The Evaluation of the Effects of Differently-Designed Toric Soft Contact Lenses on Visual Quality
Purpose: The purpose of this study was to evaluate the effects of aspheric Balafilcon A and spherical Senofilcon A toric soft contact lenses, which have two different stabilization systems, on visual quality. Material and Method: Forty eyes of 20 patients who were followed up in our contact lens s...
| Main Authors: | , , , |
|---|---|
| Format: | Article |
| Language: | English |
| Published: |
Galenos Yayinevi
2013-08-01
|
| Series: | Türk Oftalmoloji Dergisi |
| Subjects: | |
| Online Access: | http://www.oftalmoloji.org/article_2280/The-Evaluation-Of-The-Effects-Of-Differently-designed-Toric-Soft-Contact-Lenses-On-Visual-Quality |
| _version_ | 1797915334855884800 |
|---|---|
| author | Sevda Aydın Kurna Mustafa Demir Ahmet Altun Tomris Şengör |
| author_facet | Sevda Aydın Kurna Mustafa Demir Ahmet Altun Tomris Şengör |
| author_sort | Sevda Aydın Kurna |
| collection | DOAJ |
| description | Purpose: The purpose of this study was to evaluate the effects of aspheric Balafilcon A and spherical Senofilcon A toric soft contact lenses,
which have two different stabilization systems, on visual quality.
Material and Method: Forty eyes of 20 patients who were followed up in our contact lens section were included in this study. Refractive
errors of the patients were between -0.50 and -6.0 diopters of myopia and >0.75 diopter of astigmatism. The patients were randomly assigned
to wear Balafilcon A (Purevision Toric, Baush&Lomb) with prism balast toric system or spherical designed Senofilcon A (Acuvue Oasys for
astigmatism, Johnson&Johnson) with accelerated stabilization toric system. We recorded and compared the visual acuity with Snellen chart,
contrast sensitivity with Bailey-Lovie chart in letters, mean root mean square (RMS) of corneal aberration with by Nidek Magellan Mapper for
all eyes with and without glasses and while wearing Balafilcon A or Senofilcon A toric soft contact lenses.
Results: We did not observe any difference in visual acuity between contact lenses. Contrast sensitivity was increased approximately 4.8-5.4
letters with contact lenses. Total higher order aberrations of mean RMS values were 0.42±0.14 µm without contact lens, 0.37±0.23 µm with
Balafilcon A lens, 0.43±0.15 µm with Senofilcon A (p=0.507). Trefoil values were significantly higher with Senofilcon A lenses when compared
to Balafilcon A lenses. There was no statistically significant difference for other measured higher order aberrations.
Discussion: High and low contrast vision values were adequate in both contact lens groups. There was a non-significant decrease in total
higher order aberration values with aspheric design contact lenses when compared to spherical designs. Although there were differences in
aberrations related to lens designs, they did not have significant effect on visual quality. (Turk J Ophthalmol 2013; 43: 253-7) |
| first_indexed | 2024-04-10T12:41:07Z |
| format | Article |
| id | doaj.art-dc1fbf1e9cc1485ea565d49d2f67cfc7 |
| institution | Directory Open Access Journal |
| issn | 1300-0659 2147-2661 |
| language | English |
| last_indexed | 2024-04-10T12:41:07Z |
| publishDate | 2013-08-01 |
| publisher | Galenos Yayinevi |
| record_format | Article |
| series | Türk Oftalmoloji Dergisi |
| spelling | doaj.art-dc1fbf1e9cc1485ea565d49d2f67cfc72023-02-15T16:14:20ZengGalenos YayineviTürk Oftalmoloji Dergisi1300-06592147-26612013-08-0143425325710.4274/tjo.43.36693The Evaluation of the Effects of Differently-Designed Toric Soft Contact Lenses on Visual QualitySevda Aydın Kurna0Mustafa Demir1Ahmet Altun2Tomris Şengör3Fatih Sultan Mehmet Eğitim ve Araştırma Hastanesi, Göz Kliniği, İstanbul, TürkiyeFatih Sultan Mehmet Eğitim ve Araştırma Hastanesi, Göz Kliniği, İstanbul, TürkiyeFatih Sultan Mehmet Eğitim ve Araştırma Hastanesi, Göz Kliniği, İstanbul, TürkiyeBilim Üniversitesi Florance Nightingale Hastanesi, Göz Kliniği, İstanbul, TürkiyePurpose: The purpose of this study was to evaluate the effects of aspheric Balafilcon A and