Observational studyOphthalmic & physiological optics : the journal of the British College of Ophthalmic Opticians (Optometrists)2025
The role of the epithelium in intraocular lens and corneal power calculation.
Observational study in Ophthalmic & physiological optics : the journal of the British College of Ophthalmic Opticians (Optometrists), 2025. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 4 papers.
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
4 citing papers in PubMed.
- The role of the epithelium in intraocular lens and corneal power calculation.Ophthalmic & physiological optics : the journal of the British College of Ophthalmic Opticians (Optometrists) · 2025Observational
- Repeatability of corneal curvature with the MS-39 anterior segment tomographer in a cataractous population.PloS one · 2025Article
- Normative Values on Stromal Curvature, Power and Corneal-Stromal Curvature Ratios From a Hybrid AS-OCT.Clinical & experimental ophthalmologyObservational
- Stromal Curvature, Power and Corneal-Stromal Curvature Ratios From a Hybrid AS-OCT in Eyes With Keratoconus.Clinical & experimental ophthalmologyObservational
Corrections and comments
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Authors and funding
5 authors.
Funding
No grant is acknowledged in the PubMed record.
Abstract
purposeTo investigate the influence of the corneal epithelium on corneal power, particularly in special cases such as post-refractive surgery and keratoconus.
methodsA retrospective observational study. Measurement data were obtained from a high-resolution anterior segment analyser (CSO MS-39). Corneal curvature and power data, as well as surface height data, were organised in a cylindrical coordinate system. Calculations considered one, two and three refractive surfaces, examining the role of epithelial thickness and stromal curvature.
resultsThe effect of the epithelium on corneal power was minimal (<0.1 D) in normal corneas, but it was considerable in keratoconus and post-refractive surgery cases, with differences up to 0.9 D. The effect decreased for larger measurement zones.
conclusionIncorporating epithelial thickness and stromal curvature into corneal power calculations is a crucial next step in accurate corneal power and intraocular lens calculation in eyes with previous refractive surgery or keratoconus. This study highlights the need for advanced diagnostic and calculation methods in complex cases.
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