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Advanced Optometry Exam 2 > Gonio 1 > Flashcards

Gonio 1 Flashcards

1
Q

People without a crystalline lens usually have a ____ angle

A

Obtuse

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2
Q

When the peripheral iris is more convex the ACA is

A

More narrow

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3
Q

CB extends from ___ to ___

A

scleral spur to the ora serrata

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4
Q

outer portion of the CB lies along the sclera separated by

A

suprachoroidal space

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5
Q

Anterior insertion of the iris maybe produce a ___ angle recess known as ___.

A

Narrow angle

Pleateau iris

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6
Q

most posterior structure of ACA

A

CB

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7
Q

if the CB is visible at the root of the iris it’s an

A

open agle

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8
Q

posterior boundary of the corneoscleral meshwork

A

SS

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9
Q

anterior insertion of the longitudinal portion of the ciliary muscle

A

SS

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10
Q

appears as a bright white line, separates CB from TM

A

Scleral Spur (good landmark during gonio)

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11
Q

uveal meshwork is ___ layer of TM. Consists of rope like cords that extends from _____ to ____.

A

innermost

iris/CB to schwalbes line

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12
Q

cornealscleral meshwork is ___ layer of TM. Extends from ____ to ____

A

middle layer

scleral spur to schwalbes line

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13
Q

this layer of the TM consists of sheets of trabeculae with elliptical holes, that become smaller closer to schlemms canal

A

corneascleral meshwork

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14
Q

endothelial cells line this TM layer

A

corneoscleral

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15
Q

intertrabecular spaces of corneascleral TM communication with sclemms canal

A

communicate with each other but re not continuous

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16
Q

juxtacanalicular meshwork is the __ layer of TM. Located where?

A

outermost

adjacent to the inner wall of sclemms canal

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17
Q

this layer of TM has CT lined on either side by endothelium. What’s the difference between each side?

A

Jxtacanalicular layer
outer endothelial layer compromises inner wall of sclemms canal
inner endothelial is continuous w Trabecular endothelium
GREATEST RESISTANCE TO AQUEOUS OUTFLOW

18
Q

change in structure, function or number of trabecular endothelial cells could be related to

A

POAG

19
Q

TM lies between

A

scleral spur and scwalbes line

20
Q

circular tube lined by endothelium

A

schlemms canal

21
Q

last tissue the aqueous must traverse before entering the canal

A

the inner wall of the endothelium of sclemms canal

  • bumpy
  • involved with transcellular transport of aqueous
22
Q

aqueous travels from the schlemms canal to episcleral venous circulation via

A

collector channels

23
Q

demarcates termination of descements membrane

A

schwalbes line

24
Q

most anterior structure of ACA

A

schwalbes line

25
Q

pigmented SL

A

sampolesis line

26
Q

anteriorly displaced and severely hypertrophic SL

A

posterior embryotoxon

27
Q

the ACA is usually not seen without gonio because

A

critical angle is exceeded (46.5%) so light is reflected back into the eye

28
Q

iridocorneal adhesion causing tent like distortion of iris contour

A

peripheral anterior synechia

29
Q

iris processes arise from iris and insert into —. Shouldnt be confused with synechia because

A

in sert into TM

they dont distort the normal iris contour

30
Q

Corneal wedge aids in locating

A

scwalbes line in difficult to asses angles

31
Q

grade 2 Van herick is ___ closure

A

possible

32
Q

grade 1 van herick is ___ closure

A

probable

33
Q

pupil block can cause

A

convex iris with shallow angle

34
Q

blood in the anterior chamber, common presentation after blunt trauma

A

hyphema

35
Q

Avoid gonio after ___ onset of hyphema

A

4 weeks after onset

can cause to rebleed if rough handling

36
Q

tear between longitudinal and circular muscles of the ciliary muscle associated with delayed onset 2nd open angle glaucoma

A

angle recession diagnosed as an abnormal broad ciliary body band

37
Q

abnormally wide CB band

A

angle recession

38
Q

blood in the inferior angle is

A

not detectable without gonio

microhyphema

39
Q

NVI

A

rubeosis iridis
preceded by hypoxic retinal disease
leads to neovascular glaucoma

40
Q

conditions associated to NVI

A

central retinal vein (or artery) occlusion
diabetic retinopathy
ocular ischemia
uveitis

41
Q

mild ___ is common following gonio

A

SPK , if moderate-severe it can interfere with fundus examination
advice pt they’ll experience foreign body sensation

42
Q

gonio lens and tonometers are ____ items and require high level disinfection

A

semicritical because of contact with mucous membranes or non intact skin

Advanced Optometry Exam 2 (4 decks)

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