Gradual Loss in Vision Flashcards

1
Q

Condition that is short sightedness with blurry far objects is called what

A

Myopia

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2
Q

What do Myopia px have an increased risk oof

A

Open Angle glaucoma

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3
Q

Long sightedness is called what

What are the 2 main causes of it

A

Hypermetropia

==> Eyeball too short
==> Cornea too flat

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4
Q

Open Angled Glaucoma is defined as what

A

Gradual loss in vision due to increased resistance at Canal Of Schlemn

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5
Q

What is the difference between an Open + Closed Angled Glaucoma

A

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

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6
Q

Degeneration of Rods + cons on retina is called what

A

Retinitis Pigmentosa

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7
Q

What is the most common symptom in Retinitis Pigmentosa?

Why?

A

Loss of vision at night time

==> degeneration of Rods > Cones

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8
Q

What is the cause of Retinitis Pigmentosa

A

FH

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9
Q

What are 3 causes of an optic nerve Compression

A

Tumour (pituitary adenoma)

Abscess

Aneurysm

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10
Q

What 4 drug classes can cause dry eyes

A

Diuretics

Antihistamines

The Pill

B-blockers

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