A new keratometer.
A keratometer design is described which uses Drysdale's method for determining the radius of a curved surface with the use of a spherocylindrical lens system to allow simultaneous observation of the surface and center of curvature images. This not only results in a simple compact keratometer but also provides an instrument that can be used to measure the radius of curvature of the peripheral cornea.
Douthwaite
W A
WA
School of Optometry, Bradford University, West Yorkshire, England.
D003315:Cornea / Q000033:anatomy & histology*; D006801:Humans; D008853:Microscopy / Q000295:instrumentation; D009885:Ophthalmology / Q000295:instrumentation*