ArticleBMC ophthalmology2025
Biometry and keratometry measurements after intracorneal ring segment implantation in keratoconus patients: a pilot comparison between Pentacam AXL and IOL Master 700.
Article in BMC ophthalmology, 2025. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 3 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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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
3 citing papers in PubMed.
- Agreement between swept-source OCT-based and Scheimpflug-based optical biometers in myopic children.International journal of ophthalmology · 2026Article
- Challenges in Biometry and Intraocular Lens Power Calculations in Keratoconus: A Review.Diagnostics (Basel, Switzerland) · 2025Review
- Factors affecting the refractive error after cataract surgery.International ophthalmology · 2025Review
Corrections and comments
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Authors and funding
5 authors.
Funding
No grant is acknowledged in the PubMed record.
Abstract
purposeThis pilot study aimed to compare ocular biometric data obtained from Pentacam AXL and IOL Master 700 in patients with keratoconus who underwent intracorneal ring segment (ICRS) implantation.
methodIn this pilot study, patients who underwent ICRS implantation (between 2013 and 2021) at Khalili Hospital were assessed using pre-surgical examinations and biometry and keratometry measurements performed with the Pentacam AXL and the IOLMaster 700. The devices were used in random order, and measurements were conducted by expert operators who were blinded to each other's results. Data were analyzed using SPSS version 23.
resultA total of 21 patients (mean age: 35.47 ± 6.43 years) who underwent ICRS implantation surgery were included. Significant mean differences between Pentacam AXL and IOL Master 700 were observed in anterior chamber depth (ACD), mean keratometry (KM), steep keratometry (K2), and white-to-white distance (WTW) (p < 0.05). No significant differences were found for axial length (AL), flat keratometry (K1), K1 and K2 meridians, or intraocular lens (IOL) power calculated using Haigis and SRK/T formulas (p > 0.05).
conclusionSignificant differences in ACD, KM, K2, and WTW were observed between Pentacam AXL and IOL Master 700 in patients with ICRS implantation, while AL, K1, K1 meridian, K2 meridian, and IOL power calculations (Haigis and SRK/T) showed no differences. These findings underscore the importance of device selection tailored to specific clinical and biometric needs and suggest the necessity of larger studies to confirm these results.
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