Appropriate laser warning signs must be in position when the laser is in use. Access to the theater should be controlled typically being restricted to one door. The eye is the most vulnerable organ to laser radiation. The increased hazard to the eye from visible and near infrared lasers is a direct result of the eye's imaging process. The focusing effect of the cornea and lens of the eye will concentrate laser energy up to 100,000 times.
Eye protection is available from many different manufacturers today.
Users should ensure that the optical density of their protective eyewear offers adequate protection for the power of the laser in use. The protective eyewear should offer side protection to ensure no direct path for laser energy to the eye. Doctors cannot see natural colors or skin tones. Use of a restraining head strap is recommended. No side protection is offered by conventional frames.