ArticlePhotodiagnosis and photodynamic therapy2021
The impact of delayed anti-vascular endothelial growth factor treatment for retinal diseases during the COVID-19 lockdown.
Article in Photodiagnosis and photodynamic therapy, 2021. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 6 papers, 2 of them syntheses that pooled it.
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Who cites it
6 citing papers in PubMed, 2 syntheses or guidelines pooled it, 10 citations in OpenAlex.
- The management of neovascular age-related macular degeneration: A systematic literature review of patient-reported outcomes, patient mental health and caregiver burden.Acta ophthalmologica · 2023Pooled it
- Delayed anti-VEGF injections during the COVID-19 pandemic and changes in visual acuity in patients with three common retinal diseases: A systematic review and meta-analysis.Survey of ophthalmologyPooled it
- Visual acuity and retinal thickness outcomes following anti-VEGF therapy in RVO: influence of early vs. delayed treatment.BMC ophthalmology · 2026Observational
- The Burden of Delayed Diabetic Retinopathy Management and Use of Artificial Intelligence-Driven Screening Tools: A Systematic Literature Review.Ophthalmology and therapy · 2026Review
- Observational
- Impact of Coronavirus Disease 2019 on Intravitreal Antivascular Endothelial Growth Factor Injection Rates in Nigerians.Journal of the West African College of SurgeonsArticle
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Authors and funding
8 authors at 2 institutions in 1 country.
Funding
No grant is acknowledged in the PubMed record.
Abstract
purposeTo assess the clinical status of treatment-naive patients who had to delay 3-dose loading anti-VEGF (anti-vascular endothelial growth factor) injections during the COVID-19 lockdown, and to evaluate the effect of the delayed visual acuity treatment on spectral domain optical coherence tomography (SD-OCT) parameters.
methodA total of 55 eyes of 46 patients who were received in the study period participated in this retrospective study, including 28 patients (37 eyes) with diabetic macular edema (DME), 11 patients (11 eyes) with retinal vein occlusion (RVO), and 7 patients (7 eyes) with wet age-related macular degeneration (wet-AMD). The patients were diagnosed with DME, RVO, or wet-AMD in February 2020 and had planned 3-dose loading injections in March, April, and May 2020, but could not be injected due to the COVID-19 pandemic.
resultsFrom the patients' initial examination in February 2020, the mean best corrected visual acuity (BCVA) was 0.72 ± 59 logMAR. After the patients' lockdown visit in July 2020, the mean BCVA was 0.76 ± 64 logMAR. BCVA was stable in 11 eyes, decreased in 12 eyes, and increased in 14 eyes for patients with DME. BCVA was stable in 6, decreased in 3, and increased in 2 eyes for patients with RVO, and it was stable in 4 eyes and decreased in 3 eyes for patients with wet-AMD.
conclusionWe concluded that 6-month delay in treatment of DME patients with non-proliferative DRP had no adverse effect on the visual acuity. However, the loading dose in wet-AMD and RVO patients should be applied as soon as possible.
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