Retina

Question 1

The following colours is seen by which type of cones

Red

green

blue

Answer 1

L, large

M, medium

S, small

Question 2

Choroidal changes in hypertensive retinopathy

Answer 2

Seigerst streaks (linear, fibrinoid necrosis)

Elschnig spots(not pearls) (lacunar infarcts)

Question 3

Causes of

CRAO

CRVO

Answer 3

Embolic (carotid>heart)>Arteritis> increased IOP

CRAO
galucoma
HTN
Hypermetropia
Blood dyscrasias

Question 4

Clinical features of

CRAO

CRVO

Fundus findings

CRAO

CRVO

Answer 4

sudden painLESS loss of vision

Sudden painLESS blurring of vision+
90 day glaucoma in ischemic type CRVO

Retina pale and edematous+
Cherry red spot+
Cattle truck/box carring of vessels+
Narrowing of arterioles

Tomato splash/blood & thunder/ sauce & cheese (multiple HGE and cotton wool spot)+
Optic disc edema, retinal edema

Question 5

Clinical features

Central serous retinopathy vs CME

same features

Different features

Answer 5

Metamorphopsia

Improvement in vision with + lens in central serous retinopathy

Question 6

Triad of retinitis pigmentosa

Clinical features

Answer 6

Vascular attenuation

Bony spicule pigmentation

Waxy pallor of disc

Night blindness > ring scotoma

Question 7

ROP

Threshold disease

Rush disease

Plus disease

Answer 7

Stage III or more in Zone I and II in 5 continuous/8 noncontinuous clock hours

Progress very rapidly

Has angry looking disc, more chance of RD