ArticleSaudi journal of ophthalmology : official journal of the Saudi Ophthalmological Society
Comprehensive evaluation of oculus pentacam in subclinical keratoconus and clinical keratoconus patients at different stages.
Article in Saudi journal of ophthalmology : official journal of the Saudi Ophthalmological Society. 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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Abstract
purposeTo evaluate and identify the ability of the Oculus Pentacam parameters to distinguish subclinical keratoconus (SCKC) and clinical keratoconus (CKC) at different stages in normal eyes.
methodsSCKC (
resultsThe SCKC group demonstrated a notable decrease in corneal thickness compared with the normal group. Index Surface Variance (ISV) had the highest ability to distinguish SCKC from normal (AUC: 0.897, sensitivity: 78.57%, specificity: 95.74%), followed by Ambrósio-Relational Thickness (ARTmax). ISV and index vertical asymmetry showed perfect discrimination ability to distinguish KC Stage I from normal eyes. Most of the Pentacam parameters had sufficient strength to differentiate between Stage II and normal eyes.
conclusionThe ISV from Pentacam was the most sensitive parameter for detecting SCKC, Stage I KC, and Stage II KC. Pentacam indices related to corneal thickness may be particularly valuable for identifying early signs of corneal ectasia when no abnormalities in topography are observed.
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