LENS MCQ 7

1.       Main type of crystalline in lens is

a.       Alpha

b.     Beta

c.       Delta

d.       Gamma

e.       None of above

2.       Phaco probe sleeve is made up of

a.       Rubber

b.       Plastic

c.     Silicon

d.       Titanium

e.       Silver

3.       Phaco probe tip is made up of

a.       Rubber

b.       Plastic

c.       Silicon

d.     Titanium

e.       Silver

4.       IOL carrying lowest risk of PCO

a.       Silicon

b.       PMMA

c.     acrylic

d.       heparin coated

e.       colomer

5.       Commonly used infilterative anesthesia in cataract surgery

a.       Facial block

b.     Peribulbar block

c.       Subtenon block

d.       Retrobulbar block

e.       Subconjunctival block

6.       Commonly used topical anesthesia in cataract surgery

a.       Xylocaine

b.       Bupivican

c.       Tetracain

d.     Properacain

e.       Methicain

7.       Delayed onset postoperative endophthlmitis is caused by

a.     Propionic achni

b.       Staph aureus

c.       Staphylococcus epidermidis

d.       H. influenze

e.       Pneumococcal

8.       Elshnig pearls are

a.       Small cells in anterior chamber

b.       Localized necrosis of lens epithelium

c.       Opacification of embryonic sutures

d.     Proliferating lens epithelial cells In posterior subcapsular cataract

e.       Fibrosis of anterior capsule  after cataract surgery

9.       All are features of Marphan syndrome are all except

a.       High arched palate

b.       Arachnodactly

c.       Ectopia lentis

d.       Autosomal dominant inheritance

e.     Aniridia

10.   Procedure of calculating power of IOL in cataract surgey is called

a.   Biometry

b.   A-Scan

c.   Keratometry

d.   Pachymetry

e.   B-Scan