ArticleFrontiers in medicine2026
Research on refractive power calculation formula of intraocular lens based on the principle of double thick lens imaging.
Article in Frontiers in medicine, 2026. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Not yet cited in PubMed.
What it found
Each row is one number read from the abstract, on the scale the paper reported it, with its interval. Left of the dashed line favours the treatment, right favours the comparator. Under each row is the sentence it came from. New to these charts? A ten-minute tutorial.
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
0 citing papers in PubMed.
No citing paper in PubMed yet.
Corrections and comments
PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.
Authors and funding
3 authors.
Funding
No grant is acknowledged in the PubMed record.
Abstract
Introduction: This study aimed to develop and validate a novel formula for calculating intraocular lens (IOL) refractive power based on Gaussian optics and thick-lens imaging. Methods: This study was conducted at Ningbo Traditional Chinese Medicine Hospital between October 2021 and October 2023. A total of 54 patients (84 eyes) with age-related cataracts (ARC) undergoing phacoemulsification and IOL implantation were included. The effective lens position was defined as (ACD + W × preoperative LT), where ACD is the anterior chamber depth and LT is the lens thickness. A new IOL power calculation formula was derived using stepwise multiple linear regression, incorporating key ocular parameters including axial length (adjusted for central corneal thickness), keratometry, and the effective lens position. The performance of the new formula was compared with five established formulas: Barrett Universal II, Haigis, Hoffer Q, SRK/T, and Holladay I. For each formula, we compared the mean and median predicted error (PE), the mean and median absolute predicted error (APE), and the proportions of eyes with within ±0.25 D, ±0.50 D, and ±1.00 D. Results: The newly developed formula demonstrated excellent bias control, with a median prediction error of 0.060 D that was not statistically different from zero ( Discussion: The proposed IOL calculation formula, which is based on a double-thick-lens imaging model, provides improved control of systematic bias and competitive predictive accuracy. This approach offers a promising framework for clinical applications of personal IOL power calculations.
Indexed as
Identifiers
What Socratic holds
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 Socratic graph.