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Brooks Air Force Base, TX

Protocol - 2003-16 - Ocular Damage Thresholds for Laser Extended Source Retinal Exposures

 

Title:

Ocular Damage Thresholds for Laser Extended Source Retinal Exposures

Research Category:

N1: Physical Protection

FY: 2003 Funding (in dollars):

150,000

Responsible Organization:	AIR FORCE RESEARCH LAB/BROOKS
Primary Contact:	Public Affairs Office
City:	Brooks City-Base
State:	TX
Zip:	78235-5116

Performing Organization:	See Responsible Organization Information
City:
State:
Zip:

Keywords:

LABORATORY ANIMALS LASER RETINA OPTICAL-SWITCH THRESHOLD LESION EYE VISION

Objective:

To quantitate the relationship between laser damage tThe proliferation of lasers on the modern battlefield and in routine military operations has led to increasing probabilities of accidental or adversarial laser eye exposures. The risk of laser-induced ocular damage is further increased for personnel using binoculars or other magnifying viewing sights. Extensive R&D has been conducted on laser protective devices (ocular switches), which are liquid cells which, when inserted in viewing sights, temporarily become less transmissive and more scattering when struck by a laser pulses, preventing much of the laser energy from entering the eye. The objective of the work is to collect retinal damage threshold data for the specific retinal image profiles resulting from passage of a laser beam through a protective optical switch. The data are essential for validating the theoretical model predictions of degree of eye damage and to generalize those predictive models without the need for further animal experimentation.

Approach:

Threshold-level laser eye exposures (minimal tissue damage) will be delivered to the eyes of research subjects (rhesus monkeys) and retinal damage thresholds will be determined for the specific retinal image profiles generated with the use of optical limiter switches.

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Rats, mice, birds, amphibians and other animals have been excluded from coverage by the Animal Welfare Act. Therefore research facility reports do not include these animals. As a result of this situation, a blank report, or one with few animals listed, does not mean that a facility has not performed experiments on non-reportable animals. A blank form does mean that the facility in question has not used covered animals (primates, dogs, cats, rabbits, guinea pigs, hamsters, pigs, sheep, goats, etc.). Rats and mice alone are believed to comprise over 90% of the animals used in experimentation. Therefore the majority of animals used at research facilities are not even counted.