Amblyopia

Question 1

Give at least 2 classifications of Amblyopia

Answer 1

Stimulus deprivation amblyopia

Strabismic amblyopia

Question 2

This is the most common form of amblyopia

Answer 2

Strabismic amblyopia

Question 3

Develops when unequal ref error in the two eyes cause the image on one retina to be chronically defocused

Answer 3

Anisometropic

Question 4

Uncorrected bilateral astigmatism

Answer 4

Meridional amblyopia

Question 5

Caused by congenital or early acquired media opacity

Answer 5

Stimulus deprivation

Question 6

Stimulus deprivation amblyopia in bilateral cases acuity can be _____________

Answer 6

20/200 or worse

Question 7

This is the least common form of amblyopia but most damaging to treat

Answer 7

Stimulus deprivation amblyopia

Question 8

Also known as isometropic amblyopia or isometropia

Answer 8

Amblyopia due to bilateral high ref error

Question 9

Other term for crowding bar

Answer 9

Contour interaction bars

Question 10

This allows the examiner to test the crowding phenomenon with isolated optotype

Answer 10

Crowding bar/ contour interaction bars

Question 11

Give the treatment for amblyopia

Answer 11

• Eliminating any obstacles to vision such as cataract
• Correcting refractive error
• forcing use of poorer eye by limiting use of the better eye

Question 12

A test estimating the relative level of vision in the 2 eyes for children with strabismus who are under 3yo

Answer 12

Binocular fixation pattern

Question 13

These cataracts may cause mild to moderate amblyopia or may have no effect on visual development

Answer 13

Small polar cataracts/ lamellar cataracts

Question 14

Form of deprivation caused by excessive therapeutic patching

Answer 14

Occlusion amblyopia

Question 15

Defect of central vision

Answer 15

Amblyopia