Evidence map›Paper›PMID 29462175›Full record

ArticlePloS one2018

Effect of cataract surgery on cognitive function in elderly: Results of Fujiwara-kyo Eye Study.

Kimie Miyata, Tadanobu Yoshikawa, Masayuki Morikawa, Masashi Mine, Nozomi Okamoto, Norio Kurumatani, Nahoko Ogata

Abstract read
In one paragraph

Article in PloS one, 2018. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 16 papers, 2 of them syntheses that pooled it.

0numbers the graph read from it
0cells of the map it votes in
16citing papers in PubMed, 2 pooled it
–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

16 citing papers in PubMed, 2 syntheses or guidelines pooled it.

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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

7 authors.

Kimie MiyataDepartment of Ophthalmology, Nara Medical University, Kashihara, Nara, Japan.
Tadanobu YoshikawaDepartment of Ophthalmology, Nara Medical University, Kashihara, Nara, Japan.
Masayuki MorikawaMie Prefectural Mental Care Center, Tsu, Mie, Japan.
Masashi MineDepartment of Ophthalmology, Nara Medical University, Kashihara, Nara, Japan.
Nozomi OkamotoDepartment of Community Health and Epidemiology, Nara Medical University, Kashihara, Nara, Japan.
Norio KurumataniDepartment of Community Health and Epidemiology, Nara Medical University, Kashihara, Nara, Japan.
Nahoko OgataDepartment of Ophthalmology, Nara Medical University, Kashihara, Nara, Japan.ORCID 0000-0002-4157-2203

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

purposeTo determine whether there is a significant association between prior cataract surgery and cognitive function in an elderly Japanese cohort.

settingNara Medical University, Nara, Japan.

designThe Fujiwara-kyo Eye Study was a cross-sectional epidemiological study.

methodsThe subjects were ≥ 68-years who lived in the Nara Prefecture and responded to recruitment notices. All of the subjects received comprehensive ophthalmological examinations, and answered questionnaires on their socio-demographic and medical history including prior cataract surgery. The association between prior cataract surgery and cognitive function was determined.

resultsA total of the 2764 subjects whose mean age was 76.3±4.8 years (±standard deviation) was studied. Of these, 668 individuals (24.2%) had undergone cataract surgery. Of these, 150 (5.4%) had dementia as determined by the Mini-Mental State Examination (MMSE) score ≤23, and 877 individuals (31.7%) had mild cognitive impairment (MCI; MMSE score 24-26). The subjects who had prior cataract surgery had significantly lower odds ratio (OR) of having MCI (OR = 0.78, 95% confidence interval; CI 0.64-0.96, P = 0.019) than those who had not had cataract surgery after adjusting for age, sex, body mass index, education, hypertension, diabetes, depression, and history of stroke. The OR was still lower when the visual acuity was also added to the adjusted factors (OR 0.79, 95% CI 0.64-0.97, P = 0.025). However, prior cataract surgery did not contribute significantly to the low OR for dementia.

conclusionsCataract surgery may play a role in reducing the risk of developing MCI independently of visual acuity but not for dementia.

Indexed as

Cataract ExtractionCognitionAgedCross-Sectional StudiesFemaleHumansMaleSurveys and QuestionnairesVisual Acuity

Identifiers

PMID29462175
PMCPMC5819799

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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.