The effect of panretinal photocoagulation on confocal laser scanning ophthalmoscopy
            and stereo photographic parameters of optic disk topography in patients with diabetic
            retinopathy

Azevedo, Breno Marques da Silva; Araújo, Rafael Barbosa de; Ciongoli, Marina R; Hatanaka, Marcelo; Preti, Rony Carlos; Monteiro, Mário Luiz Ribeiro; Zacharias, Leandro Cabral

doi:10.5935/0004-2749.20190060

Cited by 1 publication

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“…The laser beam needs to pass through anterior tissues such as the cornea, lens, and vitreous to reach the retina. The possibility of absorbing laser beam energy as it passes through the corneal tissue and damages the endothelial cells is predicted by a decrease in the number of cells, a decrease in the cells' hexagonally, or an increase in the thickness of the central part of the cornea (8)(9)(10). Due to the importance of corneal endothelium cells in maintaining corneal transparency, the laser beam's effect on corneal endothelium cells should be evaluated.…”

Section: Introductionmentioning

confidence: 99%

Panretinal photocoagulation laser in diabetic retinopathy patients

Ostadian¹,

Farrahi²,

Cheraghian³

2021

PJMHS

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Background: It was reported that corneal endothelial cell depletion is a complication of the retinal laser. In this study, the effect of panretinal laser on corneal endothelium was investigated. Method: A group consisting of 47 eyes of 47 Diabetic patients who need a panretinal photocoagulation laser was compared with another group of 47 diabetic patients who did not require a laser. The patient's age was chosen in the range of 50-70 and the tools included Ellex double frequency LASER, Specular microscopy, Pachymetry, and Condense Lens 90. Time course of coefficient of variation, endothelial cell density, hexagonal cells and central corneal thickness were evaluated. ANOVA, Dennett's, and Mann-Whitney test was used to compare the data. P-value of <0.05 was considered statistically significant. Results: We found no significant differences in age, gender between the two groups. There was no significant differences in hexagonal cells, coefficient of variation, endothelial cell density and central corneal thickness between the two groups at any time points. Conclusion: This study suggests that the "panretinal photocoagulation laser" conserves corneal endothelial cells of subsequent damage in diabetic retinopathy patients Keywords: photocoagulation laser, corneal, endothelial cell, argon laser, double frequency laser.

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Section: Introductionmentioning

confidence: 99%