Automated retinal robotic laser system

S. F. Barrett, C. H.G. Wright, M. R. Jerath, R. S. Lewis, B. C. Dillard, H. G. Rylander, A. J. Welch

Research output: Contribution to journalArticlepeer-review

2 Scopus citations


Researchers at the University of Texas and the USAF Academy have worked toward the development of a retinal robotic laser system. The overall goal of this ongoing project is to precisely place and control the depth of laser lesions for the treatment of various retinal diseases such as diabetic retinopathy and retinal tears. Separate low speed prototype subsystems have been developed to control lesion depth using lesion reflectance feedback parameters and lesion placement using retinal vessels as tracking landmarks. Both subsystems have been successfully demonstrated in vivo on pigmented rabbits using an argon continuous wave laser. Recent efforts have concentrated on combining the two subsystems into a single prototype capable of simultaneously controlling both lesion depth and placement. We have designated this combined system CALOSOS for Computer Aided Laser Optics System for Ophthalmic Surgery. Following the dual-use concept, this system is being adapted for clinical use as a retinal treatment system as well as a research tool for military laser-tissue interaction studies.

Original languageEnglish
Pages (from-to)89-94
Number of pages6
JournalBiomedical Sciences Instrumentation
StatePublished - 1995


  • Feedback control
  • Photocoagulation
  • Retina
  • Retinal lesions
  • Retinal tracking


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