May 2005
Volume 46, Issue 13
Free
ARVO Annual Meeting Abstract  |   May 2005
Comparison of Barely Threshold versus Minimal Energy Macular Focal/Grid Argon Laser Photocoagulation for Clinically Significant Macular Edema
Author Affiliations & Notes
  • M. Connor
    Ophthalmology, University Florida, Gainesville, FL
  • H. Vaishnav
    Ophthalmology, University Florida, Gainesville, FL
  • W.C. Lara
    Ophthalmology, University Florida, Gainesville, FL
  • J. Feistman
    Ophthalmology, University Florida, Gainesville, FL
  • S. Kaushal
    Ophthalmology, University Florida, Gainesville, FL
  • R. Ratnakaram
    Ophthalmology, University Florida, Gainesville, FL
  • Footnotes
    Commercial Relationships  M. Connor, None; H. Vaishnav, None; W.C. Lara, None; J. Feistman, None; S. Kaushal, None; R. Ratnakaram, None.
  • Footnotes
    Support  None.
Investigative Ophthalmology & Visual Science May 2005, Vol.46, 3942. doi:
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      M. Connor, H. Vaishnav, W.C. Lara, J. Feistman, S. Kaushal, R. Ratnakaram; Comparison of Barely Threshold versus Minimal Energy Macular Focal/Grid Argon Laser Photocoagulation for Clinically Significant Macular Edema . Invest. Ophthalmol. Vis. Sci. 2005;46(13):3942.

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      © ARVO (1962-2015); The Authors (2016-present)

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Abstract

Abstract: : Purpose:Macular focal/grid argon laser photocoagulation is the standard of care for treatment of clinically significant macular edema (CSME). Laser application can be barely threshold (barely visible resultant photocoagulation spots) or minimal energy (no visible resultant photocoagulation spots). Additionally, the standard follow–up period after the initial treatment is 3 months. METHODS: Retrospective chart review of 14 consecutive patients (18 eyes), who received barely threshold laser treatment (using variable energy as necessary to achieve barely threshold, with 50 micron spot size), were compared to 14 consecutive patients (18 eyes) who received minimal energy laser treatment (using fixed minimal energy of 50mW at 0.1s duration, with 50micron spot size). Presence or absence of CSME was evaluated at the three month follow–up visit. Results: 17% of the minimal energy group and 33% of the barely threshold group showed clinical resolution of macular edema at three months. Conclusions: Barely threshold focal/grid laser treatment was more effective at achieving clinical resolution of CSME at the three month visit than minimal energy laser treatment.

Keywords: retina • laser • diabetic retinopathy 
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