Comparative analysis of the correction of irregular postkeratoplastic astigmatism with scleral lenses and intrastromal ring implantation
Background. Many patients after penetrating keratoplasty (PK) experience induced postkeratoplastic astigmatism, which is often irregular and causes an increase in corneal aberrations that reduce visual acuity and quality. The aim of the study. To conduct a comparative analysis of the effect of rigid...
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Scientific Сentre for Family Health and Human Reproduction Problems
2023-10-01
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| Series: | Acta Biomedica Scientifica |
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| Online Access: | https://www.actabiomedica.ru/jour/article/view/4357 |
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| author | M. V. Sinitsyn N. A. Pozdeyeva |
| author_facet | M. V. Sinitsyn N. A. Pozdeyeva |
| author_sort | M. V. Sinitsyn |
| collection | DOAJ |
| description | Background. Many patients after penetrating keratoplasty (PK) experience induced postkeratoplastic astigmatism, which is often irregular and causes an increase in corneal aberrations that reduce visual acuity and quality. The aim of the study. To conduct a comparative analysis of the effect of rigid gas permeable scleral lenses and the MyoRing implantation method on clinical and functional parameters in patients with IPA. Material and methods. The clinical study included 60 patients (60 eyes). The age of patients with IPA was from 25 to 42 years. All patients underwent penetrating keratoplasty. All patients were divided into two groups depending on the method for irregular postkeratoplastic astigmatism correction. Group I included 30 patients (30 eyes) who were fitted with rigid gas permeable scleral lenses. Group II consisted of 30 patients (30 eyes) who underwent implantation of the MyoRing into a penetrating corneal graft. The observation period was 1 year. Results. After 12 months of observation, there was a greater increase in uncorrected visual acuity by an average of 3 lines, in corrected visual acuity – by 2 lines; a greater decrease in corneal aberrations in photo- (root mean square (RMS) of total aberrations (RMS total) by 0.30 ± 0.08 µm, RMS of higher order aberrations (RMS HOA) – by 1.01 ± 0.24 μm) and mesopic conditions (RMS total – by 0.33 ± 0.09 μm, RMS HOA – by 0.08 ± 0.03 μm) in patients wearing rigid gas permeable scleral lenses compared with patients after MyoRing implantation into a penetrating corneal graft. Conclusion. Patients of group I, wearing rigid gas permeable scleral lenses, showed a greater improvement in visual acuity and a decrease in corneal aberrations in photo- and mesopic conditions compared to the patients of group II (after MyoRing implantation) at a follow-up period of 12 months. |
| format | Article |
| id | doaj-art-253dde4e044b46cd9482bf406d1491c7 |
| institution | Kabale University |
| issn | 2541-9420 2587-9596 |
| language | Russian |
| publishDate | 2023-10-01 |
| publisher | Scientific Сentre for Family Health and Human Reproduction Problems |
| record_format | Article |
| series | Acta Biomedica Scientifica |
| spelling | doaj-art-253dde4e044b46cd9482bf406d1491c72025-08-20T03:56:53ZrusScientific Сentre for Family Health and Human Reproduction ProblemsActa Biomedica Scientifica2541-94202587-95962023-10-018419920610.29413/ABS.2023-8.4.222620Comparative analysis of the correction of irregular postkeratoplastic astigmatism with scleral lenses and intrastromal ring implantationM. V. Sinitsyn0N. A. Pozdeyeva1Cheboksary Branch of the S. Fyodorov Eye Microsurgery Federal State InstitutionCheboksary Branch of the S. Fyodorov Eye Microsurgery Federal State InstitutionBackground. Many patients after penetrating keratoplasty (PK) experience induced postkeratoplastic astigmatism, which is often irregular and causes an increase in corneal aberrations that reduce visual acuity and quality. The aim of the study. To conduct a comparative analysis of the effect of rigid gas permeable scleral lenses and the MyoRing implantation method on clinical and functional parameters in patients with IPA. Material and methods. The clinical study included 60 patients (60 eyes). The age of patients with IPA was from 25 to 42 years. All patients underwent penetrating keratoplasty. All patients were divided into two groups depending on the method for irregular postkeratoplastic astigmatism correction. Group I included 30 patients (30 eyes) who were fitted with rigid gas permeable scleral lenses. Group II consisted of 30 patients (30 eyes) who underwent implantation of the MyoRing into a penetrating corneal graft. The observation period was 1 year. Results. After 12 months of observation, there was a greater increase in uncorrected visual acuity by an average of 3 lines, in corrected visual acuity – by 2 lines; a greater decrease in corneal aberrations in photo- (root mean square (RMS) of total aberrations (RMS total) by 0.30 ± 0.08 µm, RMS of higher order aberrations (RMS HOA) – by 1.01 ± 0.24 μm) and mesopic conditions (RMS total – by 0.33 ± 0.09 μm, RMS HOA – by 0.08 ± 0.03 μm) in patients wearing rigid gas permeable scleral lenses compared with patients after MyoRing implantation into a penetrating corneal graft. Conclusion. Patients of group I, wearing rigid gas permeable scleral lenses, showed a greater improvement in visual acuity and a decrease in corneal aberrations in photo- and mesopic conditions compared to the patients of group II (after MyoRing implantation) at a follow-up period of 12 months.https://www.actabiomedica.ru/jour/article/view/4357irregular postkeratoplastic astigmatismmyoringscleral lens |
| spellingShingle | M. V. Sinitsyn N. A. Pozdeyeva Comparative analysis of the correction of irregular postkeratoplastic astigmatism with scleral lenses and intrastromal ring implantation Acta Biomedica Scientifica irregular postkeratoplastic astigmatism myoring scleral lens |
| title | Comparative analysis of the correction of irregular postkeratoplastic astigmatism with scleral lenses and intrastromal ring implantation |
| title_full | Comparative analysis of the correction of irregular postkeratoplastic astigmatism with scleral lenses and intrastromal ring implantation |
| title_fullStr | Comparative analysis of the correction of irregular postkeratoplastic astigmatism with scleral lenses and intrastromal ring implantation |
| title_full_unstemmed | Comparative analysis of the correction of irregular postkeratoplastic astigmatism with scleral lenses and intrastromal ring implantation |
| title_short | Comparative analysis of the correction of irregular postkeratoplastic astigmatism with scleral lenses and intrastromal ring implantation |
| title_sort | comparative analysis of the correction of irregular postkeratoplastic astigmatism with scleral lenses and intrastromal ring implantation |
| topic | irregular postkeratoplastic astigmatism myoring scleral lens |
| url | https://www.actabiomedica.ru/jour/article/view/4357 |
| work_keys_str_mv | AT mvsinitsyn comparativeanalysisofthecorrectionofirregularpostkeratoplasticastigmatismwithsclerallensesandintrastromalringimplantation AT napozdeyeva comparativeanalysisofthecorrectionofirregularpostkeratoplasticastigmatismwithsclerallensesandintrastromalringimplantation |