Patent №
US 4,440,477
Granted
1984-04-03
Filed 1981
Owner
RAS HOLDING CORPORATION
Lab
—
AI components
1
vision
Assignment
Recorded
Dataset
AIPD
2023_r1 edition
Application
06316664
A method and device for measuring the optical power of the cornea is provided. The device comprises a light source to illuminate the cornea, apparatus for forming a profile image of the cornea, apparatus for measuring the actual image distance from the anterior corneal surface, processing apparatus for calculating the radius of curvature and dioptric power of the cornea and display apparatus for displaying the calculated data. The method of the present invention comprises illuminating the cornea with a light source, forming a profile image of the cornea, measuring the actual image distance from the anterior corneal surface and calculating the anterior radius of curvature and dioptric power of the cornea.
AI classification
Ownership
RAS HOLDING CORPORATION
assignment · 101440675