Lens

Question 1

Lens capsule is thickest at which position

Answer 1

PreEquatorial

Question 2

List of antioxidants in lens

Answer 2

Glutathione 
catalase 
superoxide dismutase
 vitamin C 
vitamin E

Question 3

Lens contents

1) percentage of water
2) insoluble components
3) soluble components
4) which component it is the largest
5) which component is most common
6) which component is responsible for congenital cataract

Answer 3

1) 65%
2) albuminoids
3) crystallines
4) alpha crystalline
5) beta crystalline
6) gamma crystalline

Question 4

Congenital cataract

1) most common type
2) which cataracts are usually not significant and stationary
3) which cataracts are visually significant
4) most common visually significant cataract

Answer 4

1) blue dot cataract/ cataracta punctata cerulae
2) blue dot cataract, cataracta centralis pulverlenta, posterior polar(mittendorf dot)

3) lamellar/zonular cataract, coronary cataract,
Sutural, cong rubella

Question 5

Type of cataract seen in

1) ant pole
2) ant capsule
3) ant subcapsular
4) cortex
5) peripheral cortex
6) posterior cortex
7) nucleus
8) post subcapsular
9) post capsular
10) post pole

Answer 5

1) anterior polar cataract
    Perforating traumatic cataract
2) perforating traumatic cataract
3) Electric cataract
4) blunt trauma (rosette)
     Coronary cataract
     Blue dot cataract
5) cuneiform cortical senile cataract
     Lamellar/zonular cataract
6) cupuliform cortical senile cataract
7) cataracta centralis pulverulenta
    Nuclear senile cataract
8) complicated cataract
     Toxic cataract
     Glassblower cataract (IR)
9) after cataract/secondary cataract
10) mittendorf dot (post polar cataract)

Question 6

Metabolic cataracts

Snowflake cataract

Oil droplet cataract

Sunflower cataract

Peripheral spoke like cataract

Christmas tree cataract

Answer 6

Diabetes mellitus

Galactosemia (reversible)

Wilson’s disease

Hypocalcemia and fabry’s disease

Myotonic dystrophy

Question 7

Complications of cataract surgery

Most dangerous complication

1) in conventional ECCE
2) in phaco emulsification and SICS

3) most common complication after cataract surgery

4) prevention of endophthalmitis
5) treatment of endophthalmitis

Answer 7

1) expulsive choroidal HGE
2) endophthalmitis

3) after cataract/ secondary cataract

4) betadine
5) intravitreous antibiotics

Question 8

Most common bacterial infection in trauma of eye

causes of acute endophthalmitis
causes of delayed endophthalmitis

Most common feature in marfan syndrome eye
Most prominent feature in marfan syndrome eye

Answer 8

Bacillus cereus

Staph epidermidis
Fungal and propionibacterium acne

Subluxation
Megalocornea