Amblyopia part 2

Question 1

True/False: A person has a strabismus if they have Amblyopia.
(***she said she could ask us this)

Answer 1

False, not always a strabismus with Amblyopia

Question 2

This is due to uncorrected high astigmatism in one or both eyes. Can be easily missed because child can squint and compensate.

Answer 2

Meridional Amblyopia

Question 3

This is caused by very high refractive error in both eyes. Refractive error is so HIGH that a clear retinal image cannot be obtained. Causes a bilateral decrease in VA

Answer 3

Isoametropic Amblyopia

Question 4

A 6 year old caucasian male with +7.50 of uncorrected hyperopia will have difficulty focusing to form a clear image at distance and/or near. Even after proper correction VA may stay reduced.

Answer 4

Isoametropic Amblyopia

Question 5

True/False: HIGH hyperopia may also cause an esotropia, but this is not always the case.

Answer 5

True

Question 6

A child has normal refractive error with good VA in one eye and a significant refractive error and reduced VA in the other eye. Hard for parents to detect, because the child relies on better seeing eye.

Answer 6

Anisometropic Amblyopia

Question 7

What is a common comment from a child that has anisometropic amblyopia?

Answer 7

“My left eye never sees well.”

“Thats my bad Eye”

Question 8

What are some things that you should not do to detect Amblyopia?
(***she said she could ask us this)

Answer 8

VA with both eyes open
Not making sure each eye is properly covered
Skipping parts of the exam
Assumptions that little children can’t have visual impairments

Question 9

If you see +1 in one eye and +6 in the other eye what is likely the problem?

Answer 9

Anisometropic amblyopia

Question 10

What is the least ammount of refractive error difference between the two eyes that can cause anisomteropia?
(***she said she could ask us this)

Answer 10

+1.00 D

Question 11

Is amblyopia likely to develop with -12.00 D?

Answer 11

Yes

Question 12

Is amblyopia likely to develop with refractive error of
OD: -0.75 DS
OS: -3.25 DS
(***she said she would ask us this.)

Answer 12

NO, not likely for Amblyopia to develop
Right eye is used for distance viewing
Left eye is used for near

Question 13

What entrance test determines presence of strabismus?

Answer 13

Cover test

Question 14

When does strabismus occur?

Answer 14

when visual axis of both eyes do not intersect at fixation

Question 15

What does it mean when the question is asked: Is this strabismus accommodative?

Answer 15

she’s asking us there a lot of hyperopia with the Pt

Question 16

What things can cause a strabismus?

Answer 16

early onset, accommodative, result of stroke, thyroid, retinal disease or other systemic disease.

Question 17

True/False: Heterotropia/tropia/strabismus is classified by the direction of the fixating eye.

Answer 17

False, non fixating eye

Question 18

Strabismus prognosis is worse with what 3 things?

Answer 18

Esotropia
Anolamous correspondance
constan unilateral strabismus

Question 19

Know table on slide 21 and 22 of strabismus lecture 2

Answer 19

she said she could ask us***

Question 20

True/False: There is more risk of having injury to the non amblyopic eye.

Answer 20

True, sometimes prescribe polycarbonate contact lenses to protect from stuff injuring the good eye

Question 21

True/False: A unilateral strabismus is more likely to cause amblyopia. An intermittent or alternating strabismus is less likely to lead to amblyopia.

Answer 21

True

Question 22

At what age is the critical period?

Answer 22

infant to 6,7,8 years old

Question 23

A 7 year old with strabismus, what type of exam should I do?

Answer 23

history, VA, W4D, Cover test, retinoscopy, ophthalmoscopy, etc
anyone in your family had eye problems?
have you ever patched before?
any surgeries?
any eye disease?
medications?
trauma?