眼科におけるサーモグラフィ的研究

Thermography of the Ocular Region

緒言

　医用赤外線カメラは1957年米国で開発実用化されて以来，各臨床分野で用いられ，特に近年の赤外線工学・電子工学の進歩による器械の性能の向上とともに，その診断効果が評価されるようになつた，この赤外線カメラによる温度の分布状態を図または写真などの像にあらわして研究する方法が，サーモグラフィ（熱像法と訳される^1））と呼ばれるものである。赤外線サーモグラフィの利点としては，

　①非接触的である。

Thermographic findings of the eye and the periocular region are described. An infrared camera made by Canon (CT-4A) was used throughout.

In the thermogram of the normal eye, the hottest area was located in the medial bulbar conjunctiva near the canthus and the coldest area was located in the center of the cornea. The difference in temperature between the two areas was about 0.8℃.

The temperature of the surface center of soft or hard contact lens worn on the eye was cooler than that of untouched cornea.

In a case with posterior uveitis, the whole surface of the eyeball was remarkably hyper-thermic.