Vision Terms

A

Achromatopsia – is a non-progressive and hereditary visual disorder which is characterized by decreased vision, light sensitivity, and the absence of color vision. In the U.S. it affects about 1 in every 33,000 people.

Albinism – includes a group of inherited disorders that are characterized by little or no production of the pigment melanin. The type and amount of melanin your body produces determines the color of your skin, hair and eyes. Most people with albinism are sensitive to sun exposure and are at increased risk of developing skin cancer.

AMD (Age-Related Macular Degeneration) –

Amblyopia – is the medical term used when the vision in one of the eyes is reduced because the eye and the brain are not working together properly. The eye itself looks normal, but it is not being used normally because the brain is favoring the other eye. This condition is also sometimes called lazy eye.

Angiogenesis –

Aniridia – 

Anophthalmos – 

Aphakia

Apoptosis – Programmed cell death

Astigmatism

B

Bardet-Biedl Syndrome (BBS)

Best’s Disease

Blepharitis

Blindness – refers to a loss of vision that cannot be corrected with glasses or contact lenses.

Bruch’s membrane

C

Cataracts

Charles Bonnet syndrome

Chorioretinal Atrophy

Choroidal Neovascularization

Choroideremia

Coloboma

Color Blindness

Complete blindness – cannot see anything and do not see light. (Many people who use the term “blindness” mean complete blindness.)

Cone Cell

Cone-rod dystrophy

Congenital Stationary Night Blindness (CSNB)

Conjunctivitis

Cornea

Corneal Disease

D

Diabetic Retinopathy

Drusen

Dry eye syndrome

E

Epiretinal membrane

F

Floaters

G

Glaucoma

H

Hemianopia

Hyperopia

I

Iritis

J

Juvenile Macular Degeneration

K

Keratoconus

L

Leber congenital amaurosis

Legal blindness

Low vision

M

Macula

Macular Degeneration

Macular Hole

Marfan Syndrome

Megalophthalmos

Microphthalmos

Myopia (Nearsightedness)

N

Non-24-Hour Sleep-Wake Disorder (Non-24)

Nystagmus

O

Ophthalmia Neonatorum

Optic Nerve

Optic Nerve Atrophy

Optic Nerve Hypoplasia

P

Partial blindness – very limited vision.

Photoreceptor Cells

Presbyopia

Q

 

R

Retina

Retinal Detachment

Retinitis Pigmentosa (RP)

Retinal Pigment Epithelium (RPE)

Retinopathy of Prematurity

Retinoschisis

Rod Cell

Rod-cone dystrophy

S

Sclera

Stargardt’s Disease

Strabismus

T

Trachoma

U

Usher Syndrome

Uveitis

V

Visual Acuity

Visual Field

Vitreous

W

 

X

 

Y

 

Z

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