Vocab Flashcards
Vascularization
Abnormal or excessive formation of blood vessels (retina cornea)
Avascular
Having a few or no blood vessels
Diabetic retinopathy
Tiny blood vessels (capillaries) in back of the eye can deteriorate and leak fluid into under retina
DME
Diabetic, macular edema
NPDR (Non-proliferative diabetic retinopathy
The early stage of the disease in which symptoms mild/non-existent. The blood vessels in the retina are weakened. Tiny bulges in the blood vessels, microaneurysms, may leak fluid into retina (no vascularization).
PDR (Proliferative Diabetic Retinopathy)
The more advanced form of the disease. Circulation problems deprive retina from oxygen. As a result, new, fragile blood vessels can begin to grow in the retina and into the vitreous (gel-like fluid that fills back of the eye) (vascularization).
Macular Degeneration
Center of retina begins to deteriorate
Dry AMD
Also referred to as nonexudative. Exudative is characterized by the formation of choroidal neovascular membranes (CNM) under the retina, which can leak fluid and blood.
Common eye disorder among people 50 year or older. It causes blurred or reduced central vision, due to thinning of the macula
Wet AMD
Also referred to as exudative. Exudative is characterized by the formation of choroidal neovascular membranes (CNM) under the retina, which can leak fluid and blood.
A chronic eye disorder that causes blurred vision or a blind spot in visual field. Generally, caused by abnormal blood vessels that leak fluid or blood into the macula
Diabetic Macular Edema (DME)
Caused by ongoing damage to the small blood vessels of the retina. The leakage of fluid into the retina may lead to swelling of the surrounding tissue including the macula. DME is the most common cause of vision loss in people with diabetic retinopathy.
Retinal Vein Occlusion (RVO)
A common vascular disorder of the retina and one of the most common causes of vision loss worldwide. RVO is further subdivided into non-ischemic and ischemic types, according to the amount of retinal capillary ischemia seen on FA.
Central Retinal Vein Occlusion (CRVO - non-ischemic)
A milder type characterized by leaky retinal vessels with macula edema.
CRVO (ischemic)
A more severe type with closed-off small retinal blood vessels
HCRVO (Hemi-central RVO)
Involves only one half of the retinal surface (ischemic / non-ischemic)
BRVO (Branch RVO)
A blockage of 1 or more branches of the central retinal vein, which runs through the optic nerve. Peripheral vision loss, blurred, distorted central vision.
