Strabismus

Question 1

What is the treatment of cataract ?

Answer 1

Cataract surgery ( removal of the lens) with or without intraocular implant
If you can’t prescribe lens or glasses

• occlusion therapy to avoid amblyopia

Question 2

Most common cause of leukocoria

Answer 2

Cataract

Question 3

Retinoblstoma is restricted to which age ?

Answer 3

3 years max

Question 4

Describe the shape of retinoblastoma

Answer 4

White/nodular mushrooms shaped mass from retina into the vitreous

Question 5

What is the treatment of retinoblastoma ?

Answer 5

If large and severe : enucleation

Others :
IV chemo
Radiation
Laser therapy
Cryotherapy
Observation

Question 6

Treatment of Retinopathy of pre maturity ?

Answer 6

MOST IMP : laser photocoagulation

Cryotherapy
Anti VEGF agent
Pars plana vitrectomy

Question 7

What is the treatment of coat’s disease?

Answer 7

Mild non vision threatening:
Observation

Laser
Anti VEGF
Cryotherapy
Pars plana vitrectomy

Painful blind eye :
Enucleation

Question 8

What is the treatment of retinal detachment?

Answer 8

Conservative buckling procedure

Pars plana vitrectomy with or without silicon oil

Question 9

Treatment of phorias ?

Answer 9

Correction of refractive errors
Orthoptic exercises
Prisms in glasses
Surgical treatment only when diplopia

Question 10

What is the angle of deviation in infantile esotropia ?

Answer 10

> 30 prism diopter

Question 11

Treatment of infantile esotropia?

Answer 11

Check if there’s Refractive error
Check for amblyopia
Early surgical treatment

Question 12

What is the age of refractive accommodative ?

Answer 12

3 years pre school

Question 13

What is the age of infantile strabismus?

Answer 13

6 months

Question 14

What is the treatment of refractive estopria ?

Answer 14

Convex glasses
Complete cycloplegic refraction
Ambylopia therapy

Question 15

What is the treatment of partial accommodative refractive estropia ?

Answer 15

CCR
Ambylopia
Surgical correction of residual squint

Question 16

Treatment of exotropia ?

Answer 16

Check for refractive error and leave for 6 months then you can consider Surgical correction of deviation but no surgery before 6M-1year

Question 17

When do babies start to have clear vision ?

Answer 17

At 6 months

Question 18

Determination of deviation is made by what ?

Answer 18

By cover and uncover test

Question 19

What are the measurements of deviation ?

Answer 19

1-Hirschberg’s test
(Corneal reflection)

2- prism cover test

Question 20

What do we use in Cycloplegic refraction ?

Answer 20

Cyclopentolate 1% and atropine 1%

Question 21

What is the difference between recession and resection ?

Answer 21

First 1 to weaken the muscle
Resection to strengthen the weak muscle

Question 22

What are the types of amblyopia ?

Answer 22

1-strabismic ambylopia
2- anisometropic Ambylopia
3- stimulus deprivation amblyopia

Question 23

What are the tests used to diagnose Ambylopia?

Answer 23

Pin hole
Crowding phenomena
And visual acuity

Question 24

What is the treatment of ambylopia ?

Answer 24

Occlusion therapy

Question 25

What is the maximum responsive duration of treatment for ambylopia ?

Answer 25

Max 6 months after that further treatment is unlikely to work .