[LO 0219] FEBRUARY 2019 Sub. Code: 1536
DIPLOMA IN OPTOMETRY TECHNOLOGY
SECOND YEAR
PAPER I REFRACTION TECHNIQUES, CONTACT LENSES, LOW VISION
AIDS AND OPTICAL DISPENSING
Q.P. Code: 841536
Time Three Hours Maximum 100 Marks
Answer All questions.
I. Elaborate on: x 10 30)
1. Write in detail about retinoscopy.
2. Draw a neat labeled diagram of frames and explain its part.
3. Explain about soft contact lens fitting and its evaluation.
II. Write notes on: (10 x 5 50)
1. Spherical aberration.
2. Contact lens fitting in Aphakia.
3. Properties of contact lens.
4. Explain about progressive lenses design.
5. Cyclopegic refraction.
6. Keratometer.
7. Rehabilitation in low vision.
8. Types of intraocular lenses and its feature.
9. Datum system.
10. Non optical device in low vision.
III. Short answers on: (10 x 2 20)
1. What are high index lenses?
2. Importance of IPD.
3. Oxygen permeability.
4. Mention the different types of near vision notation.
5. What is image jump in bifocal lenses?
6. Abbe value.
7. Pantoscopic tilt.
8. Different types of bridges.
9. Define low vision.
10. LARS rule.