Optical properties of conjunctiva, sclera, and the ciliary body and their consequences for transscleral cyclophotocoagulation

Journal Article · Mon Jul 01 04:00:00 EDT 1996 · Applied Optics

DOI:https://doi.org/10.1364/AO.35.003321· OSTI ID:288991

Nemati, B; Rylander, III, H G; Welch, A J ^[1]

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1. Biomedical Engineering Laser Laboratory, Biomedical Engineering Program, University of Texas at Austin, Austin, Texas 78712 (United States)

A number of recent studies have demonstrated the success of Nd:YAG and diode laser transscleral cyclophotocoagulation in the treatment of advanced glaucoma. Wavelength selection, however, has seldom been based on a clear understanding of the optical properties of tissues involved. The optical properties of conjunctiva, sclera, and the ciliary body adjacent to the limbus were investigated to find an optimal wavelength range for transscleral cyclophotocoagulation. The absorption and scattering coefficients of these layers were determined in the 300{endash}1200-nm wavelength range by the use of a one-dimensional inverse adding{endash}doubling method. The measured optical properties of conjunctiva, sclera, and the ciliary body provide a basis for a comparative analysis of the laser wavelengths used clinically for transscleral cyclophotocoagulation. {copyright} {ital 1996 Optical Society of America.}

• Sponsoring Organization: USDOE
• DOE Contract Number: FG05-91ER61226
• OSTI ID: 288991
• Journal Information: Applied Optics, Journal Name: Applied Optics Journal Issue: 19 Vol. 35; ISSN APOPAI; ISSN 0003-6935
• Country of Publication: United States
• Language: English

Related Subjects

55 BIOLOGY AND MEDICINE
BASIC STUDIES
ABSORPTIVITY
EYES
FLOCCULATION
LASER RADIATION
PHYSICAL RADIATION EFFECTS
SENSE ORGANS DISEASES
THERAPY