ArticleClinical ophthalmology (Auckland, N.Z.)2020
Repeatability of OCT-Based versus Scheimpflug- and Reflection-Based Keratometry in Patients with Hyperosmolar and Normal Tear Film.
Article in Clinical ophthalmology (Auckland, N.Z.), 2020. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 17 papers.
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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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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
17 citing papers in PubMed, 23 citations in OpenAlex.
- Effect of Artificial Tears on Preoperative Keratometry and Refractive Precision in Cataract Surgery.Clinical ophthalmology (Auckland, N.Z.) · 2024Trial
- The Significance of Dry Eye Signs on Preoperative Keratometry Measurements in Patients Scheduled for Cataract Surgery.Clinical ophthalmology (Auckland, N.Z.) · 2024Trial
- Premium Intraocular Lens Implantation After Laser Vision Correction: An Updated Narrative Review of Biometry, IOL Selection, Visual Outcomes, and Clinical Management.Journal of clinical medicine · 2026Review
- Repeatability of keratometry depending on tear film osmolarity.Acta ophthalmologica · 2026Article
- Reproducibility and accuracy of corneal curvature measurements in patients with and without dry eye: a device-based study.Frontiers in medicine · 2025Article
- Comparative Analysis of the Osmoprotective Effects of Daily Disposable Contact Lens Packaging Solutions on Human Corneal Epithelial Cells.Clinical ophthalmology (Auckland, N.Z.) · 2024Article
- Comparison of corneal measurements in normal and keratoconus eyes using Anterior Segment Optical Coherence Tomography (AS-OCT) and Pentacam HR topographer.BMC ophthalmology · 2023Observational
- Refractive Predictability and Biometry Agreement of a Combined Swept Source Optical Coherence and Reflectometry Biometer Compared to an Optical Low Coherence Reflectometry Biometer and an SS-OCT Biometer.Clinical ophthalmology (Auckland, N.Z.) · 2023Article
- Measurements of Anterior and Posterior Corneal Curvatures with OCT and Scheimpflug Biometers in Patients with Low Total Corneal Astigmatism.Journal of clinical medicine · 2022Article
- Corneal irregularity and visual function using anterior segment optical coherence tomography in TGFBI corneal dystrophy.Scientific reports · 2022Article
- Comparison of Total Corneal Astigmatism between IOLMaster and Pentacam.BioMed research international · 2022Article
- Anterior-Segment Swept-Source Ocular Coherence Tomography and Scheimpflug Imaging Agreement for Keratometry and Pupil Measurements in Healthy Eyes.Journal of clinical medicine · 2021Article
- Current Developments in Corneal Topography and Tomography.Diagnostics (Basel, Switzerland) · 2021Review
- Comparison of two novel swept-source optical coherence tomography devices to a partial coherence interferometry-based biometer.Scientific reports · 2021Article
- Refractive Precision of Ray Tracing IOL Calculations Based on OCT Data versus Traditional IOL Calculation Formulas Based on Reflectometry in Patients with a History of Laser Vision Correction for Myopia.Clinical ophthalmology (Auckland, N.Z.) · 2021Article
- Impact of tear film stability on corneal refractive power measurement and surgical planning for cataract.Advances in ophthalmology practice and researchArticle
- The impact of posterior corneal astigmatism on the surgical planning of toric multifocal intraocular lens implantation.Advances in ophthalmology practice and researchArticle
Corrections and comments
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Authors and funding
4 authors at 2 institutions in 1 country.
Funding
No grant is acknowledged in the PubMed record.
Abstract
purposeTo compare the repeatability of keratometry between different instruments in patients with hyperosmolar tear film and a control group. PATIENTS AND
methodsSubjects with tear-film osmolarity of 316 mOsm/L or more in either eye or 308 m/Osm/L or lower in both eyes were assigned to the hyperosmolar and the control group, respectively. The test eye was the eye with higher osmolarity in the hyperosmolar group and randomly chosen in the control group. The repeatability of keratometry was compared between a reflectometry device (Haag-Streit Lenstar 900), a Scheimpflug device (Oculus Pentacam HR) and two optical coherence tomography (OCT) devices (Tomey Casia SS-1000 and Heidelberg Anterion), based on two measurements from each device.
resultsThe study included 94 subjects (31 hyperosmolar and 63 controls). Both OCT devices had higher mean differences of average simulated keratometry (SimK) vs the Lenstar in both groups, though all differences in means were <0.07 D. The Casia had the highest mean vector difference of SimK astigmatism in the control group (differences in means <0.11 D). These differences of the instruments were statistically significant (
conclusionBoth OCT devices show more variability in average SimK and the Casia more variability in SimK astigmatism compared to the Lenstar and the Pentacam. However, the results suggested that repeatability was not influenced by osmolarity.
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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.