Clinical Study
Using Surgical Microscope for Sclera Buckling and Transscleral Cryopexy: An Alternative Procedure of Treatment for Rhegmatogenous Retinal Detachment
Table 1
Areas viewed through three-mirror contact lens (modified from Schepens [
12]).
| | Lens I | Lens II | Lens III | Lens IV | | (Contact lens) | (Lens) | (Lens) | (Lens) |
| Areas viewed | 30 degrees around the macula | From 30 degrees to equatorial fundus | Peripheral fundus | Extreme fundus periphery | Areas posterior to the limbus | The posterior pole of the fundus | 13–17 mm* (chord length) | 10–15 mm* (chord length) |
9 mm* (chord length) |
|
|
An additional 0.5 millimeter should be added for each additional diopters of −3.0 in eyes with myopia.
|