Multiple choice questions on community ophthalmology
1. WHO definition of blindness is a visual acuity in the better eye equal to or less than:
A. 3/60
B. 4/60
C. 5/60
D. 6/60
2. In the ninth revision of the international classification of diseases, ‘Visual impairment’ is a visual acuity in the better eye of:
A. 6/18
B. 6/36
C. 6/60
D. 3/60
3. WHO definition of blindness in addition to visual acuity of less than 3/60 (Snellen’s) also includes a visual field in the better eye equal to or less than:
A. 5°
B. 10°
C. 15°
D. 3°
4. As per WHO-NPCB (1986-89) survey, all of the following are true about causes of blindness in India except:
A. Cataract 55%
B. Refractive errors 7.35%
C. Glaucoma 1.7%
D. Trachoma 0.39%
5. All of the following are true about prevention of vitamin A deficiency by supplements except:
A. Dose in children over 1 year is 2 lac IU orally
B. Dose in infants less than 6 month (not being breast fed is 50 thousand IV orally)
C. Dose in first trimester of pregnancy is 1 lac IU
D. Under CSSM Programme first dose (1 lac IU) is given at 9 months of age along with measles
6. The school health surveys are quite useful in early detection of mainly:
A. Refractive errors
B. Amblyopia
C. Colour vision defects
D. All of the above
7. Most common cause of blindness (as per WHO-NPCB Survey, 1989) in India out of the following is:
A. Aphakic blindness
B. Glaucoma
C. Trachoma
D. Vitamin A deficiency
8. Commonest cause of blindness in India:
A. Vitamin A deficiency
B. Cataract
C. Trauma
D. Trachoma
9. Lowest incidence of trachoma is seen in:
A. Punjab
B. Rajasthan
C. Uttar Pradesh
D. Orissa
10. Cataract blindness is:
A. Preventable
B. Curable
C. Avoidable
D. Curable and avoidable
11. Blindness in a child is most commonly due to:
A. Keratomalacia
B. Congenital cataract
C. Glaucoma
D. Injuries
12. The commonest cause of low vision in India is:
A. Uncorrected refractive error
B. Cataract
C. Glaucoma
D. Squint
13. All of the following are given global prominence in the VISION 2020 goal, expect:
A. Refractive errors
B. Cataract
C. Trachoma
D. Glaucoma
14. Most common cause of blindness in children in India except:
A. Malnutrition
B. Ophthalmia neonatorum
C. Glaucoma
D. Congenital dacryocystitis
15. All of the following conditions are immediate priorities in the WHO’s “vision -2020: The right to sight” except:
A. Trachoma
B. Epidemic conjunctivitis
C. Cataract
D. Ibcgicercuasus
16. Under the WHO “Vision 2020’ program, the “SAFE” strategy is adopted for which of the following diseases:
A. Trachoma
B. Glaucoma
C. Diabetic retinopathy
D. Onchocerciasis.
17. On SAFE strategy false is:
A. Screening
B. Antibiotics
C. Facial hygiene
D. Environmental modification
18. All of the following are causes of night blindness except:
A. Oguchi’s disease
B. Gyrate atrophy
C. Choroideremia
D. Devics disease
11. Blindness in a child is most commonly due to:
A. Keratomalacia
B. Congenital cataract
C. Glaucoma
D. Injuries