.

Done by,S. Arya das

Motiwala Sadaf2ND yr 3rd SEM

B.M.C.O

1. Centration point

2. Segment shape

3. Segment top

4. Segment diameter

5. Segment height

6. Segment size

7. Segment depth

8. Segment drop

9. Geometric inset

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1. The reading portion should provide as clear a definition as the near portion.

2. OD should coincide with DVP and ON should coincide NVP.

3. When ON doesn’t coincide with NP, the prismatic effect occurs.

4. There should be no sudden introduction of prismatic effect by the segment at it’s dividing line.

• Sudden upward displacement of image when an object is first viewed through distance and then through top of the segment.

• Image displacement.

• Lower limbus method

• Lower lid margin method

• Subjective determination

• Ajay kumar Bhootra

• Dispensing Borrish

• Troy Fennin

• Monika Chaudhry

• A.K Khurana

• Ankit sir’s notes

• Internet