Eyes

Question 1

Ora Serrata

Answer 1

The retina edge near the iris, AKA Peripheral retina (need to smush the eye to see it)

Question 2

How many layers does the retina have?

Answer 2

10

Question 3

Cause of RH in AHT

Answer 3

Vitreoretinal traction

In infants the vitreous has very strong attachments to the macula, peripheral retinal and blood vessels

Question 4

Pre-retinal hemorrhages

Answer 4

Occure BETWEEN the retina and vitreous (aka a subhyaloid hemorrhage)

On exam, the blood vessels underneath are obscured

Question 5

Intraretinal Hemorrage

Answer 5

Superficial: “flame shaped” (fibers of retina)

Deeper: “Dot blot” (cellular)

Question 6

Subretinal hemorrages

Answer 6

Under the retina, darker and deeper

Vessels are above the hemorrhage

Question 7

Terson Syndrome

Answer 7

Seenin sudden increase of ICP

Peripapillary (optic nerve head) hemorrhage noted, papilledema,

extensive RH not seen

Question 8

Purtscher retinopay

Answer 8

INcreased intrathorascis pressure (crush)

Polygonal white retinal patches