Monday, January 14, 2008

3 - opthalmology mcqs - 11 to 16

11) Mydriatic used in children

a. Atropine

b. Cyclopentolate

c. Homatropine

d. None of the above

Answer : a) Atropine

Reference: Khurana 3rd Edition Page 68

12) Smoke Stack sign on fluorescein Angiogram is seen in

a. Central Serous Retinopathy

b. Retinitis pigmentosa

c. Retinal detachment

d. None of the above

Answer : central serous chorioretinopathy

Reference: Khurana 3rd Edition Page 263

13) The modified Bailey Lovie chart is used to assess

a. Visual acuity

b. Dark adaptation

c. Contrast difference

d. Color vision

Answer : a) Visual Acuity

Reference: The lack of standardised visual acuity charts with established norms for preschool children has resulted in a diverse variety of visual acuity tests in use for the paediatric patient. All available tests appear to have some limitations, including inadequate norms, long test times, poor reliability, and frequent use test parameters and stimuli which are different from those used with adults. This study compares results for four visual acuity test charts. A Bailey-Lovie Illiterate E chart and an abbreviated Sheridan-Gardiner test were compared with two prototype acuity charts; a modified Bailey-Lovie letter chart and an Arrow chart. A novel symbol such as an arrow constructed as a Snellan optotype incorporated into a chart on the Bailey-Lovie principle, was the test of choice. This test was interesting to preschool children and results showed significant correlation with those obtained using charts based on adult standards.

14) 100 day Glaucoma / 40 day Glaucoma

a. Traumatic

b. Post operative

c. Central retinal vein obstruction

d. Steroid induced

Answer : C) Central Retinal Vein Obstruction

Reference: Khurana 3rd Edition Page 254

15) Diopteric power of eye

a. 20

b. 30

c. 40

d. 60

Answer : d) 60 D

Reference: Khurana 3rd Edition Page 50

16) The following is a component of visual perception

a. Color Vision

b. Texture Vision

c. Movement

d. All of these

Answer : d) All of these

Reference: Ganong 22nd Ediotion page 168

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