysfunctions. 

Cornea: The outermost layer of the eye. 

Corneal Blindness: Blindness caused by diseases in the cornea.

Corneal Scars: Scarring of the cornea. 

D

Diabetic Retinopathy: Diabetes complication that damages/affects the eyes. 

E

Extra Capsular Cataract Extraction (ECCE): A cataract removal procedure where the lens is removed while the lens capsule is left in tact, allowing for the implantation of an intraocular lens.

F

G

Glaucoma: Eye condition that occurs when there is damage to the optic nerve, often due to pressure inside the eye. This pressure builds when the eye’s aqueous fluid cannot drain properly. Damage from the pressure causes loss of peripheral vision, and eventually, blindness.

H

HIV Prophylaxis: An HIV prevention medication. 

I

Idiopathic: Resulting from an unknown cause. 

J

K

L

Leprosy: An infectious disease that causes disfiguring skin sores and nerve damage

M

Macular Degeneration: An eye disease that progresses over time, causing severe and permanent vision loss for people over the age of 60. 

Manual Small Incision Cataract Surgery: A cataract removal procedure where high-grade medical supplies are not needed, and smaller, self-healing incisions are made when removing the cataract to allow for a faster and more seamless healing process. 

N

O

Onchocerciasis: Otherwise known as river blindness, Onchocerciasis is an infectious disease caused by the parasitic worm Onchocerca volvulus.

Open-Angle Glaucoma: A form of glaucoma in which the iris is in the correct position, and the uveoscleral drainage canals are draining properly, but the trabecular meshwork is not draining properly.

P

Phacoemulsification (Phaco): A cataract removal procedure where the eye’s internal lens is emulsified and aspirated from the eye.

Ptosis: A condition in which the upper eyelid falls over the eye. 

Q

R

Retina: A thin layer of tissue located near the optic nerve that lines the back of the eye on the inside.

Retinopathy: Disease of the retina that leads to loss of vision. 

Rubella: A contagious viral infection distinguishable by a red rash.

S

Strabismus: A visual disorder in which the eyes are misaligned and point in different directions.

T

Trachoma: An infectious disease caused by bacterium Chlamydia trachomatis.

U

V

W

X

Y

Z