rafi summary Flashcards

(26 cards)

1
Q

bug of orbital cellulitis

A

staph epidermis

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2
Q

causes of chorophritis

A

CMV in aids
toxoplasma Gondi
toxocara canis

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3
Q

why is toxocara dangerous even though its only in cats and dogs

A

it can form granules that cause irreversible vision loss

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4
Q

why is no MALT good in the eye

A

down regulates immune response

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5
Q

T1 example

A

allergic conjunctivitis

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6
Q

T2 example

A

ocular cicatricial pemphigoid

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7
Q

T3 example

A

corneal melt

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8
Q

T4 example

A

corneal graft rejection

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9
Q

what do amacrine cells do

A

receive input from bipolar cells + project to ganglion, bipolar + other amacrine cells

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10
Q

which cells of retina does light penetrate first

A

ganglion cells

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11
Q

which eye receptors have more congruence

A

rods

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12
Q

are there more rods or cones

A

rods

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13
Q

where are rods located

A

peripheral retina

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14
Q

first line investigation in orbital blow out fracture

A

CT

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15
Q

what actually happens in retinal detachment

A

sub retinal fluid accumulates between neurosensory retina and retinal pigment epithelium

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16
Q

what do you add to a topical steroid to make it more hydrophic

17
Q

what do you add to a topical steroid to make it more hydrophilic

A

alcohol/ acetate

18
Q

what can you add to a drug to make it Better at penetrating the cornea

A

Benzal konium

19
Q

first line treatment in glaucoma

A

latanoprost - opens up ureal-sceral outflow

20
Q

4th nerve palsy causes eye to face

A

medially / superiorly

21
Q

6th Nerve palsy caused by

A

increased cranial pressure

22
Q

internuclear opthalamopoplegia caused by

23
Q

left optic radiation causes which field defects

A

superior nasal visual loss of Left eye

superotemporal loss of right eye

24
Q

left optic tract damage causes which field defects

A

left eye nasal side lost

right eye temporal side loss

25
ION pathogenesis
posterior colliery artery becomes occluded which results in infarction of optic nerve head
26
follicles seen in which condition
viral / chamydial conjunctivitis | rice / grainy like