Thermal Lensing in Ocular Media Exposed to Continuous Wave Near-Infrared Radiation: the 1150-1350-nm Region

Abstract

Abstract. Ocular damage threshold data remain sparse in the continuous wave CW, near-infrared NIR radiation region save for the 1300-nm area that has been investigated in the past several decades. The 1300-nm ocular damage data have yielded unusual characteristics where CW retinal damage was observed in rabbit models, but never in nonhuman primate models. This paper reviews the existing 1300-nm ocular damage threshold data in terms of the fundamental criteria of an action spectrum to assist in explaining laser-tissue effects from near-infrared radiation in the eye. Reviewing the action spectrum criteria and existing NIR retinal lesion data lend evidence toward the significant presence of thermal lensing in ocular media affecting damage, a relatively unexplored mechanism of laser-tissue interaction.

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Document Details

Document Type
Technical Report
Publication Date
Oct 01, 2008
Accession Number
ADA499862

Entities

People

  • Ashley J. Welch
  • Benjamin A. Rockwell
  • David J. Lund
  • Rebecca L. Vincelette
  • Robert J. Thomas

Organizations

  • University of Texas at Austin

Tags

Communities of Interest

  • Biomedical

DTIC Thesaurus Topics

  • Absorption
  • Absorption Coefficients
  • Air Force Research Laboratories
  • Biological Pigments
  • Continuous Waves
  • Electromagnetic Scattering
  • Eye
  • Eye Diseases
  • Infrared Radiation
  • Ionizing Radiation
  • Laser Beams
  • Laser Pulses
  • Laser Safety
  • Military Research
  • Near Infrared Radiation
  • Optics
  • Radiation

Fields of Study

  • Physics

Readers

  • Optical Physics and Photonics.
  • Spectroscopy.
  • Systems Analysis and Design

Technology Areas

  • Directed Energy