New gonioscopy system using only infrared light.
OBJECTIVE
To describe an infrared gonioscopy system designed to observe the anterior chamber angle under natural mydriasis in a completely darkened room.


METHODS
An infrared light filter was used to modify the light source of the slit-lamp microscope. A television monitor connected to a CCD monochrome camera was used to indirectly observe the angle.


RESULTS
Use of the infrared system enabled observation of the angle under natural mydriasis in a completely darkened room.


CONCLUSIONS
Infrared gonioscopy is a useful procedure for the observation of the angle under natural mydriasis.
Sugimoto
Kota
K
Department of Ophthalmology, Mie University School of Medicine, Tsu, Japan.
Ito
Kunio
K
Matsunaga
Koichi
K
Miura
Katsuya
K
Esaki
Koji
K
Uji
Yukitaka
Y
D000867:Anterior Chamber / Q000000981:diagnostic imaging / Q000473:pathology*; D002924:Ciliary Body / Q000000981:diagnostic imaging / Q000473:pathology; D015812:Glaucoma, Angle-Closure / Q000175:diagnosis*; D006068:Gonioscopy / Q000295:instrumentation* / Q000379:methods*; D006801:Humans; D007259:Infrared Rays; D007498:Iris / Q000000981:diagnostic imaging / Q000473:pathology; D033401:Microscopy, Acoustic; D014129:Trabecular Meshwork / Q000000981:diagnostic imaging / Q000473:pathology*