Observational studyInternational ophthalmology2022
The effect of limbal autograft location at primary pterygium excision on anterior and posterior corneal astigmatism: a comparative prospective study.
Observational study in International ophthalmology, 2022. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 2 papers, 1 of them a synthesis that pooled it.
What it found
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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.
The trial behind it
Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.
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Who cites it
2 citing papers in PubMed, 1 synthesis or guideline pooled it, 7 citations in OpenAlex.
- Treatment of Pterygium on the Refractive Errors: A Systematic Review.Korean journal of ophthalmology : KJO · 2025Pooled it
- The effect of pterygium on front and back corneal astigmatism and aberrations in natural-light and low-light conditions.BMC ophthalmology · 2024Article
Corrections and comments
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Authors and funding
3 authors at 1 institution in 1 country.
Funding
No grant is acknowledged in the PubMed record.
Abstract
purposeThe aim of the study is to evaluate the effect of limbal autograft location on corneal astigmatism in inferior and superior conjunctival autografted pterygium surgery.
methodsPatients were divided into 2 groups as diagnosed with primary pterygium and planned to receive surgical treatment. Pterygium surgery was performed on 25 patients with superior and 25 patients with inferior limbal autograft who have similar epidemiologic features. Cornea anterior and posterior surface keratometry (K) 1, K2, Kmax, peripheric radius (Rper) (the mean radius of curvature of the 7.0-9.0 mm ring area), refractive astigmatism and axis values, were examined. Corneal irregularity indices were the index of surface variance (ISV), index of vertical asymmetry (IVA, mm), index of height asymmetry (IHA, μm), index of height decentration (IHD, μm). The data were compared pre- and postoperative and the effect of graft location on results was evaluated.
resultsK1 which is from the values of the cornea front face has risen after surgery both of superior and inferior groups (p = 0.011). However, no postoperative significant difference was detected in terms of the change. Otherwise, both groups have changed regarding astigmatism and Rper (p < 0.001), but no postoperative significant difference was found in terms of the change. There were not any differences between groups regarding the changes of postoperative back face values. Although there were significant decreases in ISV, IVA, and IHD values in both groups in terms of all corneal surface indices, there was no significant difference between the lower and upper groups in terms of postoperative results (p > 0.05).
conclusionThe effects of pterygium surgery with limbal autograft provide significant improvement on corneal astigmatism. However, we think that the location of the conjunctiva has no effect, but in cases where the bulbar conjunctiva needs to be preserved or cannot be used, the choice of the lower bulbar conjunctiva can achieve successful results.
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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.