Handheld corneal topography system
US6152565A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Dec 31, 1997 |
| Grant date | Nov 28, 2000 |
| Priority date | — |
| Expiry date | Dec 31, 2017 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61B3/107
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
A corneal topography system incorporating a handheld unit, a base unit and a computer. The handheld unit includes a placido projector, a light source and a camera that receives the image of the placido image being reflected off of the patient's cornea. The light source is preferably comprised of a lightweight luminescent panel such as an EL panel. The handheld unit further includes a laser and a display that are used to properly align the handheld unit with respect to the patient's cornea into a desired orientation. The resulting reflected image is captured when the handheld unit is in the desired orientation and this image can then be used to obtain corneal topography data for the patient's eye.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.