dc.contributor.author | Demir, Mustafa | |
dc.contributor.author | Kurna, Sevda Aydin | |
dc.contributor.author | Sengor, Tomris | |
dc.contributor.author | Atakan, Tugba Gencaga | |
dc.contributor.author | Sahin, Tayfun | |
dc.date.accessioned | 2019-08-13T12:10:23Z | |
dc.date.accessioned | 2019-08-13T16:02:23Z | |
dc.date.available | 2019-08-13T12:10:23Z | |
dc.date.available | 2019-08-13T16:02:23Z | |
dc.date.issued | 2015 | |
dc.identifier.issn | 2148-4902 | |
dc.identifier.uri | https://dx.doi.org/10.14744/nci.2015.87487 | |
dc.identifier.uri | http://hdl.handle.net/11446/2790 | |
dc.description | WOS: 000439920000001 | en_US |
dc.description | PubMed ID: 28058332 | en_US |
dc.description.abstract | OBJECTIVE: To evaluate the aberration and visual quality differences between myopic and astigmatic eyes before and after contact lens application by using corneal aberrometer and low-contrast sensitivity chart. METHODS: Eighty eyes of 40 patients were included in this study. Patients were divided into two groups as myopic (40 eyes, n = 20) and astigmatic groups (40 eyes, n = 20). We used aspheric Balafilcon A (Purevision and Purevision Toric Bausch&Lomb, Rochester, USA) lenses for each group. Corneal aberrations and low-contrast sensitivity values were measured and compared for each patient in both groups. RESULTS: There were no statistically significant differences between myopic and astigmatic groups when we compared low-contrast sensitivity values for both on- and off-eyes. Mean total higher-order aberration (HOA) values for off-eye, were 0.29 +/- 0.10 mu m, and 0.33 +/- 0.10 mu m for on-eye in the myopic group, while they were 0.42 +/- 0.14 mu m in off-eye and 0.37 +/- 0.23 mu m in on-eye in the astigmatic group. Off-eye mean coma, irregular astigmatism and total higher-order aberration RMS (root-mean-square) values were significantly higher in the astigmatic group compared to the myopic group (p = 0.006, p = 0.001, p = 0.001) but mean on-eye RMS values were not. CONCLUSION: Myopic and astigmatic patients differ in terms of high-order aberrations and these differences cannot be equalized after contact lens application, but visual quality can be improved in both patients by using contact lenses. | en_US |
dc.language.iso | eng | en_US |
dc.publisher | KARE PUBL | en_US |
dc.identifier.doi | 10.14744/nci.2015.87487 | en_US |
dc.rights | info:eu-repo/semantics/openAccess | en_US |
dc.subject | Astigmatism | en_US |
dc.subject | contact lens | en_US |
dc.subject | corneal aberrations | en_US |
dc.subject | myopia | en_US |
dc.subject | visual quality | en_US |
dc.title | Assessment of aberrations and visual quality differences between myopic and astigmatic eyes before and after contact lens application | en_US |
dc.type | article | en_US |
dc.relation.journal | NORTHERN CLINICS OF ISTANBUL | en_US |
dc.department | DBÜ | en_US |
dc.identifier.issue | 1 | en_US |
dc.identifier.volume | 2 | en_US |
dc.identifier.startpage | 1 | en_US |
dc.identifier.endpage | 6 | en_US |
dc.relation.publicationcategory | Makale - Uluslararası Hakemli Dergi - Kurum Öğretim Elemanı | en_US |
dc.department-temp | [Demir, Mustafa -- Kurna, Sevda Aydin -- Atakan, Tugba Gencaga -- Sahin, Tayfun] Fatih Sultan Mehmet Training & Res Hosp, Dept Ophthalmol, Istanbul, Turkey -- [Sengor, Tomris] Bilim Univ, Dept Ophthalmol, Fac Med, Istanbul, Turkey | en_US |