Lens
1. Regarding congenital cataract, which of the following is the most likely
complication in unilateral cases:
a) Nystagmus.
b) Ptosis.
c) Retinal detachment.
d) Corneal opacification.
e) Amblyopia.
2. Which of the following medication is most likely associated with the
development of complicated cataract:
a) Diuretics.
b) Corticosteroids.
c) Beta blocker.
d) Insulin therapy.
e) Heavy metals
3. Main symptom of immature cataract is:
a) Headache.
b) Redness.
c) Diminution of vision.
d) Binocular diplopia.
e) Disfigurement.
4. Regarding the advantages of phacoemulsification over extracapsular
cataract extraction (ECCE) which of the following is most likely to be true:
a) Higher surgery-induced astigmatism.
b) Slower healing time.
c) Higher risk of expulsive hemorrhage.
d) Can be carried out under topical anesthesia.
e) Violation of the conjunctiva.
5. Regarding visual prognosis after cataract surgery, which of the
following is most likely associated with unfavorable outcome:
a) Ability to do color discrimination/differentiation test with red and green glass discs.
b) Visual acuity of 6/60 or better.
c) Visual acuity of PL (perception of light).
d) Reactive pupil (both direct and consensual).
e) Good appreciation of light projected from different directions (light projection test).
6. Regarding crystalline lens capsule, which of the following statement is
most likely true:
a) Thinnest at the anterior pole.
b) Thick at the anterior pre-equatorial region.
c) Posterior pole is approximately 14 microns thick.
d) Anterior pole is 4 microns thick.
e) It allows passage of large molecules both into and out of the lens.
7. A-scan ultrasonography of the eye is used to calculate the power of the
intraocular lens by measuring:
a) Corneal curvature.
b) Axial length of the eye.
c) Refractive index.
d) Choroidal thickness.
e) corneal thickness.
8. Complicated cataract can result from the following this ocular disease:
a) Herpetic keratitis.
b) Retinal detachment.
c) Paralytic squint.
d) Dacryoadenitis.
e) Cicatricial entropion.
