Cognitive/VI Diagnoses Flashcards
Cataracts
The lens of the eye becomes progressively opaque resulting in blurred vision.
Corneal Disease-
Keratoconus
Fuchs’ Enothelial Dystrophy
Bullous Keratopathy
Causes clouding, distortion, and scarring. Leads to eventual blindness.
Keratoconus- cornea protrudes.
Fuchs’ Enothelial Dystrophy- starts with a glare at night/sunlight. Vision is blurrier further into the day.
Bullous Keratopathy- Cornea becomes permanently swollen.
Diabetic Retinopathy
Damage to the blood vessels of the retina causing leaking and swelling. Causes light sensitivity to full blindness .
Glaucoma
Damage to the optic nerve (often caused by high pressure in the eye). Can include patchy blind spots, tunnel vision, eye pain, headache, halos around lights.
Macular Degeneration
Small portion of your retina called the macula, wears down.. Dry- Can dim, distort our vision to create blind spots in the center of vision.
Wet- leaking blood/fluid that will distort straight lines , blind sports, and loss of central vision.
Myopia
Nearsightedness (can’t see far away)
Retinal Detachment
The thin layer of tissue (retina) that pulls away from its normal position. Seperates blood vessels and retinal cells leading to a lack of oxygen/nourishment. Can see floaters, blurred vision, or a full shadow.
Retinitis Pigmentosa
Genetic Disorder that involves the breakdown and loss of cells in the retina. Starts with decrease night vision and loss of peripheral vision. Can lead to full vision loss.
Strabismus
Condition where the eyes do not properly align with eachother when looking at an object. May result in loss of depth perception
Nystagmus
Rapid, Involuntary Oscillation of the eyeballs
Farsightedness
Can’t see things close
Hemiopia
Half of the visual field is blurred
VI Guiding Techniques
Clock system, Grid system, Auditory Cues, Verbal Commands
Visual Assessments
Visual Acuity, Depth Perception, Color perception, Field of Vision
Visual Color Assessment
Have students identify nearby colors. Do they see in a gray scale?