spherical Senofilcon A toric soft contact lenses, which have two different stabilization systems, on visual quality. Material and Method: Forty eyes of 20 patients who were followed up in our contact lens section were included in this study. Refractive errors of the patients were between -0.50 and -6.0 diopters of myopia and >0.75 diopter of astigmatism. The patients were randomly assigned to wear Balafilcon A (Purevision Toric, Baush&Lomb) with prism balast toric system or spherical designed Senofilcon A (Acuvue Oasys for astigmatism, Johnson&Johnson) with accelerated stabilization toric system. We recorded and compared the visual acuity with Snellen chart, contrast sensitivity with Bailey-Lovie chart in letters, mean root mean square (RMS) of corneal aberration with by Nidek Magellan Mapper for all eyes with and without glasses and while wearing Balafilcon A or Senofilcon A toric soft contact lenses. Results: We did not observe any difference in visual acuity between contact lenses. Contrast sensitivity was increased approximately 4.8-5.4 letters with contact lenses. Total higher order aberrations of mean RMS values were 0.42±0.14 µm without contact lens, 0.37±0.23 µm with Balafilcon A lens, 0.43±0.15 µm with Senofilcon A (p=0.507). Trefoil values were significantly higher with Senofilcon A lenses when compared to Balafilcon A lenses. There was no statistically significant difference for other measured higher order aberrations. Discussion: High and low contrast vision values were adequate in both contact lens groups. There was a non-significant decrease in total higher order aberration values with aspheric design contact lenses when compared to spherical designs. Although there were differences in aberrations related to lens designs, they did not have significant effect on visual quality. (Turk J Ophthalmol 2013; 43: 253-7)http://www.oftalmoloji.org/article_2280/The-Evaluation-Of-The-Effects-Of-Differently-designed-Toric-Soft-Contact-Lenses-On-Visual-QualityToric contact lenscorneal aberrationsvisual qualitycontrast sensitivity |
| spellingShingle | Sevda Aydın Kurna Mustafa Demir Ahmet Altun Tomris Şengör The Evaluation of the Effects of Differently-Designed Toric Soft Contact Lenses on Visual Quality Türk Oftalmoloji Dergisi Toric contact lens corneal aberrations visual quality contrast sensitivity |
| title | The Evaluation of the Effects of Differently-Designed Toric Soft Contact Lenses on Visual Quality |
| title_full | The Evaluation of the Effects of Differently-Designed Toric Soft Contact Lenses on Visual Quality |
| title_fullStr | The Evaluation of the Effects of Differently-Designed Toric Soft Contact Lenses on Visual Quality |
| title_full_unstemmed | The Evaluation of the Effects of Differently-Designed Toric Soft Contact Lenses on Visual Quality |
| title_short | The Evaluation of the Effects of Differently-Designed Toric Soft Contact Lenses on Visual Quality |
| title_sort | evaluation of the effects of differently designed toric soft contact lenses on visual quality |
| topic | Toric contact lens corneal aberrations visual quality contrast sensitivity |
| url | http://www.oftalmoloji.org/article_2280/The-Evaluation-Of-The-Effects-Of-Differently-designed-Toric-Soft-Contact-Lenses-On-Visual-Quality |
| work_keys_str_mv | AT sevdaaydınkurna theevaluationoftheeffectsofdifferentlydesignedtoricsoftcontactlensesonvisualquality AT mustafademir theevaluationoftheeffectsofdifferentlydesignedtoricsoftcontactlensesonvisualquality AT ahmetaltun theevaluationoftheeffectsofdifferentlydesignedtoricsoftcontactlensesonvisualquality AT tomrissengor theevaluationoftheeffectsofdifferentlydesignedtoricsoftcontactlensesonvisualquality AT sevdaaydınkurna evaluationoftheeffectsofdifferentlydesignedtoricsoftcontactlensesonvisualquality AT mustafademir evaluationoftheeffectsofdifferentlydesignedtoricsoftcontactlensesonvisualquality AT ahmetaltun evaluationoftheeffectsofdifferentlydesignedtoricsoftcontactlensesonvisualquality AT tomrissengor evaluationoftheeffectsofdifferentlydesignedtoricsoftcontactlensesonvisualquality |