The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Oct. 27, 1998
Filed:
Oct. 29, 1996
Yasunori Ueno, Kawasaki, JP;
Nikon Corporation, Tokyo, JP;
Abstract
Ophthalmologic apparatus and methods are disclosed that permit reliable measurement of the refractive power of an eye both after and during invasive eye surgery. The refractive-power measurement is based on the output of a light sensor when a light flux, projected onto the retina, is reflected from the retina. The apparatus comprises a processor in which data regarding the intraocular pressure of the eye, before surgery and/or during surgery, can be entered. With refractive-power measurements obtained during surgery, the processor is operable to calculate, from the intraocular pressure data, a corrected refractive-power value for the subject eye under normal intraocular pressure conditions.