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Pupillary examination with infrared consumer videocamera.
J C Fleischhauer1, T Haufschild, B Schröder
1University Eye Clinic, Division of Neuroophthalmology and Strabology, Mittlere Strasse 91, P.O. Box, CH-4012 Basel, Switzerland.
Klinische Monatsblatter Fur Augenheilkunde
|June 22, 2001
Summary
Observing pupillary reactions in the dark is challenging. Two methods, using a skiascope and an infrared video camera, offer reliable and accessible solutions for ophthalmological practices.
Area of Science:
- Ophthalmology
- Medical Imaging
Background:
- Pupillary observation in low-light conditions presents challenges in standard clinical settings.
- Specialized equipment is often lacking in general ophthalmology practices and outpatient clinics.
Purpose of the Study:
- To present two practical methods for observing pupillary reactions in darkness.
- To evaluate the utility of a skiascope and an infrared video camera for pupillary observation.
Main Methods:
- Pupillary reactions were observed using a skiascope/retinoscope with a video camera.
- Infrared observation of pupils was conducted using a consumer digital video camera, with subsequent image extraction.
Main Results:
- The skiascope/retinoscope provides reliable pupillary observation with high contrast in clinical routine.
- The infrared video camera offers excellent visualization of pupillary reflexes in darkness, with easy data transfer and image selection.
Conclusions:
- The skiascope is a readily available and effective tool for pupillary reflex observation in ophthalmology.
- The infrared digital consumer video camera is a sophisticated and affordable tool for documenting pupillary reflexes in darkness.