Related Experiment Video
Updated: Aug 8, 2026

Quantitative Fundus Autofluorescence for the Evaluation of Retinal Diseases
Published on: March 11, 2016
Photographic and other uses of the QuadrAspheric Fundus Lens
1Optometry Clinic, Veterans Administration Medical Center, Albuquerque, NM 87108.
Abstract:
The new QuadrAspheric Fundus Lens by Volk Optical is an ultra wide field lens that has many uses as a specialty lens. Photography can be accomplished through the lens but light reflexes are always present to a greater or lesser extent. Techniques to eliminate as many of the unwanted reflexes as possible are discussed. The lens also is very useful when the patient's pupil is not widely dilated and the clinician can even obtain a view through an undilated pupil (though this is difficult to achieve). Lastly, proper cleaning procedures are presented.

