Rigid Gas-Permeable Semi-Scleral Contact Lenses after Radial Keratotomy: Apical Space, Lens Diameter, Limbal Clearance, Peripheral O-Rings, and Tear Exchange as Contact-Lens-Fitting Success Factors
The purpose of this case report is to verify if the adaptation of a rigid gas-permeable contact lens can improve VA and comfort in a patient with complications derived from radial keratotomy (RK) surgery. A semi-scleral contact lens was fitted in a 46-year-old female patient who had undergone bilate...
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| Format: | Article |
| Language: | English |
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MDPI AG
2022-06-01
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| Series: | Optics |
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| Online Access: | https://www.mdpi.com/2673-3269/3/3/20 |
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| author | Raúl Capote-Puente Alfredo López-Muñoz María-José Bautista-Llamas Carmen Silva-Viguera Marta Romero-Luna José-María Sánchez-González |
| author_facet | Raúl Capote-Puente Alfredo López-Muñoz María-José Bautista-Llamas Carmen Silva-Viguera Marta Romero-Luna José-María Sánchez-González |
| author_sort | Raúl Capote-Puente |
| collection | DOAJ |
| description | The purpose of this case report is to verify if the adaptation of a rigid gas-permeable contact lens can improve VA and comfort in a patient with complications derived from radial keratotomy (RK) surgery. A semi-scleral contact lens was fitted in a 46-year-old female patient who had undergone bilateral RK before 30 years. The uncorrected distance visual acuity in the right eye (RE) and left eye (LE) was 0.5 and 0.6 logMAR (minimum angle resolution), respectively. The RE and LE manifest refractions were +2.00 − 4.25 × 155 diopters (D) and +2.00 − 3.00 × 15 D, respectively. A semi-scleral rigid gas-permeable Rose K2 XL™ lens was fitted in both eyes. The central clearance was 400–450 µm in the RE and 300–350 µm in the LE. The semi-scleral corrected distance visual acuity in the RE and LE was 0.1 and 0.16 logMAR, respectively. Semi-scleral contact lenses are comfortable and a beneficial choice for patients after RK when associated with visual problems and intolerance to other therapeutic options. Semi-scleral lenses permit prolonged duration of use without discomfort, adverse alterations, and improve the feeling of glare in scotopic vision. In the present case, there were multiple factors that influenced the resolution, such as the amount of apical space, lens diameter, limbal clearance, peripheral O-rings, and tear exchange. |
| first_indexed | 2024-03-09T22:54:40Z |
| format | Article |
| id | doaj.art-dfc08b283b994a029fa8407952601d7b |
| institution | Directory Open Access Journal |
| issn | 2673-3269 |
| language | English |
| last_indexed | 2024-03-09T22:54:40Z |
| publishDate | 2022-06-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Optics |
| spelling | doaj.art-dfc08b283b994a029fa8407952601d7b2023-11-23T18:14:10ZengMDPI AGOptics2673-32692022-06-013320921510.3390/opt3030020Rigid Gas-Permeable Semi-Scleral Contact Lenses after Radial Keratotomy: Apical Space, Lens Diameter, Limbal Clearance, Peripheral O-Rings, and Tear Exchange as Contact-Lens-Fitting Success FactorsRaúl Capote-Puente0Alfredo López-Muñoz1María-José Bautista-Llamas2Carmen Silva-Viguera3Marta Romero-Luna4José-María Sánchez-González5Department of Physics of Condensed Matter, Optics Area, Vision Sciences Research Group (CIVIUS), Pharmacy School, University of Seville, 41004 Seville, SpainDepartment of Physics of Condensed Matter, Optics Area, Vision Sciences Research Group (CIVIUS), Pharmacy School, University of Seville, 41004 Seville, SpainDepartment of Physics of Condensed Matter, Optics Area, Vision Sciences Research Group (CIVIUS), Pharmacy