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SOLID-STATE LASER SOURCE FOR CORNEAL ABLATION

Award Information
Agency: Department of Health and Human Services
Branch: N/A
Contract: N/A
Agency Tracking Number: 16599
Amount: $500,000.00
Phase: Phase II
Program: SBIR
Solicitation Topic Code: N/A
Solicitation Number: N/A
Timeline
Solicitation Year: N/A
Award Year: 1993
Award Start Date (Proposal Award Date): N/A
Award End Date (Contract End Date): N/A
Small Business Information
45 Winthrop Street
Concord, MA 01742
United States
DUNS: N/A
HUBZone Owned: No
Woman Owned: No
Socially and Economically Disadvantaged: No
Principal Investigator
 Moulton, Peter F
 Principal Investigator
 (508) 371-2299
Business Contact
 1 R43 EY09154-01
Phone: () -
Research Institution
N/A
Abstract

CORNEAL SCULPTING IS A NEW TECHNIQUE THAT USES AN ULTRAVIOLET LASER TO CORRECT REFRACTIVE VISION DISORDERS BY ABLATING A PORTION OF THE CORNEA. CURRENT CLINICAL SYSTEMS USE THE ARF EXCIMER LASER OPERATING AT 193 NM, WHICH PRODUCES SHARPLY DEFINED CORNEAL INCISIONS WITH MINIMAL DAMAGE TO ADJACENT TISSUE. THE DEVELOPMENT OF A SOLID-STATE ALTERNATIVE TO THE EXCIMER IS NOW POSSIBLE DUE TO ADVANCES IN THE GROWTH OF NON-LINEAR CRYSTALS WITH FAVORABLE UV PROPERTIES. BY USING A TUNABLE PULSED TI:SAPPHIRE LASER AS THE PUMP SOURCE, A WIDE RANGE OF UV WAVELENGTHS CAN BE GENERATED VIA NON-LINEAR FREQUENCY CONVERSION. AS PART OF THE PHASE I EFFORT, THE NEAR-IR OUTPUT OF A PULSED TI:SAPPHIRE LASER WILL BE CONVERTED TO THE 205-225 NM REGION VIA FREQUENCY QUADRUPLING IN TWO BETA-BARIUM BORATE CRYSTALS. THE OBJECTIVE OF THIS WORK IS TO DETERMINE WHETHER THE QUALITY OF THE CORNEAL INCISIONS MADE USING WAVELENGTHS RANGING FROM 205-225 NM COMPARE FAVORABLY WITH THOSE MADE BY THE 193 NM EXCIMER. IF A WAVELENGTH WITHIN THIS RANGE DOES PROVE TO BE USEFUL FOR CORNEAL ABLATION, THE LONG TERM GOAL OF THIS PROGRAM WOULD BE TO DEVELOP A CLINICALLY QUALIFIED SOLID-STATE LASER FOR REFRACTIVE SURGERY.

* Information listed above is at the time of submission. *

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