Lens reflectometry with a CCD video camera and computer image analysis.
Lens reflectometry is a useful method of determining the back scatter of light from the cataractous lens. Making use of normal programmes, the personal computer can be used for the quantitative determination of the lens reflex, as seen in the slit-lamp image. If three different images of the same eye are compared, it appears that the mean variation in the back-scatter readings made by our method is 8.3%.
van den Brom
H J
HJ
University Eye Clinic, Groningen, The Netherlands.
Siertsema
J V
JV
Kooijman
A C
AC
Blanksma
L J
LJ
van Rij
G
G
D000368:Aged; D000369:Aged, 80 and over; D002386:Cataract / Q000175:diagnosis* / Q000503:physiopathology; D006801:Humans; D007091:Image Processing, Computer-Assisted; D007908:Lens, Crystalline / Q000503:physiopathology*; D008027:Light; D008875:Middle Aged; D015203:Reproducibility of Results; D012542:Scattering, Radiation; D014741:Video Recording; D014787:Vision Tests / Q000295:instrumentation / Q000379:methods; D014792:Visual Acuity