DIPLOMA IN OPHTHALMIC TECHNIQUES
EXAMINATION, NOVEMBER 2017
REFRACTION
(2016 onwards)
Time 3 Hours Maximum 70 Marks
Part A x 2 10)
Answer all questions.
1. Define low vision.
2. Define dioptrio power.
3. What is retinoscopy?
4. What is a real image?
5. What is bandage contact lens?
Part B x 5 20)
Answer any four questions.
6. Jacksons cross cylinder.
7. Uses of prisms in ophthalmology.
8. What is IPD? How do you measure IPD?
9. Identification of different types of lenses.
10. Keratometry.
Sub. Code
12
CP-8458
2
Ws 4
11. Presbyopia and its correction.
12. Non-optical low vision aids.
Part C x 10 40)
Answer any four questions.
13. List objective refraction techniques. Write in detail on
retinoscopy.
14. Define myopia. Classify myopia. What are the methods of
correction?
15. Soft contact lens fitting.
16. Define Astigmation. Write in detail about methods of
correction and its verification tests.
17. Define low vision. What are grades of low vision and
about low vision aids?
18. How will you record visual activity in pre-school children?
Write about the various charts used for their vision
recording.
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