Evidence map›Paper›PMID 26292644›Full record

ArticleInternational ophthalmology2016

Effect of obstructive sleep apnea syndrome on corneal thickness.

Handan Inonu Koseoglu, Asiye Kanbay, Huseyin Ortak, Remzi Karadağ, Osman Demir, Selim Demir, Alper Gunes, Sibel Doruk

Abstract read
PubMed Publisher
In one paragraph

Article in International ophthalmology, 2016. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 7 papers.

0numbers the graph read from it
0cells of the map it votes in
7citing papers in PubMed
0.4field-weighted citation impact, top 34% 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

7 citing papers in PubMed, 24 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

8 authors at 3 institutions in 1 country.

Handan Inonu KoseogluDepartment of Pulmonary Diseases, Faculty of Medicine, Gaziosmanpasa University, Tokat, Turkey. handaninonu@gmail.com.
Asiye KanbayDepartment of Pulmonary Diseases, Medeniyet University, Istanbul, Turkey.
Huseyin OrtakDepartment of Ophthalmology, Faculty of Medicine, Gaziosmanpasa University, Tokat, Turkey.
Remzi KaradağDepartment of Ophthalmology, Faculty of Medicine, Medeniyet University, Istanbul, Turkey.
Osman DemirDepartment of Biostatistics and Medical Informatics, Faculty of Medicine, Gaziosmanpasa University, Tokat, Turkey.
Selim DemirDepartment of Ophthalmology, Faculty of Medicine, Gaziosmanpasa University, Tokat, Turkey.
Alper GunesDepartment of Ophthalmology, Faculty of Medicine, Gaziosmanpasa University, Tokat, Turkey.
Sibel DorukDepartment of Pulmonary Diseases, Faculty of Medicine, Sıfa University, Izmir, Turkey.
Tokat Gaziosmanpaşa Üniversitesi · TRIstanbul Medeniyet University · TRŞifa University · TR

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Obstructive sleep apnea syndrome (OSAS) might be a risk factor for the development of eye disorders. The aim of the study was to evaluate the effect of OSAS on central corneal thickness (CCT). A total of 195 patients were enrolled in the study, and underwent polysomnography. Patients were divided according to their apnea-hypopnea index (AHI) scores into control group (AHI < 5), mild (AHI, 5-15), moderate (AHI, 15-30), and severe OSAS (AHI > 30) groups. In ophthalmological examinations, CCT, auto refractometer measurement, tear break-up time, and Schrimer's test results were evaluated. Central corneal thickness was significantly decreased in patients with OSAS compared to the control group (542.14 ± 31.21 vs. 569.92 ± 13.46, p < 0.001). As the severity of OSAS increased, CCT decreased (mild OSAS = 567.48 ± 23 mm, moderate OSAS = 530.21 ± 30.2 mm, and severe OSAS = 557.97 ± 16.52 mm, respectively, p < 0.001). The mean values of auto refractometer, tear break-up time, and Schrimer's test were similar between the groups (p > 0.05). CCT was negatively correlated with AHI, oxygen desaturation index, desaturation percentages, and positively correlated with minimum oxygen saturation values (p < 0.05). This study showed that central corneal thickness is inversely correlated with the severity of OSAS. OSAS affects all organ systems particularly cardiovascular and neurological mechanisms. Further studies are warranted to evaluate the effect of OSAS treatment on CCT.

Indexed as

AdultAgedCase-Control StudiesCorneaCorneal TopographyFemaleHumansMaleMiddle AgedOxygenRefraction, OcularRisk FactorsSeverity of Illness IndexSleep Apnea, ObstructiveTearsOxygenCentral corneal thicknessHypoxiaObstructive sleep apnea syndromeOphthalmic changesPolysomnography

Identifiers

PMID26292644
OpenAlexW2156806132

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.