ArticleJournal of ophthalmology2016
Rotating Scheimpflug Imaging Indices in Different Grades of Keratoconus.
Article in Journal of ophthalmology, 2016. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 21 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.
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Who cites it
21 citing papers in PubMed.
- Establishing a precision reference benchmark for corneal epithelial aberration measurements using a new hybrid device across keratoconus stages.Eye and vision (London, England) · 2026Article
- Diagnosis of forme fruste keratoconus with scheimpflug photography in Ghanaian patients.BMC ophthalmology · 2024Article
- Correlation between Corneal Volume and Corneal Biomechanics and Corneal Volume Significance in Staging and Diagnosing Keratoconus.Journal of ophthalmology · 2024Article
- Diagnostic accuracy of different keratoconus detection indices of pentacam in paediatric eyes.Eye (London, England) · 2023Article
- Comparative analysis of the morphological and biomechanical properties of normal cornea and keratoconus at different stages.International ophthalmology · 2021Article
- Keratoconus Diagnostic and Treatment Algorithms Based on Machine-Learning Methods.Diagnostics (Basel, Switzerland) · 2021Article
- Accuracy of the posterior corneal elevation values of Pentacam HR from different reference surfaces in early ectasia diagnosis.International ophthalmology · 2021Article
- Article
- Simplifying and understanding various topographic indices for keratoconus using Scheimpflug based topographers.Indian journal of ophthalmology · 2020Review
- Morphogeometric analysis for characterization of keratoconus considering the spatial localization and projection of apex and minimum corneal thickness point.Journal of advanced research · 2020Article
- Tomography-based definition of keratoconus for Down syndrome patients.Eye and vision (London, England) · 2020Article
- Assessment of the Association between In Vivo Corneal Morphogeometrical Changes and Keratoconus Eyes with Severe Visual Limitation.Journal of ophthalmology · 2019Article
- Pentacam® Corneal Tomography for Screening of Refractive Surgery Candidates: A Review of the Literature, Part I.Medical hypothesis, discovery & innovation ophthalmology journal · 2019Review
- New corneal assessment index from the relational thickness and other OCULUS values (CAIRO Index).Clinical ophthalmology (Auckland, N.Z.) · 2018Article
- Pentacam HR Indices Variation in Normal Corneas with Different Corneal Thickness.Journal of ophthalmology · 2018Article
- Effect of Age on Pentacam Keratoconus Indices.Journal of ophthalmology · 2018Article
- Keratoconus Detection Based on a New Corneal Volumetric Analysis.Scientific reports · 2017Article
- Article
- Evaluation of Choroidal Vascularity Index in Keratoconus Patients: Does Choroidal Vascularity Change in Keratoconus?Journal of current ophthalmologyArticle
- Comparing Pentacam HR Screening Indices in Different Normal Corneal Thicknesses among Refractive Surgery Candidates.Journal of current ophthalmologyArticle
Corrections and comments
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Authors and funding
4 authors.
Funding
No grant is acknowledged in the PubMed record.
Abstract
Purpose. To evaluate accuracy of various Keratoconus (KC) screening indices, in relation to Topographic Keratoconus (TKC) grading. Setting. Al Watany Eye Hospital, Cairo, Egypt. Methods. Data of 103 normal (group 1) and 73 KC eyes (group 2), imaged by Pentacam (branded as Allegro Oculyzer), were analysed. Group 2 was divided into 2a: 14 eyes (TKC = 1, early KC), 2b: 25 eyes (TKC = 1 to 2 or 2, moderate KC), and 2c: 34 eyes (TKC = 2 to 3 up to 4, severe KC). Participants were followed up for six years to confirm diagnosis. Area under the receiver operating characteristic curve (AUROC) was calculated for evaluated curvature, elevation, and pachymetry indices with various reference shapes at different diameters. Results. When comparing normal to KC eyes, ten indices had significantly higher AUROC. Only five of them had significantly higher AUROC in early KC compared to normal corneas: Pachymetry Progression Index- (PPI-) Maximum (Max), Ambrósio's Relational Thickness- (ART-) Max, PPI-Max minus PPI-Minimum (Min), central corneal thickness (CCT), and diagonal decentration of thinnest point from the apex (AUROC = 0.690, 0.690, 0.687, 0.683, and 0.674, resp.). Conclusion. Generally, ten pachymetry and elevation-based indices had significantly higher AUROC. Five indices had statistically significant high AUROC when comparing early KC to normal corneas.
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Registered trials
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