[LO 0219] FEBRUARY 2019 Sub. Code: 2721
B.OPTOM
(New Syllabus 2015-2016)
THIRD YEAR
PAPER I OPTOMETRIC OPTICS I II AND DISPENSING OPTICS
Q.P. Code: 802721
Time: Three Hours Maximum: 100 Marks
Answer all questions
I. Elaborate on: x 10 30)
1. Write about the progressive lenses its advantages, types and fitting.
2. Explain the steps of lens surfacing and glazing.
3. Different types of coating in spectacle lenses.
II. Write notes on: x 5 40)
1. Special purpose frames.
2. Occupational multifocal.
3. Polarizing lenses.
4. Boxing system with neat diagram.
5. Types of prism and its uses in ophthalmology.
6. Lens surface faults.
7. Chromatic aberration.
8. Types of bifocal lenses.
III. Short answers on: (10 x 3 30)
1. Types of temple.
2. Draw the image formation by a cylindrical lens.
3. Define pantascopictilt? What is the normal range of pantascopic tilt?
4. Uses of Fresnel prism.
5. List three types of off axis aberration.
6. Three difference between a glass and plastic phtochromatic lens.
7. ANSI standards for prisms.
8. Characteristic of safety eye wear.
9. Types of trifocal lens.
10. Steps of manufacturing of glass lenses.