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Intravitreal melatonin for the prevention of radiation retinopathy: a step beyond bevacizumab.
Int J Radiat Biol
January 2025
Department of Radiation Oncology, Faculty of Medicine, Hacettepe University, Ankara, Turkey.
Purpose: Intravitreal bevacizumab has been utilized to mitigate radiation retinopathy, yet the potential role of intravitreal melatonin for its prevention remains unexplored. This study aims to evaluate and compare the efficacy of intravitreal melatonin and bevacizumab in preventing radiation retinopathy in an experimental animal model.
Materials And Methods: Twelve healthy male New Zealand white rabbits ( = 24 eyes) received a single 3000 cGy irradiation dose in both eyes.
The Effects of Anti-Vascular Endothelial Growth Factor Loading Injections on Retinal Microvasculature in Diabetic Macular Edema.
Transl Vis Sci Technol
December 2024
Department of Ophthalmology, Kyung Hee University Medical Center, Kyung Hee University, Seoul, Korea.
Purpose: To evaluate changes in the retinal microvasculature using widefield swept-source optical coherence tomography angiography (SS-OCTA) following three anti-vascular endothelial growth factor (anti-VEGF) loading injections for diabetic macular edema (DME).
Methods: Thirty-four treatment-naïve patients with DME received an initial three loading injections, followed by injections on an as-needed basis. Macular ischemia was evaluated based on the foveal avascular zone (FAZ) area, perfusion density, and vessel density on a 3 × 3-mm SS-OCTA image.
Early postoperative bevacizumab for preventing neovascular glaucoma in phacovitrectomy for proliferative diabetic retinopathy.
Sci Rep
January 2025
Department of Ophthalmology, Hanyang University Guri Hospital, Hanyang University College of Medicine, Gyongchun-ro 153, Guri, Gyeonggi-do, South Korea.
To evaluate the effectiveness of postoperative intravitreal bevacizumab (IVB) in preventing neovascular glaucoma (NVG) and identify associated risk factors in patients with proliferative diabetic retinopathy (PDR) undergoing phacovitrectomy. Patients with PDR who underwent phacovitrectomy were enrolled and categorized into two subgroups based on their postoperative treatment regimen: one group received IVB within 2 months following phacovitrectomy (Group 1); the other did not receive IVB during this period (Group 2). A comparative analysis evaluated the distinguishing characteristics of the two groups after 1:1 propensity score matching.
View Article and Find Full Text PDFHow intravitreal anti-vascular endothelial growth factor initial dosing impacts patient outcomes in diabetic macular oedema.
BMC Ophthalmol
December 2024
Genentech, Inc, South San Francisco, CA, USA.
Background: Intravitreal anti-vascular endothelial growth factor (VEGF) treatment for diabetic macular oedema (DME) may begin with several initial monthly doses. Characteristics, treatment patterns and outcomes were compared for eyes with DME that did and did not receive such initial doses.
Methods: This was a retrospective database study using American Academy of Ophthalmology Intelligent Research in Sight Registry data (01/01/15-31/12/20; index period).
Outcomes after unilateral bevacizumab treatment for infants with asymmetric retinopathy of prematurity.
J AAPOS
December 2024
Department of Ophthalmology, Emory University, Atlanta, Georgia.
In this retrospective study of asymmetric retinopathy of prematurity (ROP) cases treated with unilateral intravitreal bevacizumab (IVB), half of the treated patients did not require further IVB, whereas the other half required sequential IVB at a mean of 12 days after initial treatment.
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