Evidence map›Paper›PMID 34183326›Full record

ArticleThe British journal of ophthalmology2022

Long-term evaluation of anterior lens density after implantable collamer lens V4c implantation in patients with myopia over 40 years old.

Yuhao Ye, Jing Zhao, Lingling Niu, Wanru Shi, Xiaoying Wang, Xingtao Zhou

Abstract read
In one paragraph

Article in The British journal of ophthalmology, 2022. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 23 papers.

0numbers the graph read from it
0cells of the map it votes in
23citing 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

23 citing papers in PubMed.

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  12. A Brillouin microscopy analysis of the crystalline lenses of Chinese adults with myopia.Graefe's archive for clinical and experimental ophthalmology = Albrecht von Graefes Archiv fur klinische und experimentelle Ophthalmologie · 2024
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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

6 authors.

Yuhao YeDepartment of Ophthalmology and Optometry, Fudan University Eye Ear Nose and Throat Hospital, Shanghai, China.
Jing ZhaoDepartment of Ophthalmology and Optometry, Fudan University Eye Ear Nose and Throat Hospital, Shanghai, China.
Lingling NiuDepartment of Ophthalmology and Optometry, Fudan University Eye Ear Nose and Throat Hospital, Shanghai, China.
Wanru ShiDepartment of Ophthalmology and Optometry, Fudan University Eye Ear Nose and Throat Hospital, Shanghai, China.
Xiaoying WangDepartment of Ophthalmology and Optometry, Fudan University Eye Ear Nose and Throat Hospital, Shanghai, China.ORCID 0000-0001-5419-6318
Xingtao ZhouDepartment of Ophthalmology and Optometry, Fudan University Eye Ear Nose and Throat Hospital, Shanghai, China doctzhouxingtao@163.com.ORCID 0000-0002-3465-1579

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

purposeTo investigate the long-term safety and efficacy of implantable collamer lens (ICL) V4c implantation and changes in the anterior lens density (ALD) in patients with myopia ≥40 years of age.

methodsThis prospective study included 104 eyes of 52 patients >40 years of age before ICL V4c implantation. Spherical equivalent (SE), uncorrected distance visual acuity, corrected distance visual acuity (CDVA), intraocular pressure, endothelial cell density, anterior chamber depth, anterior chamber volume and anterior chamber angle preoperatively, at 1 and 3 months, and at 3 years postoperatively were recorded. Pentacam HR was used to analyse ALD changes at a depth of 0.5, 1.0 and 1.5 mm within a 3 mm diameter range around the pupil's centre.

resultsThe overall follow-up was uneventful at 42±7.1 months; the safety index at last follow-up was 1.26±0.35 and the efficacy index was 0.91±0.41. No eye lost the Snellen line of CDVA, 76% of the eyes had an increase in CDVA for ≥1 line and 62% had an SE within ±0.50 dioptre. The increase in ALD at 0.5, 1 and 1.5 mm was 16.52%±10.46%, 16.72%±9.85% and 17.28%±11.93%, respectively. Preoperative, 1-month and 3-month postoperative ALDs showed correlations with SE and age, and ALD at last follow-up was correlated only with age. There was no correlation between ALD and any other parameters.

conclusionICL V4c shows long-term safety and efficacy in people ≥40 years of age. ALD increased in such patients, which may be related to age and SE.

Indexed as

MyopiaPhakic Intraocular LensesAdultFollow-Up StudiesHumansLens Implantation, IntraocularProspective StudiesRefraction, Ocularimaginglens and zonulesposterior chambertreatment surgery

Identifiers

PMID34183326
PMCPMC9606511

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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.