Gradual Loss in Vision Flashcards
Condition that is short sightedness with blurry far objects is called what
Myopia
What do Myopia px have an increased risk oof
Open Angle glaucoma
Long sightedness is called what
What are the 2 main causes of it
Hypermetropia
==> Eyeball too short
==> Cornea too flat
Open Angled Glaucoma is defined as what
Gradual loss in vision due to increased resistance at Canal Of Schlemn
What is the difference between an Open + Closed Angled Glaucoma
Open Angled => Less severe. Involves gradual increase in resistance resulting in a slower development of resistance in eye
Closed Angled => All drainage is blocked generally due to iris (coloured part of eye) leading to blockage of outlet
Degeneration of Rods + cons on retina is called what
Retinitis Pigmentosa
What is the most common symptom in Retinitis Pigmentosa?
Why?
Loss of vision at night time
==> degeneration of Rods > Cones
What is the cause of Retinitis Pigmentosa
FH
What are 3 causes of an optic nerve Compression
Tumour (pituitary adenoma)
Abscess
Aneurysm
What 4 drug classes can cause dry eyes
Diuretics
Antihistamines
The Pill
B-blockers