Term
|
Definition
| increased intraocular pressure, with degeneration of optic disc, atrophy of optic nerve; results in early loss of peripheral vision (aka tunnel vision) |
|
|
Term
|
Definition
| visual loss in middle and older ages characterized by inability to focus properly and blurred images, due to loss of accommodation (elasticity of lenses) |
|
|
Term
|
Definition
| opacity, clouding of lens due to changes in lens proteins; results in gradual loss of vision (central first, then peripheral), problems with glare; general darkening of vision; loss of acuity, distortion |
|
|
Term
| Macular degeneration (definition) |
|
Definition
| loss of central vision associated with age-related degeneration of the macula compromised by decreased blood supply or abnormal growth of blood vessels under the retina; typically individuals retain some peripheral vision; increased sensitivity to glare, and difficulty adjusting to light change; may progress to total blindness |
|
|
Term
| Diabetic retinopathy (definition) |
|
Definition
damage to retinal capillaries, growth of abnormal blood vessels and hemorrhage leads to retinal scarring and finally retinal detachment; central vision is impaired; vision is blurred
complete blindness is rare |
|
|
Term
| CVA, homonymous hemianopsia (definition) |
|
Definition
| loss of 1/2 visual field in each eye (nasal half of one eye and temporal half other eye); produces an inability to receive information from right to left side; corresponds to side of sensorimotor deficit |
|
|
