Auto-keratometer

Details Auto-keratometer Auto-keratometer

1986-12-19

1988-11-22

Bovernick, Rodney B.

Optics: eye examining, vision testing and correcting

Eye examining or testing instrument

Objective type

351211, A61B 310

Patent

active

047861630

ABSTRACT:
An auto-keratometer attached to an operating microscope to measure the refraction and astigmatic condition of the cornea comprises a cornea irradiating light source section disposed below the operating microscope, and switching means for selectively switching the light source section between an irradiating position on the optical axis and a retracted position. When it is desired to measure the corneal condition, the light source section is set at the irradiating position below the operating microscope, so that the light from the light source section reflected by the cornea travels through a beam splitter and is detected by a detector, whereby the refraction or astigmatic condition of the cornea is measured. If the light source section is found interfering with the operation, the light source section is set at the retracted position by rotating it through 180 degrees, whereby the working region below the microscope is widened to facilitate the operator's surgical operation on the cornea.

REFERENCES:
patent: 4046463 (1977-09-01), LaRussa et al.
patent: 4490022 (1984-12-01), Reynolds
patent: 4660947 (1987-04-01), Amoils
Brochure published in the United Kingdom by Keeler Limited entitled "Keeler Amoils Surgical Astigmometer".

Affiliated with

Also associated with

Rating

Auto-keratometer does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Auto-keratometer, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Auto-keratometer will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-432047