Evidence map›Paper›PMID 31641885›Full record

ArticleGraefe's archive for clinical and experimental ophthalmology = Albrecht von Graefes Archiv fur klinische und experimentelle Ophthalmologie2020

Optical quality in low astigmatic eyes with or without cylindrical correction.

Qing-Qing Tan, Bai-Wei Wen, Xuan Liao, Jing Tian, Jia Lin, Chang-Jun Lan

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In one paragraph

Article in Graefe's archive for clinical and experimental ophthalmology = Albrecht von Graefes Archiv fur klinische und experimentelle Ophthalmologie, 2020. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 11 papers.

0numbers the graph read from it
0cells of the map it votes in
11citing papers in PubMed
0.5field-weighted citation impact, top 32% 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

11 citing papers in PubMed, 15 citations in OpenAlex.

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  7. A novel quick contrast sensitivity function test in Chinese adults with myopia and its related parameters.Graefe's archive for clinical and experimental ophthalmology = Albrecht von Graefes Archiv fur klinische und experimentelle Ophthalmologie · 2023
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  8. Review
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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 at 1 institution in 1 country.

Qing-Qing TanDepartment of Ophthalmology, Affiliated Hospital of North Sichuan Medical College, 1 Mao Yuan Nan Road, Nanchong, 637000, Sichuan, China.ORCID http://orcid.org/0000-0002-3858-0528
Bai-Wei WenDepartment of Ophthalmology, Affiliated Hospital of North Sichuan Medical College, 1 Mao Yuan Nan Road, Nanchong, 637000, Sichuan, China.
Xuan LiaoDepartment of Ophthalmology, Affiliated Hospital of North Sichuan Medical College, 1 Mao Yuan Nan Road, Nanchong, 637000, Sichuan, China.
Jing TianDepartment of Ophthalmology, Affiliated Hospital of North Sichuan Medical College, 1 Mao Yuan Nan Road, Nanchong, 637000, Sichuan, China.
Jia LinDepartment of Ophthalmology, Affiliated Hospital of North Sichuan Medical College, 1 Mao Yuan Nan Road, Nanchong, 637000, Sichuan, China.
Chang-Jun LanDepartment of Ophthalmology, Affiliated Hospital of North Sichuan Medical College, 1 Mao Yuan Nan Road, Nanchong, 637000, Sichuan, China. eyelanchangjun@163.com.ORCID http://orcid.org/0000-0002-1040-9622
North Sichuan Medical University · CN

Funding

Sichuan Health and Family Planning Commission 18ZD022
6 · The paper itself

Abstract

purposeTo investigate whether optical quality could be improved by cylindrical correction for low astigmatic eyes with different amounts and axis orientations in patients with myopia up to - 3.00 diopters (D).

methodsA cross-sectional study enrolling healthy young eyes with 0 to - 3.00 D myopia and - 0.50 to - 0.75 D myopic astigmatism was implemented. With a repeated-measures design, outcome measures were sequentially obtained for each subject under two correction modalities: spherocylindrical correction and spherical correction. Subjective refraction was used to determine the refractive prescriptions accordingly in the two correction modalities to obtain optimal subject-reported visual acuity. Primary outcomes were optical quality parameters including objective scatter index (OSI), modulation transfer function (MTF) cut-off, Strehl ratio (SR), and a simulated contrast visual acuity-optical quality analysis system (OQAS) values (OV) obtained by a double-pass system. Corrected distance visual acuity (CDVA) was measured as a secondary outcome. Outcome comparisons between the two correction modalities were performed by grouping in different amounts (- 0.50 D, - 0.75 D) and axes (with the rule, WTR; against the rule, ATR; oblique, OBL) of astigmatism.

resultsA total of 194 eyes of 194 subjects were evaluated. Significantly better CDVA were shown by spherocylindrical correction for all types of astigmatism except for - 0.50 D WTR astigmatism (P = 0.831). For eyes with - 0.50 D WTR astigmatism, better outcome was only shown in OSI with spherocylindrical correction (P = 0.019). For eyes with - 0.50 D ATR and OBL astigmatism, spherocylindrical correction demonstrated better outcomes in all parameters except for SR (P > 0.05). For eyes with - 0.75 D astigmatism, significantly better outcomes in all optical quality parameters were shown with spherocylindrical correction regardless of the axis (P < 0.05).

conclusionsEyes with ATR or OBL myopic astigmatism may benefit in optical quality and visual acuity by combining a cylindrical correction even with a low amount down to - 0.50 D. However, optical quality and visual acuity improvement are limited for WTR astigmatic eyes when the amount of astigmatism is less than - 0.75 D.

Indexed as

EyeglassesVisual AcuityAdultAstigmatismCross-Sectional StudiesEquipment DesignFemaleFollow-Up StudiesHumansMaleRefraction, OcularRetrospective StudiesTreatment OutcomeVision TestsYoung AdultAstigmatismAxisCylindricalOptical qualitySpherical

Identifiers

PMID31641885
OpenAlexW2982072955

What OpenQuestion holds

Textmetadata
Read underepoch 390

Registered trials

None linked

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.