Factors Affecting Contrast Sensitivity in Healthy Individuals: A Pilot Study.
Objectives: To determine the demographic and ocular features affecting contrast sensitivity levels in healthy individuals. Materials and. Methods: Seventy-four eyes of 37 subjects (7-65 years old) with refractive errors less than 1.0 diopter, no history of ocular surgery, and 20/20 visual acuity wer...
| Publicado en: | Turkish Journal of Ophthalmology / Türk Oftalmoloji Dergisi Vol. 47; no. 2; pp. 80 - 85 |
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| Autores principales: | , , |
| Formato: | research tables/charts Journal Article |
| Publicado: |
Galenos Yayinevi Tic. LTD. STI
Apr2017
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| Acceso en línea: | Ver este registro en EBSCOhost |
| fields | @attributes: recordID: 1 pdfLink: plink: https://search.ebscohost.com/login.aspx?direct=true&db=ccm&AN=122335167&site=ehost-live header: @attributes: shortDbName: ccm uiTerm: 122335167 longDbName: CINAHL Complete uiTag: AN controlInfo: bkinfo: dissinfo: jinfo: jid: 21498695 B6K2 jtl: Turkish Journal of Ophthalmology / Türk Oftalmoloji Dergisi issn: 21498695 maglogo: N pubinfo: dt: Apr2017 vid: 47 iid: 2 pid: 28155 pub: Galenos Yayinevi Tic. LTD. STI artinfo: ui: 122335167 122335167 122335167 10.4274/tjo.93763 122335167 ppf: 80 ppct: 5 formats: tig: atl: Factors Affecting Contrast Sensitivity in Healthy Individuals: A Pilot Study. aug: au: Karatepe, Arzu Seyhan Köse, Süheyla Eğrilmez, Sait affil: Kayseri Training and Research Hospital, Ophthalmology Clinic, Kayseri, Turkey sug: subj: Visual Acuity Pilot Studies Tonometry Named Groups by Age Refractive Errors Sensitivity and Specificity Matched-Pair Analysis Data Collection Comparative Studies Study Design Reliability ab: Objectives: To determine the demographic and ocular features affecting contrast sensitivity levels in healthy individuals. Materials and. Methods: Seventy-four eyes of 37 subjects (7-65 years old) with refractive errors less than 1.0 diopter, no history of ocular surgery, and 20/20 visual acuity were included in the study. The participants were divided by age into three groups: group 1, 7-19 years, n=11; group 2, 20-49 years, n=15; and group 3, 50-65 years, n=11. All subjects underwent anterior and posterior segment evaluation, intraocular pressure measurements, refraction measurements, and clinical evaluation for strabismus. Contrast static test was performed using Metrovision MonPack 3 vision monitor system after measuring pupil diameter. Photopic and mesopic measurements were taken sequentially from right eyes, left eyes, and both eyes together. Results: Contrast sensitivity at intermediate and high spatial frequencies was lower with increasing age. Binocular measurements were better than monocular, and mesopic measurements were better than photopic measurements at all spatial frequencies. Contrast sensitivity at higher spatial frequency was lower with hyperopic refraction values. Conclusion: Increasing age, small pupil diameter, hyperopia, and photopic conditions were associated with lower contrast sensitivity in healthy individuals. Binocular contrast sensitivity measurements were better than monocular contrast sensitivity measurements in all conditions and spatial frequencies. pubtype: Academic Journal doctype: research tables/charts Journal Article ougenre: Article language: English refInfo: holdings: @attributes: islocal: N |
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