SynthesisGraefe's archive for clinical and experimental ophthalmology = Albrecht von Graefes Archiv fur klinische und experimentelle Ophthalmologie2026
The effect of incision site on surgically induced astigmatism in manual small incision cataract surgery: a systematic review and meta-analysis.
Synthesis in Graefe's archive for clinical and experimental ophthalmology = Albrecht von Graefes Archiv fur klinische und experimentelle Ophthalmologie, 2026. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Not yet cited in PubMed.
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The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.
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Authors and funding
8 authors.
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Abstract
purposeTo ascertain the relationship between surgically induced astigmatism (SIA) and manual small incision cataract surgeries (MSICS) performed through superior or temporal incision and quantify the differences that may exist between them.
methodsThe protocol was registered in PROSPERO (CRD42024598386). Literature search was conducted across databases including PubMed, Scopus, Embase, and Web of Science. Studies published from January 1990 to January 2025 that reported surgical outcomes of MSICS with either a temporal or superior incision approach, and described SIA corresponding to the incision site were included. Two independent reviewers assessed the titles and abstracts for eligibility based on the predefined inclusion criteria. Data was extracted onto a standard data extraction form. Risk of bias assessment and study quality reporting were performed using NIH quality assessment tools.
resultsThe initial search yielded 2,014 articles; after removing duplicates, 831 were screened, 53 underwent full-text review, and 28 were included in the meta-analysis. The pooled mean SIA for the superior incision and temporal incisions were 1.10 D (95% CI: 0.94 to 1.26D) and 0.82 D (95% CI: 0.68 to 0.96D), respectively. A higher mean SIA was noted with straight incision compared to frown incision for both superior (1.14 D vs 1.06 D) and temporal approaches (1.02 D vs 0.72 D). The risk of bias assessment indicated that most studies had a low risk of bias with substantial heterogeneity (I2 = 98.7% for superior incision studies and I2 = 97.05% for temporal incision studies), and no publication bias (Egger's test, p = 0.122).
conclusionAround 1D of pre-existing astigmatism can be neutralized by placing an appropriate incision along the steep meridian. In the absence of any pre-operative astigmatism, a frown incision placed on the temporal aspect should be preferred since it produces the least SIA. The influence of sutures on SIA needs to be evaluated further.
Indexed as
Identifiers
41530563What OpenQuestion holds
Registered trials
Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.