Mini-scleral contact lens for management of poor visual outcomes after intrastromal corneal ring segments implantation in keratoconus
Purpose: To evaluate the feasibility and efficacy of mini-scleral design (MSD) contact lenses to treat keratoconus patients who were unsatisfied with the results of corneal inlay. Methods: In this prospective interventional case series, 9 eyes of 6 keratoconus patients who were unsatisfied with the...
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| Format: | Article |
| Language: | English |
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Knowledge E
2016-01-01
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| Series: | Journal of Ophthalmic & Vision Research |
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| Online Access: | http://www.jovr.org/article.asp?issn=2008-322X;year=2016;volume=11;issue=3;spage=252;epage=257;aulast=Alipour |
| _version_ | 1828159849025765376 |
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| author | Fatemeh Alipour Firoozeh Rahimi Mohammad Naser Hashemian Zahra Ajdarkosh Ramak Roohipoor Masoumeh Mohebi |
| author_facet | Fatemeh Alipour Firoozeh Rahimi Mohammad Naser Hashemian Zahra Ajdarkosh Ramak Roohipoor Masoumeh Mohebi |
| author_sort | Fatemeh Alipour |
| collection | DOAJ |
| description | Purpose: To evaluate the feasibility and efficacy of mini-scleral design (MSD) contact lenses to treat keratoconus patients who were unsatisfied with the results of corneal inlay.
Methods: In this prospective interventional case series, 9 eyes of 6 keratoconus patients who were unsatisfied with the results of corneal inlay were fitted with MSD contact lenses. Demographic data, uncorrected visual acuity (UCVA), best spectacle-corrected visual acuity (BSCVA), and higher order aberrations (HOAs) were evaluated before contact lens fitting. Corrected visual acuity by placing the MSD contact lens with or without over-refraction, and HOAs were measured one hour after contact lens fitting. One month after contact lens wearing, corrected visual acuity by placing the MSD contact lens with over-refraction and possible contact lens related problems were assessed. Ocular comfort and contact lens handling problems were asked in follow-up visits. The data was analyzed using descriptive statistical tests.
Results: Nine eyes of 6 patients were successfully fitted with the mini-scleral lens. Fitting was ideal in 7 eyes and acceptable in 2 eyes. Mean corrected visual acuity by placing the MSD lens without over-refraction was 0.09 (range, 0.00-0.15) LogMAR which was significantly better than the mean BSCVA of 0.38 (range, 0.2-0.6) LogMAR (P = 0.007). The mean root mean square (RMS) of third-order coma and trefoil significantly decreased after MSD contact lens fitting (P = 0.012 and P = 0.015, respectively); however, changes in the fourth-order spherical aberration were not statistically significant (P = 0.336).
Conclusion: Mini-scleral contact lenses may be helpful in the management of visually unsatisfied patients after corneal inlay. |
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| format | Article |
| id | doaj.art-e1bddc2908344b5abeca5633829744b7 |
| institution | Directory Open Access Journal |
| issn | 2008-322X |
| language | English |
| last_indexed | 2024-04-12T00:08:44Z |
| publishDate | 2016-01-01 |
| publisher | Knowledge E |
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| series | Journal of Ophthalmic & Vision Research |
| spelling | doaj.art-e1bddc2908344b5abeca5633829744b72022-12-22T03:56:02ZengKnowledge EJournal of Ophthalmic & Vision Research2008-322X2016-01-0111325225710.4103/2008-322X.188400Mini-scleral contact lens for management of poor visual outcomes after intrastromal corneal ring segments implantation in keratoconusFatemeh AlipourFiroozeh RahimiMohammad Naser HashemianZahra AjdarkoshRamak RoohipoorMasoumeh MohebiPurpose: To evaluate the feasibility and efficacy of mini-scleral design (MSD) contact lenses to treat keratoconus patients who were unsatisfied with the results of corneal inlay. Methods: In this prospective interventional case series, 9 eyes of 6 keratoconus patients who were unsatisfied with the results of corneal inlay were fitted with MSD contact lenses. Demographic data, uncorrected visual acuity (UCVA), best spectacle-corrected visual acuity (BSCVA), and higher order aberrations (HOAs) were evaluated before contact lens fitting. Corrected visual acuity by placing the MSD contact lens with or without over-refraction, and HOAs were measured one hour after contact lens fitting. One month after contact lens wearing, corrected visual acuity by placing the MSD contact lens with over-refraction and possible contact lens related problems were assessed. Ocular comfort and contact lens handling problems were asked in follow-up visits. The data was analyzed using descriptive statistical tests. Results: Nine eyes of 6 patients were successfully fitted with the mini-scleral lens. Fitting was ideal in 7 eyes and acceptable in 2 eyes. Mean corrected visual acuity by placing the MSD lens without over-refraction was 0.09 (range, 0.00-0.15) LogMAR which was significantly better than the mean BSCVA of 0.38 (range, 0.2-0.6) LogMAR (P = 0.007). The mean root mean square (RMS) of third-order coma and trefoil significantly decreased after MSD contact lens fitting (P = 0.012 and P = 0.015, respectively); however, changes in the fourth-order spherical aberration were not statistically significant (P = 0.336). Conclusion: Mini-scleral contact lenses may be helpful in the management of visually unsatisfied patients after corneal inlay.http://www.jovr.org/article.asp?issn=2008-322X;year=2016;volume=11;issue=3;spage=252;epage=257;aulast=AlipourCorneal Inlay; Keratoconus; Mini-scleral Design Contact Lens |
| spellingShingle | Fatemeh Alipour Firoozeh Rahimi Mohammad Naser Hashemian Zahra Ajdarkosh Ramak Roohipoor Masoumeh Mohebi Mini-scleral contact lens for management of poor visual outcomes after intrastromal corneal ring segments implantation in keratoconus Journal of Ophthalmic & Vision Research Corneal Inlay; Keratoconus; Mini-scleral Design Contact Lens |
| title | Mini-scleral contact lens for management of poor visual outcomes after intrastromal corneal ring segments implantation in keratoconus |
| title_full | Mini-scleral contact lens for management of poor visual outcomes after intrastromal corneal ring segments implantation in keratoconus |
| title_fullStr | Mini-scleral contact lens for management of poor visual outcomes after intrastromal corneal ring segments implantation in keratoconus |
| title_full_unstemmed | Mini-scleral contact lens for management of poor visual outcomes after intrastromal corneal ring segments implantation in keratoconus |
| title_short | Mini-scleral contact lens for management of poor visual outcomes after intrastromal corneal ring segments implantation in keratoconus |
| title_sort | mini scleral contact lens for management of poor visual outcomes after intrastromal corneal ring segments implantation in keratoconus |
| topic | Corneal Inlay; Keratoconus; Mini-scleral Design Contact Lens |
| url | http://www.jovr.org/article.asp?issn=2008-322X;year=2016;volume=11;issue=3;spage=252;epage=257;aulast=Alipour |
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