A hypothetical therapeutic effect of light peripheral panretinal photocoagulation in neovascular agerelated macular degeneration

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Mansour Ahmad M.; TRIPATHY KOUSHIK; Parodi Maurizio Battaglia

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Journal: MEDICAL HYPOTHESIS, DISCOVERY AND INNOVATION OPHTHALMOLOGY Year:2022 | Volume:11 | Issue:3 Page(s): 137-143

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Title

A hypothetical therapeutic effect of light peripheral panretinal photocoagulation in neovascular agerelated macular degeneration

Author(s)

Mansour Ahmad M. | TRIPATHY KOUSHIK | Parodi Maurizio Battaglia | Issue Writer Certificate

Keywords

age related macular degeneration

wet macular degeneration

laser therapies

VEGFs

vascular endothelial growth factors

choroid neovascularization

retina

Abstract

Background: Vascular endothelial growth factor (VEGF) is a significant modulator of ocular angiogenesis, including that of neovascular age-related macular degeneration (nAMD). Intravitreal injection of anti-VEGF is the benchmark treatment for most retinal vascular diseases, including nAMD, diabetic maculopathy, and macular edema secondary to retinal venous occlusion. Anti-VEGF treatment is a high-frequency, time-consuming, non-cost-effective therapy, especially in countries and regions with limited resources. This treatment is easily restricted, and in practice, maintaining long-term periodic care is challenging for patients. Hypothesis: Light peripheral panretinal photocoagulation (PPRP) is applied in a mild form (barely visible mild light gray mark) anterior to the equator so as not to jeopardize the visual field. PPRP lessens the ischemia that causes neovascularization and decreases the metabolic demand in the peripheral retina. PPRP reduces serum angiopoietin-2 and VEGF levels in patients with type 2 diabetes mellitus with proliferative diabetic retinopathy. We propose using light PPRP to suppress VEGF secretion, aiming to attenuate the VEGF drive and halt choroidal neovascular growth in eyes with nAMD. Our regimen is based on two concepts: first, nAMD is a diffuse or generalized disease that affects the posterior segment,and second, PPRP is very effective in regressing diabetic retinopathy. PPRP has reportedly been successful in cases of macular edema (diabetic or following venous occlusion) resistant to VEGF antagonists. Light PPRP may be used as prophylaxis, adjunctive treatment, or monotherapy in nAMD when intravitreal injections of VEGF antagonists are not feasible. Conclusions: The established light PPRP therapy could be promising as a one-time, cost-effective therapy or prophylaxis in patients with nAMD or at high risk. This proposed modality could be suitable for patients who have injection phobia or prefer a one-time affordable therapy to the long-term monthly visits to retinologists. Future trials are necessary to verify the safety and efficacy of this proposed treatment modality in selected patients with nAMD.

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APA: Copy

Mansour, Ahmad M., TRIPATHY, KOUSHIK, & Parodi, Maurizio Battaglia. (2022). A hypothetical therapeutic effect of light peripheral panretinal photocoagulation in neovascular agerelated macular degeneration. MEDICAL HYPOTHESIS, DISCOVERY AND INNOVATION OPHTHALMOLOGY, 11(3), 137-143. SID. https://sid.ir/paper/1133096/en

Vancouver: Copy

Mansour Ahmad M., TRIPATHY KOUSHIK, Parodi Maurizio Battaglia. A hypothetical therapeutic effect of light peripheral panretinal photocoagulation in neovascular agerelated macular degeneration. MEDICAL HYPOTHESIS, DISCOVERY AND INNOVATION OPHTHALMOLOGY[Internet]. 2022;11(3):137-143. Available from: https://sid.ir/paper/1133096/en

IEEE: Copy

Ahmad M. Mansour, KOUSHIK TRIPATHY, and Maurizio Battaglia Parodi, “A hypothetical therapeutic effect of light peripheral panretinal photocoagulation in neovascular agerelated macular degeneration,” MEDICAL HYPOTHESIS, DISCOVERY AND INNOVATION OPHTHALMOLOGY, vol. 11, no. 3, pp. 137–143, 2022, [Online]. Available: https://sid.ir/paper/1133096/en

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