Photographic and other uses of the QuadrAspheric Fundus Lens.
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.
Jones
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Optometry Clinic, Veterans Administration Medical Center, Albuquerque, NM 87108.
D005654:Fundus Oculi; D006801:Humans; D007909:Lenses; D055095:Optics and Photonics; D010781:Photography / Q000379:methods*; D012164:Retinal Diseases / Q000473:pathology