Instrument for object detection of ocular diseases
US4413890A · kind A · utility
Inventors
Key dates
| Filing date | Mar 20, 1981 |
| Grant date | Nov 8, 1983 |
| Priority date | — |
| Expiry date | Mar 20, 2001 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61B3/10
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
An apparatus for objectively detecting ocular disorders adapted to the expedient examination of uncooperative patients generally comprises structures for collimating light into two predetermined paths for coaxial illumination of a person's right and left eye; structures for conditioning the collimated light; apertures for illuminating and retroflecting the collimated light by a person's eyes; and structures for detecting the relative intensities of the retroflected collimated light. A method for expediently examining uncooperative patients adapted to objectively detecting an ocular disorder comprises coaxially illuminating each eye; effecting a relative position between the apertures of an apparatus and a patient'eyes so that brief illuminating contact with the collimated light is effected; retroflecting the collimating light illuminating each eye; and measuring the relative intensities of the retroflected collimated light so that ocular disorders can be objectively determined.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.