Blindness

Question 1

What is blindness

Answer 1

Visual acuity less than 3/60 in the better eye with best possible correction

Question 2

Category 3 visual acuity and visual impairment

Answer 2

Visual acuity<3/60 to 1/60
Visual imparment :blindness

Question 3

Causes of visual impairment

Answer 3

Refractive errors (53%)
Cataract
Glaucoma
Diabetic retinopathy
Age related macular degeneration

Question 4

Causes of blindness

Answer 4

Cataract (most common)
Corneal opacity
Posterior segment pathology
Glaucoma
Diabetic retinopathy
Refractive errors

Question 5

Epidemiological determinants of blindness

Answer 5

Age young and middle aged
Sex female
Occupation welding
Socio economic
Malnutrition of vit a

Question 6

Disease under primary prevention

Answer 6

Trachoma,refractive errors

Question 7

Disease under secondary prevention

Answer 7

Glaucoma,cataract

Question 8

Disease under tertiary prevention

Answer 8

Corneal detachment surgery and corneal grafting

Question 9

Health program to control blindness

Answer 9

NPCBVI(2017)
National program for control of blindness and visual impairment

Question 10

Organisation of NPCBVI

Answer 10

Primary level(CHC,mobile clinics)
Secondary level(district hospital)
Tertiary level(medical college)
District (district blindness control society)
State(state ophthalmic cell)
National(National institute of ophthalmology AIIMS Delhi)

Question 11

Goal of NPCBVI

Answer 11

Reduce prevalence of blindness to 0.3%