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Research advances in the mechanism of subthreshold micropulse laser in diabetic macular edema

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Author:
No author available
Journal Title:
Chinese Journal of Ocular Fundus Diseases
Issue:
1
DOI:
10.3760/cma.j.cn511434-20200114-00022
Key Word:
糖尿病视网膜病变;黄斑水肿;激光凝固术;综述;Diabetic retinopathy;Macular edema;Laser coagulation;Review

Abstract: In recent years, the subthreshold micropulse laser is a kind of laser mode which is characterized by long intermittence. It achieves effective therapeutic effect while minimizes the damage to tissues. At present, it has been used to treat diabetic macular edema. Early studies suggested that the laser selectively acts on retinal pigment epithelial cells to reduce macular edema by regulating the expression of inflammatory biomarkers, growth factors, heat shock proteins and other substances. In recent years, with the development of research, more and more emphasis has been placed on the role of retinal glial cells. Müller cells are also considered as one of the target cells affected by micropulse laser, but there is no evidence of direct or indirect effects of micropulse laser on Müller cells. In the near future, it is expected that we will have more clinical evidence to confirm the target cells of the micropulse laser, which may be further confirmed by in vitro experiments through Müller cells or Müller cells co-cultured with retina pigment epithelium cells, so as to make a more detailed statement on the mechanism of it.

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