ReviewJournal of current ophthalmology2019
Intraocular lens power calculation in keratoconus; A review of literature.
Review in Journal of current ophthalmology, 2019. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 18 papers, 1 of them a synthesis that pooled it.
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.
Neither the registry nor the abstract names a trial number. If this is a trial report, that itself is worth knowing.
Who cites it
18 citing papers in PubMed, 1 synthesis or guideline pooled it, 44 citations in OpenAlex.
- Intraocular lens power calculation accuracy in patients with keratoconus: Network meta-analysis and systematic review.Clinical & experimental ophthalmologyPooled it
- Role of toric intraocular lenses in the correction of keratoconic eyes with cataract.Journal of cataract and refractive surgery · 2026Article
- Predictive Accuracy of Intraocular Lens Power Calculation Formulas for Cataract Surgery in Keratoconus: A Systematic Review and Network Meta-Analysis.Clinical ophthalmology (Auckland, N.Z.) · 2026Review
- Challenges in Biometry and Intraocular Lens Power Calculations in Keratoconus: A Review.Diagnostics (Basel, Switzerland) · 2025Review
- Article
- Intraocular lens power calculation in cataract patients with keratoconus: Bayesian network meta-analysis.International ophthalmology · 2025Review
- Evaluation of the Accuracy of Intraocular Lens Power Calculation Formulas for Cataract Surgery in Patients with Keratoconus.Journal of ophthalmic & vision research · 2025Article
- Total keratometry versus standard keratometry for intraocular lens power calculation in eyes with keratoconus.International ophthalmology · 2024Observational
- Current concepts in the management of cataract with keratoconus.Indian journal of ophthalmology · 2024Review
- Actual anterior-posterior corneal radius ratio in eyes with prior myopic laser vision correction according to axial length.Scientific reports · 2023Article
- Measuring the agreement of keratometry readings of four devices in eyes with keratoconus.International ophthalmology · 2023Article
- Intraocular lens power calculation in patients with irregular astigmatism.Graefe's archive for clinical and experimental ophthalmology = Albrecht von Graefes Archiv fur klinische und experimentelle Ophthalmologie · 2022Article
- Refractive Outcomes of Non-Toric and Toric Intraocular Lenses in Mild, Moderate and Advanced Keratoconus: A Systematic Review and Meta-Analysis.Journal of clinical medicine · 2022Review
- Comparative clinical accuracy analysis of the newly developed ZZ IOL and four existing IOL formulas for post-corneal refractive surgery eyes.BMC ophthalmology · 2021Article
- Article
- Hypermature Intumescent Cataract in Advanced Keratoglobus.International medical case reports journal · 2020Article
- Toric intraocular lens implantation - atypical cases.Romanian journal of ophthalmologyArticle
- Update on Intraocular Lens Formulas and Calculations.Asia-Pacific journal of ophthalmology (Philadelphia, Pa.)Review
Corrections and comments
PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.
Authors and funding
4 authors at 2 institutions in 1 country.
Funding
No grant is acknowledged in the PubMed record.
Abstract
purposeTo review the published literature regarding cataract surgery in keratoconus (KCN) patients with emphasis on challenges encountered during intraocular lens (IOL) power calculation and their solutions.
methodsA literature review was performed to investigate all the relevant articles on the advancements of IOL calculations in KCN patients.
resultsCataract surgery in keratoconic eyes can improve patients' refraction, and proper patient selection and IOL calculation methods are necessary to get the best results. The main problem in KCN patients is unreliable biometric measurements. It is more difficult to make conclusions in more advanced keratoconic corneas, as the steep keratometric values in these eyes will result in the selection of a low-power IOL. Presence of a low-power IOL will yield in extreme postoperative hyperopia, and IOL exchange might be mandatory. In cases in which keratoplasty may be needed in the future, contact lens fitting can help surgeons make a better decision preoperatively. Axial length (AL) measurements may have better repeatability and reproducibility than keratometry (K) readings in keratoconic eyes. SRK II formula may provide the most accurate IOL power in mild KCN. There is still not a comprehensive consensus of which formula is the best one in moderate and severe KCN, as the literature is limited in this subject.
conclusionsVarious methods of IOL power calculation optimization and recommendations may hold the key to improve surgical outcomes in keratoconic eyes. There are multiple sources of biometric error in KCN patients, hence IOL calculation methods may not be as efficient as expected in these eyes.
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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.