Saved Bookmarks
| 1. |
LL A presbyopic patient has near point as 30 cmand far point as 40 cm. The dioptric power forthe corrective lens for seeing near object is |
|
Answer» ONG>EXPLANATION: far point (f)=-40 power of lens=reciprocal of its focal length p=1/f according to the formula E, p=1/-40=-2.5D so the answer is -2.5D |
|