Aqueous and Vitreous Humor

Question 1

Aqueous Humor Function

Answer 1

provide nutrients- O and glucose to cornea and lens

Question 2

Makes Aqueous Humor

Answer 2

Pars Plicata

Question 3

Contents of Aqueous Humor

Answer 3

Ascorbic acid, lactic acid, glucose, bicarbonates, chlorides

Question 4

Ascorbic Acid

Answer 4

Vitamin C
antioxidant
helps make collagen

Question 5

AH volume and replacement

Answer 5

V = .2uL

replaced every 100 min

Question 6

Vitreous Humor Content

Answer 6

salt, soluble protein, hyaluronic acid, collagen, water

Question 7

Makes Vitreous Humor

Answer 7

Pars Plana

Question 8

Types of Collagen in VH

Answer 8

2, 9, 11

Question 9

Fibrillin

Answer 9

minor part of VH

major structural component of zonules

Question 10

Cause of Marfan’s

Answer 10

mutation of fibrillin-1

Question 11

Opticin

Answer 11

leucine rich

binds growth hormone and GAGs

Question 12

Hyaluronic Acid

Answer 12

hydrophilic
maintain spacing b/t collagen fibrils
conc highest posteriorly

Question 13

Hyalocytes

Answer 13

make Hyaluronic Acid or glycoproteins for collagen

phagocytic

Question 14

Fibroblasts

Answer 14

make collagen fibrils

Question 15

VH Functions

Answer 15

support
storage
shock absorber
transmits and refracts light

Question 16

Metabolites of the vitreous that affect the retina the most

Answer 16

Magnesium, copper, selenium, zinc