EP 2205960 A1 20100714 - METHOD AND DEVICE FOR THE EXACT REFLECTOMETRIC DETERMINATION OF THE OPTICAL DENSITY OF THE MACULAR PIGMENT XANTHOPHYLL ON THE OCULAR FUNDUS WITHOUT INTERFERENCE BY STRAY LIGHT
Title (en)
METHOD AND DEVICE FOR THE EXACT REFLECTOMETRIC DETERMINATION OF THE OPTICAL DENSITY OF THE MACULAR PIGMENT XANTHOPHYLL ON THE OCULAR FUNDUS WITHOUT INTERFERENCE BY STRAY LIGHT
Title (de)
VERFAHREN UND VORRICHTUNG ZUR GENAUEN REFLEKTOMETRISCHEN BESTIMMUNG DER OPTISCHEN DICHTE DES MAKULAPIGMENTS XANTHOPHYLL AM AUGENHINTERGRUND OHNE BEEINFLUSSUNG DURCH STÖRLICHT
Title (fr)
PROCÉDÉ ET DISPOSITIF DE DÉTERMINATION RÉFLECTOMÉTRIQUE PRÉCISE DE LA DENSITÉ OPTIQUE DU PIGMENT MACULAIRE XANTHOPHYLLE SUR LE FOND DE L' IL SANS INFLUENCE PAR DE LA LUMIÈRE PARASITE
Publication
Application
Priority
- EP 2008008315 W 20081001
- DE 102007047300 A 20071002
Abstract (en)
[origin: WO2009046912A1] 1. A method and device for the exact reflectometric determination of the optical density of the macular pigment xanthophyll on the ocular fundus without interference by stray light, particularly by individual light scattering in the front eye media 2.1 The aim of the invention is to be able to reflectometrically determine also the optical density of the macular pigment xanthophyll on the ocular fundus without interference by stray light, particularly individually interfering stray light of the front eye media. 2.2 According to the invention, in addition to measuring the reflection light from illuminated regions of the ocular fundus, the ocular fundus is only partially illuminated and the intensity of the stray light is measured from the non-illuminated region. Said measurement value serves as a corrective variable for calculating the optical density of the macular pigment. 2.3 The invention is used in the field of ophthalmology.
IPC 8 full level
G01N 21/64 (2006.01); A61B 3/12 (2006.01); A61B 3/13 (2006.01); A61B 3/15 (2006.01); G02B 21/06 (2006.01)
CPC (source: EP)
A61B 3/12 (2013.01); A61B 3/14 (2013.01); G02B 21/082 (2013.01)
Citation (search report)
See references of WO 2009046912A1
Designated contracting state (EPC)
AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MT NL NO PL PT RO SE SI SK TR
Designated extension state (EPC)
AL BA MK RS
DOCDB simple family (publication)
DE 102007047300 A1 20090409; EP 2205960 A1 20100714; WO 2009046912 A1 20090416
DOCDB simple family (application)
DE 102007047300 A 20071002; EP 08802732 A 20081001; EP 2008008315 W 20081001