Cytochemical Study Related to Laser Application.
Final rept. 1 Jul 74-30 Sep 77,
PENNSYLVANIA UNIV PHILADELPHIA SCHOOL OF MEDICINE
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The use of laser has been on the increase in recent years. Protection against hazards created by the use of this new versatile tool in modern science has hence become necessary. The current consensus standard is that of ANSI Z136.1-1973. The Army has also set its own standard, and the Bureau of Radiological Health has also studied the criteria related to laser safety. While guidelines and control procedures have been stipulated by these agencies, fundamental biological effects data are required for evaluating exposure criteria for laser radiations. In the area of research related to the safety of the eye, cornea deserves investigation, since retention of a smooth, transparent cornea is of major importance in maintaining normal vision. The integrity of this surface could very well be challenged particularly for infrared lasers lambda greater than 1.4 microns where the laser energy is absorbed by the cornea or outer ocular media. Clinically, such damage could be checked through visual inspection with a slit lamp. If a permanent visual opacity is produced at the time of the radiation insult or develops as a chronic effect, a corneal transplant may be required. Author
- Lasers and Masers