Optical Impact of Corneal Clearance in Healthy Eyes Fitted with Scleral Contact Lenses: A Pilot Study
This pilot study was conducted to evaluate the effect on refraction and optical quality of the increase in the corneal clearance after fitting a specific model of scleral contact lens (ScCL) in healthy subjects. A total of 15 eyes from 15 subjects were enrolled in the study, with evaluation of refra...
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| Format: | Article |
| Language: | English |
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MDPI AG
2022-06-01
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| Series: | Journal of Clinical Medicine |
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| Online Access: | https://www.mdpi.com/2077-0383/11/12/3424 |
| _version_ | 1797486004372766720 |
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| author | María Villa Francisco Cavas David P. Piñero |
| author_facet | María Villa Francisco Cavas David P. Piñero |
| author_sort | María Villa |
| collection | DOAJ |
| description | This pilot study was conducted to evaluate the effect on refraction and optical quality of the increase in the corneal clearance after fitting a specific model of scleral contact lens (ScCL) in healthy subjects. A total of 15 eyes from 15 subjects were enrolled in the study, with evaluation of refraction, ocular aberrations and central corneal clearance with the same model of ScCL (ICD Toric, Paragon Vision Science, Gilbert, AZ, USA), but using 3 different sagittal heights: 4200, 4500 and 4800 µm. Mean values of corneal clearance for each ScCL fitted were 418.1 ± 112.1, 706.5 ± 120.3 and 989.9 ± 117.0 µm, respectively. Significant changes were detected in the spherical equivalent and high-order aberrations, especially coma and spherical aberration, when fitting ScCLs of increasing sagittal heights compared to the pre-fitting values. In conclusion, the increase in central corneal clearance when fitting ScCLs affects refraction, leading to a more myopic refractive error, and inducing an increase in different ocular HOAs. This should be considered when fitting ScCLs, especially multifocal designs. |
| first_indexed | 2024-03-09T23:26:58Z |
| format | Article |
| id | doaj.art-0e67bc4c41b74ae8996d584177edd385 |
| institution | Directory Open Access Journal |
| issn | 2077-0383 |
| language | English |
| last_indexed | 2024-03-09T23:26:58Z |
| publishDate | 2022-06-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Journal of Clinical Medicine |
| spelling | doaj.art-0e67bc4c41b74ae8996d584177edd3852023-11-23T17:15:47ZengMDPI AGJournal of Clinical Medicine2077-03832022-06-011112342410.3390/jcm11123424Optical Impact of Corneal Clearance in Healthy Eyes Fitted with Scleral Contact Lenses: A Pilot StudyMaría Villa0Francisco Cavas1David P. Piñero2Department of Optics, Pharmacology and Anatomy, University of Alicante, 03690 Alicante, SpainDepartment of Structures, Construction and Graphic Expression, Technical University of Cartagena, 30202 Cartagena, SpainDepartment of Optics, Pharmacology and Anatomy, University of Alicante, 03690 Alicante, SpainThis pilot study was conducted to evaluate the effect on refraction and optical quality of the increase in the corneal clearance after fitting a specific model of scleral contact lens (ScCL) in healthy subjects. A total of 15 eyes from 15 subjects were enrolled in the study, with evaluation of refraction, ocular aberrations and central corneal clearance with the same model of ScCL (ICD Toric, Paragon Vision Science, Gilbert, AZ, USA), but using 3 different sagittal heights: 4200, 4500 and 4800 µm. Mean values of corneal clearance for each ScCL fitted were 418.1 ± 112.1, 706.5 ± 120.3 and 989.9 ± 117.0 µm, respectively. Significant changes were detected in the spherical equivalent and high-order aberrations, especially coma and spherical aberration, when fitting ScCLs of increasing sagittal heights compared to the pre-fitting values. In conclusion, the increase in central corneal clearance when fitting ScCLs affects refraction, leading to a more myopic refractive error, and inducing an increase in different ocular HOAs. This should be considered when fitting ScCLs, especially multifocal designs.https://www.mdpi.com/2077-0383/11/12/3424scleral contact lenscentral corneal clearanceoptical qualityrefractionhigh order aberration |
| spellingShingle | María Villa Francisco Cavas David P. Piñero Optical Impact of Corneal Clearance in Healthy Eyes Fitted with Scleral Contact Lenses: A Pilot Study Journal of Clinical Medicine scleral contact lens central corneal clearance optical quality refraction high order aberration |
| title | Optical Impact of Corneal Clearance in Healthy Eyes Fitted with Scleral Contact Lenses: A Pilot Study |
| title_full | Optical Impact of Corneal Clearance in Healthy Eyes Fitted with Scleral Contact Lenses: A Pilot Study |
| title_fullStr | Optical Impact of Corneal Clearance in Healthy Eyes Fitted with Scleral Contact Lenses: A Pilot Study |
| title_full_unstemmed | Optical Impact of Corneal Clearance in Healthy Eyes Fitted with Scleral Contact Lenses: A Pilot Study |
| title_short | Optical Impact of Corneal Clearance in Healthy Eyes Fitted with Scleral Contact Lenses: A Pilot Study |
| title_sort | optical impact of corneal clearance in healthy eyes fitted with scleral contact lenses a pilot study |
| topic | scleral contact lens central corneal clearance optical quality refraction high order aberration |
| url | https://www.mdpi.com/2077-0383/11/12/3424 |
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