School, University of Seville, 41004 Seville, SpainDepartment of Physics of Condensed Matter, Optics Area, Vision Sciences Research Group (CIVIUS), Pharmacy School, University of Seville, 41004 Seville, SpainDepartment of Physics of Condensed Matter, Optics Area, Vision Sciences Research Group (CIVIUS), Pharmacy School, University of Seville, 41004 Seville, SpainDepartment of Physics of Condensed Matter, Optics Area, Vision Sciences Research Group (CIVIUS), Pharmacy School, University of Seville, 41004 Seville, SpainThe purpose of this case report is to verify if the adaptation of a rigid gas-permeable contact lens can improve VA and comfort in a patient with complications derived from radial keratotomy (RK) surgery. A semi-scleral contact lens was fitted in a 46-year-old female patient who had undergone bilateral RK before 30 years. The uncorrected distance visual acuity in the right eye (RE) and left eye (LE) was 0.5 and 0.6 logMAR (minimum angle resolution), respectively. The RE and LE manifest refractions were +2.00 − 4.25 × 155 diopters (D) and +2.00 − 3.00 × 15 D, respectively. A semi-scleral rigid gas-permeable Rose K2 XL™ lens was fitted in both eyes. The central clearance was 400–450 µm in the RE and 300–350 µm in the LE. The semi-scleral corrected distance visual acuity in the RE and LE was 0.1 and 0.16 logMAR, respectively. Semi-scleral contact lenses are comfortable and a beneficial choice for patients after RK when associated with visual problems and intolerance to other therapeutic options. Semi-scleral lenses permit prolonged duration of use without discomfort, adverse alterations, and improve the feeling of glare in scotopic vision. In the present case, there were multiple factors that influenced the resolution, such as the amount of apical space, lens diameter, limbal clearance, peripheral O-rings, and tear exchange.https://www.mdpi.com/2673-3269/3/3/20radial keratotomyscleral lenscontact lensrefractive surgery |
| spellingShingle | Raúl Capote-Puente Alfredo López-Muñoz María-José Bautista-Llamas Carmen Silva-Viguera Marta Romero-Luna José-María Sánchez-González Rigid Gas-Permeable Semi-Scleral Contact Lenses after Radial Keratotomy: Apical Space, Lens Diameter, Limbal Clearance, Peripheral O-Rings, and Tear Exchange as Contact-Lens-Fitting Success Factors Optics radial keratotomy scleral lens contact lens refractive surgery |
| title | Rigid Gas-Permeable Semi-Scleral Contact Lenses after Radial Keratotomy: Apical Space, Lens Diameter, Limbal Clearance, Peripheral O-Rings, and Tear Exchange as Contact-Lens-Fitting Success Factors |
| title_full | Rigid Gas-Permeable Semi-Scleral Contact Lenses after Radial Keratotomy: Apical Space, Lens Diameter, Limbal Clearance, Peripheral O-Rings, and Tear Exchange as Contact-Lens-Fitting Success Factors |
| title_fullStr | Rigid Gas-Permeable Semi-Scleral Contact Lenses after Radial Keratotomy: Apical Space, Lens Diameter, Limbal Clearance, Peripheral O-Rings, and Tear Exchange as Contact-Lens-Fitting Success Factors |
| title_full_unstemmed | Rigid Gas-Permeable Semi-Scleral Contact Lenses after Radial Keratotomy: Apical Space, Lens Diameter, Limbal Clearance, Peripheral O-Rings, and Tear Exchange as Contact-Lens-Fitting Success Factors |
| title_short | Rigid Gas-Permeable Semi-Scleral Contact Lenses after Radial Keratotomy: Apical Space, Lens Diameter, Limbal Clearance, Peripheral O-Rings, and Tear Exchange as Contact-Lens-Fitting Success Factors |
| title_sort | rigid gas permeable semi scleral contact lenses after radial keratotomy apical space lens diameter limbal clearance peripheral o rings and tear exchange as contact lens fitting success factors |
| topic | radial keratotomy scleral lens contact lens refractive surgery |
| url | https://www.mdpi.com/2673-3269/3/3/20 |
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