Measurement of anterior chamber diameter and biometry of anterior segment by Scheimpflug slitlamp photography.
Twenty-eight fresh donor eyes (Georgia Lions Eye Bank) ranging in age from four months to 87 years were used for an in vitro study to determine the feasibility of obtaining accurate anterior chamber diameter measurements with our Scheimpflug ultraviolet-visible slitlamp densitography apparatus. The in vivo study was performed on 16 hybrid monkeys (of varying age). These data were within 0.1 mm of measurements obtained with a modified paracentesis needle specially designed to obtain such measurements (sensitivity within 0.01 mm). The results of the foregoing study demonstrate that the Scheimpflug slitlamp photographic analyses can provide an accurate measurement of the anterior chamber diameter without entering the globe surgically. This will enable the surgeon to determine the diameter and order an anterior chamber IOL of a specified size prior to surgery. We have devised an automated program to analyze the negatives and provide direct anterior chamber diameter measurements.
D000328:Adult; D000368:Aged; D000818:Animals; D000867:Anterior Chamber / Q000033:anatomy & histology*; D000869:Anterior Eye Segment / Q000033:anatomy & histology*; D002675:Child, Preschool; D005260:Female; D000882:Haplorhini; D006801:Humans; D007223:Infant; D007910:Lenses, Intraocular; D008297:Male; D010781:Photography / Q000379:methods*; D014466:Ultraviolet Rays