April 2009
Volume 50, Issue 13
ARVO Annual Meeting Abstract  |   April 2009
In Human Functional Analysis of Different Clinical Grades of Retinal Coagulation Lesions
Author Affiliations & Notes
  • R. Peroni
    CBEO, Araraquara, Brazil
  • J. A. Cardillo
    CBEO, Araraquara, Brazil
    Hospital de Olhos de Araraquara, Araraquara, SP, Brazil
  • A. Daré
    CBEO, Araraquara, Brazil
  • D. Lavinsky
    Universidade Federal de São Paulo UNIFESP/EPM, São Paulo, Brazil
  • C. E. Moreira
    CBEO, Araraquara, Brazil
  • Footnotes
    Commercial Relationships  R. Peroni, None; J.A. Cardillo, None; A. Daré, None; D. Lavinsky, None; C.E. Moreira, None.
  • Footnotes
    Support  None.
Investigative Ophthalmology & Visual Science April 2009, Vol.50, 216. doi:
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    • Get Citation

      R. Peroni, J. A. Cardillo, A. Daré, D. Lavinsky, C. E. Moreira; In Human Functional Analysis of Different Clinical Grades of Retinal Coagulation Lesions. Invest. Ophthalmol. Vis. Sci. 2009;50(13):216.

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

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Purpose: : To assess the microperimetry changes on normal human retina of retinal photocoagulation lesions of various clinical grades.

Methods: : A 532-nm diode laser was used to irradiate the temporal retina of 20 patients undergoing photocoagulation for proliferative diabetic retinopathy and the resulting lesions immediately graded according to its clinical appearance from an invisible or mild gray to a moderate to severe white. Microperimetry was performed at the targeted area prior and at 1 and 4-week post laser irradiation.

Results: : Showing a parallel pattern of response for all patients involved in this investigation, invisible and light to light-moderated burns caused no detectable changes on the microperimetry assessment. On the contrary, moderate to intense lesions caused a sustained significant decrease in retina sensitivity.

Keywords: laser • perimetry • diabetic retinopathy 

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