Evidence map›Paper›PMID 32076966›Full record

ArticleInternational ophthalmology2020

Comparison of visual quality after Femto-LASIK and TransPRK in patients with low and moderate myopia.

Jingjing Jiang, Vishal Jhanji, Lixia Sun, Jinyu Li, Riping Zhang

Abstract readComparative Study
PubMed Publisher
In one paragraph

Article in International ophthalmology, 2020. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 6 papers.

0numbers the graph read from it
0cells of the map it votes in
6citing papers in PubMed
0.8field-weighted citation impact, top 25% of its field
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

6 citing papers in PubMed, 12 citations in OpenAlex.

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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 at 3 institutions in 2 countries.

Jingjing JiangJoint Shantou International Eye Center of Shantou University and the Chinese University of Hong Kong, Dong Xia North Road, Shantou, Guangdong Province, China.
Vishal JhanjiDepartment of Ophthalmology, University of Pittsburgh School of Medicine, Pittsburgh, USA.
Lixia SunJoint Shantou International Eye Center of Shantou University and the Chinese University of Hong Kong, Dong Xia North Road, Shantou, Guangdong Province, China.
Jinyu LiJoint Shantou International Eye Center of Shantou University and the Chinese University of Hong Kong, Dong Xia North Road, Shantou, Guangdong Province, China.
Riping ZhangJoint Shantou International Eye Center of Shantou University and the Chinese University of Hong Kong, Dong Xia North Road, Shantou, Guangdong Province, China. zrp@jsiec.org.
Chinese University of Hong Kong · CNShantou University · CNUniversity of Pittsburgh · US

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

purposeTo compare the visual quality after surgery of femtosecond-assisted laser in situ keratomileusis (Femto-LASIK) and transepithelial photorefractive keratectomy (TransPRK) in low and moderate myopia patients.

methodsA prospective controlled study was performed on 114 eyes of 62 patients with low to moderate myopia, including 64 eyes of 36 cases in Femto-LASIK group and 50 eyes of 26 cases in TransPRK group. The uncorrected visual acuity (UCVA), best-corrected visual acuity (BCVA), residual spherical equivalent (SE), wavefront aberration and contrast sensitivity were examined and analyses preoperatively, 1 month and 3 months postoperatively.

resultsThe UCVA over 0.8 was 100% in two groups at 1 month and 3 months postoperatively. Femto-LASIK group (96.49%) had a higher percentage than TransPRK group (67.39%) of UCVA over 1.0 at 1 month postoperatively (p < 0.001), but it was similar in two groups (97.78%, 90.48%) at 3 months postoperatively (p = 0.15). Femto-LASIK group (77.19%, 86.67%) had a higher percentage than TransPRK group (30.43%, 52.38%) of UCVA over 1.2 at 1 month and 3 months postoperatively (p < 0.001, p = 0.001). The SE of Femto-LASIK group was 0.07 ± 0.21 D, 0.02 ± 0.23 D at 1 month and 3 months postoperatively, and of TransPRK group was 0.11 ± 0.31 D, 0.14 ± 0.38 D; two groups had no significant differences (p = 0.57, p = 0.08). The safety index was 2.0 in Femto-LASIK group and 1.6 in TransPRK, while the efficacy index was 1.67 and 0.4, respectively. The vertical coma, spherical and higher-order aberrations of Femto-LASIK group were 0.37 ± 0.54 μm, 0.31 ± 0.27 μm, 0.89 ± 0.49 μm at 1 month postoperatively, and of TransPRK group were 0.12 ± 0.38 μm, 0.14 ± 0.28 μm, 0.71 ± 0.26 μm. There was significant difference between two groups at 1 months postoperatively (p < 0.001, p = 0.001, p = 0.006), but no significant difference at 3 months (p > 0.05). The contrast sensitivity without glare in 18 c/d spatial frequencies of Femto-LASIK group was 1.08 ± 0.26 at 1 month postoperatively, and that in TransPRK group was 0.99 ± 0.22. There was significant difference between two groups (p = 0.02). The contrast sensitivity with glare in 12 c/d and 18 c/d spatial frequencies at 1 month postoperatively had significant differences between Femto-LASIK and TransPRK groups (1.52 ± 0.17, 1.10 ± 0.23 vs 1.38 ± 0.39, 1.00 ± 0.27, p = 0.02, p = 0.03). While there were no significant differences at 3 months postoperatively (p > 0.05).

conclusionFemto-LASIK had a higher increase in whole eye higher-order aberrations and contrast sensitivity than TransPRK at 1 month postoperatively, but they were similar at 3 months postoperatively in low and moderate myopia patients.

Indexed as

Visual AcuityAdolescentAdultFemaleFollow-Up StudiesHumansKeratomileusis, Laser In SituLasers, ExcimerMaleMyopiaPhotorefractive KeratectomyPostoperative PeriodProspective StudiesRefraction, OcularTime FactorsTreatment OutcomeAberrationContrast sensitivityFemtosecond-assisted laser in situ keratomileusis (Femto-LASIK)Transepithelial photorefractive keratectomy (TransPRK)Visual quality

Identifiers

PMID32076966
OpenAlexW3007675452

What OpenQuestion holds

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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.