Calculation of the power of an iris clip lens for distant vision.

Until now most eyes treated with a clip lens have had inserted a device of the following specification: Diameter 4-8 mm. Thickness (t) o065-075 mmn. Radius of anterior surface 7-95 mm. Radius of posterior surface plaine Refractive index (n2) I 491 Refractive power in water 20 5 diopters ni FLI P/L2 PIL