Title:
CONTACT LENSE
Document Type and Number:
Japanese Patent JPS5545097
Kind Code:
A
Abstract:
A contact lens has an improved interior surface which includes an optical zone and peripheral zone. The optical zone has a radius of curvature similar to that of the cornea of the eye to be fitted. The peripheral zone defines an arc which is substantially tangent to the optical zone at its edge and which intersects the curved line defined by the selected diameter of the lens at the selected sagittal depth. The lens can be formed from a hard or flexible material and can be made by a lathe turning or by molding.
Inventors:
UEIN EDOWAADO TOROMUBURII
RONARUDO GUREN SEEGAA
RONARUDO GUREN SEEGAA
Application Number:
JP12188379A
Publication Date:
March 29, 1980
Filing Date:
September 21, 1979
Export Citation:
Assignee:
DOW CORNING
International Classes:
G02C7/04; (IPC1-7): G02C7/04
Domestic Patent References:
| JPS4886844U | 1973-10-20 |
Foreign References:
| US1921972A | 1933-08-08 |