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Flashcards in Lec 7 Deck (80)
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1

Illumination technique for Transillumination Defect

Iris retro

2

Best ilumination technique for guttata

Specular reflection

3

Best illumination technique for sub-epi infiltrate

indirect

4

Unilateral proliferation of melanocytes following CN V branches 1&2 describes

Nevus of Ota

5

Melanocytes of the nevus of ota follow what nerve?

CN V1 and V2

6

Describe: Cogan's senile plaque (aka Senile Hyaline Plaque)

benign in elderly (pt >60yo), bilat, N&T, no clinical signif

7

What causes senile plaque of sclera

constant stress & strain on scleral fibers by horiz rectus muscles
(so they're found N&T)

8

Describe: Conjunctivochalasis

redundant, loose, non-edematous conj that creates conj folds that go over the lid margin
Typically involves InfraTemp conj

9

What does a pinguecula typically look like

N&T (interpalpebral), yellow-white bulba conj thickening adjacent to limbus

10

What stimulates a pterygium

UV exposure and/oor climate

11

Describe: pterygium

thick, fleshy trianglar tissue mass onto NASAL cornea, usu bilateral

12

What is: brown discoloration of conj

melanosis

13

What are typical ab-normal findings of the palpebral conj

retention cysts, concretions, papillae, follices

14

Describe: retention cyst

inferior palpebral conj, thin-walled with clear fluid, in gland of Krause

15

Etiology of concretions

idiopathic or result of chronic inflamm

16

Describe: concretions

small, yellow-white, hard on palpebral conj

17

When do concretions become symptomatic?

larger, numerous, calcific

18

What is the key feature of papillae?

single vessel growth in the middle

19

What is papillae assoc with?

allergic rxn, bac infxn

20

Where are papillae best seen?

Sup conj

21

Where can papillae be found in chronic allergic conj-its?

inf. conj

22

Where would follicle presentation be abnormal?

inf or sup palpebral conj in adults or children

23

Follicles are most common with what type of infection?

Viral (or drug toxicity to topical Rx)

24

When would follicle presentation be normal?

in children with lower cul-de-sac, quiet eyes

25

Describe: follicles

pale mounts of infiltrative cellular (lymphoid) with varying diameter, typically small but can be 5x larger than papillae (with trachoma from Chlamydia); avascular center

26

What layer of cornea is damaged in SPK?

epithelium (damage and breakdown) -- think: SPK is aka Punctate Epithelial Erosions

27

What are the potential etiologies for SPK?

dry eye, CL, drug toxicity, trauma, blepharitis, conj-itis

28

Parallelpiped is most effective at detecting which tissue lesions?

scars, abrasions, SPK, SEI, corneal guttae, corneal striae

29

What is direct illumination a poor choice to detect SEI?

direct's bright lght may "wash out" the SEI

30

When is an optic section the most useful?

determine depth & location of defects of cornea and lens