Fundus camera systems: a comparative analysis.
Retinal photography requires the use of a complex optical system, called a fundus camera, capable of illuminating and imaging the retina simultaneously. The patent literature shows two design forms but does not provide the specifics necessary for a thorough analysis of the designs to be performed. We have constructed our own designs based on the patent literature in optical design software and compared them for illumination efficiency, image quality, ability to accommodate for patient refractive error, and manufacturing tolerances, a comparison lacking in the existing literature.
DeHoog
Edward
E
Biomedical Engineering Program, University of Arizona, 1657 E. Helen St., Tucson, Arizona 85721, USA. dehooge@u.arizona.edu
Schwiegerling
James
J
D004867:Equipment Design; D005123:Eye; D005451:Fluorescein Angiography / Q000295:instrumentation / Q000379:methods; D005654:Fundus Oculi; D006801:Humans; D007091:Image Processing, Computer-Assisted; D009010:Monte Carlo Method; D009887:Ophthalmoscopy / Q000379:methods*; D055096:Optical Devices; D055095:Optics and Photonics; D012030:Refractive Errors; D012160:Retina / Q000473:pathology; D012984:Software