EP 1082048 A1 20010314 - SCANNING LASER OPHTHALMOSCOPE FOR MICROPHOTOCOAGULATION WITH MINIMAL OPTICAL ABERRATIONS
Title (en)
SCANNING LASER OPHTHALMOSCOPE FOR MICROPHOTOCOAGULATION WITH MINIMAL OPTICAL ABERRATIONS
Title (de)
OPHTALMOSKOP MIT LASERABTASTUNG FÜR MIKROKOAGULATION MIT MINIMALEN OPTISCHEN ABERRATIONEN
Title (fr)
OPHTALMOSCOPE LASER A BALAYAGE POUR MICROPHOTOCOAGULATION, PRESENTANT UN MINIMUM D'ABERRATIONS OPTIQUES
Publication
Application
Priority
- US 9909911 W 19990507
- US 7523998 A 19980509
- US 11876798 A 19980718
Abstract (en)
[origin: WO9958047A1] A combination of a confocal scanning laser ophthalmoscope and external laser sources (52, 54) is used for microphotocoagulation of the retina or the measurement of wavefront aberrations of the eye optics. An opto-mechanical linkage device (100) with beamsplitter (56) allows independent positioning of the pivot point (16) of the lasers of a scanning laser ophthalmoscope and the pivot point of non-scanning external laser beams. A similar pivot point location is used to minimize wavefront aberrations and to enable precise focusing of a therapeutic laser beam (52) on the retina. The pivot point of an external diagnostic laser beam (54) is systematically moved across the anatomical pupil when wavefront aberrations are to be measured. One confocal detection pathway of the scanning laser ophthalmoscope is used to localize fiducial landmarks on the retina. A second synchronized detection pathway is used to characterize the spot on the retina that is produced by the external laser beam. External laser beams (52, 54) can be polarized to eliminate specular reflections, and pulsed in anti-aliased fashion with its own confocal detection.
IPC 1-7
IPC 8 full level
A61B 3/12 (2006.01); A61F 9/008 (2006.01); A61B 3/107 (2006.01); A61B 17/00 (2006.01)
CPC (source: EP)
A61B 3/1025 (2013.01); A61F 9/008 (2013.01); A61F 9/00821 (2013.01); A61B 2017/00694 (2013.01); A61F 2009/00846 (2013.01); A61F 2009/00863 (2013.01); A61F 2009/0088 (2013.01)
Citation (search report)
See references of WO 9958047A1
Designated contracting state (EPC)
DE FR GB
DOCDB simple family (publication)
DOCDB simple family (application)
US 9909911 W 19990507; EP 99921721 A 19990507