Evidence map›Paper›PMID 41366754›Full record

Observational studyBMC ophthalmology2025

Refractive outcome and visual quality of Ray-Tracing Guided LASIK: a prospective study.

Yue Wang, Yuanyuan Zhang, Jiayu Pan, Jifan Wang, Xuejun Fang

Abstract readObservational Study
In one paragraph

Observational study in BMC ophthalmology, 2025. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 1 paper.

0numbers the graph read from it
0cells of the map it votes in
1citing papers in PubMed
–field-weighted citation impact
1 · What the graph read from it

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.

2 · The registry

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.

3 · Its place in the literature

Who cites it

1 citing paper in PubMed.

  1. Article
4 · The record

Corrections and comments

PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.

5 · Who and what money

Authors and funding

5 authors.

Yue WangLiaoning Aier Eye Hospital, No. 99, Hepingbei Road, Heping District, Shenyang, PR China.
Yuanyuan ZhangLiaoning Aier Eye Hospital, No. 99, Hepingbei Road, Heping District, Shenyang, PR China.
Jiayu PanLiaoning Aier Eye Hospital, No. 99, Hepingbei Road, Heping District, Shenyang, PR China.
Jifan WangLiaoning Aier Eye Hospital, No. 99, Hepingbei Road, Heping District, Shenyang, PR China.
Xuejun FangAier Academy of Ophthalmology, Central South University, No.188, Furong South Road, Tianxin District, Changsha, Hunan, 410004, PR China. fangxuejun@aierchina.com.

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

purposeThis study aimed to evaluate the safety and effectiveness of Ray-Tracing Guided LASIK surgery and to compare the refractive outcomes and visual quality between patients with spherical equivalent (SEQ) differences of ≤ 0.75D and > 0.75D, as measured by the InnovEyes sightmap and subjective refraction.

designProspective, observational cohort study. SUBJECTS: Forty-six patients (89 eyes) undergoing Ray-Tracing Guided LASIK with preoperative SEQ differences between sightmap and subjective refraction of either ≤ 0.75D or > 0.75D.

methodsPatients underwent preoperative examinations using InnovEyes sightmap diagnostic equipment to detect and measure biological parameters. A ray tracing-based algorithm was used to determine ablation contours, with direct application of ablation data for SEQ differences ≤ 0.75D and parameter adjustment for differences > 0.75D. Outcomes included uncorrected distance visual acuity (UDVA), corrected distance visual acuity (CDVA), manifest refraction spherical equivalent (MRSE), and total higher-order aberration (HOAs), measured preoperatively and six months postoperatively.

resultsSix months post-surgery, 100% of eyes in both groups achieved a postoperative UDVA of at least 20/25, with 76% of the ≤ 0.75D group and 81% of > 0.75D reaching 20/16. Additionally, 33% and 16% reached 20/12.5 in these groups, respectively. Postoperative CDVA was CDVA was equal to or better than preoperative levels in 98% of the ≤ 0.75D group and 95% of the > 0.75D group (P < 0.05). No significant overcorrection or undercorrection was observed. There were significant differences in vertical coma between preoperative and postoperative values in both groups (all P < 0.05), while there was no significant difference in other higher-order aberrations (P > 0.05).

conclusionRay-Tracing Guided-LASIK surgery is safe and effective. Compared with the preoperative BCVA, it can achieve better postoperative UDVA and effectively avoid the introduction of HOAs. In addition, for cases in which the MRSE difference between the two preoperative examination methods is ≥ 0.75, surgical design parameters adjustment can achieve ideal postoperative results.

Indexed as

Keratomileusis, Laser In SituLasers, ExcimerMyopiaRefraction, OcularSurgery, Computer-AssistedVisual AcuityAdultCohort StudiesFemaleHumansMaleMiddle AgedProspective StudiesTreatment OutcomeYoung AdultAberrationsRay-tracingRefractive outcomesSightmapSpherical equivalentVisual acuity

Identifiers

PMID41366754
PMCPMC12690953

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Registered trials

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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.