Implantation of intrastromal corneal segments for the correction of posttraumatic cicatricial corneal astigmatism
Purpose: to study the possibility of the correction of post-traumatic cicatricial corneal astigmatism (PССA) by implanting intrastromal corneal segments (ICS) with a femtosecond laser. Materials and methods. We operated 28 patients (28 eyes) aged 18 to 70 (averagely 37.5 ± 13.2 years) with astigmati...
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| Format: | Article |
| Language: | Russian |
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Real Time Ltd
2018-10-01
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| Series: | Российский офтальмологический журнал |
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| Online Access: | https://roj.igb.ru/jour/article/view/74 |
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| author | V. V. Neroev E. V. Chentsova D. S. Belyaev A. V. Penkina |
| author_facet | V. V. Neroev E. V. Chentsova D. S. Belyaev A. V. Penkina |
| author_sort | V. V. Neroev |
| collection | DOAJ |
| description | Purpose: to study the possibility of the correction of post-traumatic cicatricial corneal astigmatism (PССA) by implanting intrastromal corneal segments (ICS) with a femtosecond laser. Materials and methods. We operated 28 patients (28 eyes) aged 18 to 70 (averagely 37.5 ± 13.2 years) with astigmatism from 2.5 to 10.0 D. Prior to ICS implantation, astigmatism as measured by autokeratorefractometry was 5.7 ± 2.8 D, by keratotopography 6.0 ± 2.6 D, and by visometry - 6.1 ± 2.1 D. In all cases the spherical equivalent of refraction (SER) was negative, averaging 4.5 ± 2.1 D. Results. The major refractive changes in the cornea were manifested in the first month after ICS implantation. The cylindrical component of clinical refraction and SER decreased significantly 6 months after the operation. Post-surgical uncorrected visual acuity proved to average 0.29 ± 0.09, which was significantly (by 0.19 ± 0.08) higher than before surgery (0.10 ± 0.06). Conclusion. The effectiveness and safety of PCCA correction by ICS implantation of ICS could be confirmed. The procedure was found to have a hyperopic effect. The intrastromal corneal tunnel formed for ICS was found to be precise, as shown by optical coherence tomography. It must however be borne in mind that residual astigmatism and residual SER require additional correction in all patients who underwent ICS implantation // Russian Ophthalmological Journal, 2017; 1: 36-42. doi: 10.21516/2072-0076-2017-10-1-36-42. |
| first_indexed | 2024-04-10T02:31:41Z |
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| institution | Directory Open Access Journal |
| issn | 2072-0076 2587-5760 |
| language | Russian |
| last_indexed | 2024-04-10T02:31:41Z |
| publishDate | 2018-10-01 |
| publisher | Real Time Ltd |
| record_format | Article |
| series | Российский офтальмологический журнал |
| spelling | doaj.art-9df85b3728e0455bb7b7ef21717615942023-03-13T07:54:28ZrusReal Time LtdРоссийский офтальмологический журнал2072-00762587-57602018-10-01101364210.21516/2072-0076-2017-10-1-36-4274Implantation of intrastromal corneal segments for the correction of posttraumatic cicatricial corneal astigmatismV. V. Neroev0E. V. Chentsova1D. S. Belyaev2A. V. Penkina3ФБГУ «Московский НИИ глазных болезней им. Гельмгольца» Минздрава РоссииФБГУ «Московский НИИ глазных болезней им. Гельмгольца» Минздрава РоссииФБГУ «Московский НИИ глазных болезней им. Гельмгольца» Минздрава РоссииФБГУ «Московский НИИ глазных болезней им. Гельмгольца» Минздрава РоссииPurpose: to study the possibility of the correction of post-traumatic cicatricial corneal astigmatism (PССA) by implanting intrastromal corneal segments (ICS) with a femtosecond laser. Materials and methods. We operated 28 patients (28 eyes) aged 18 to 70 (averagely 37.5 ± 13.2 years) with astigmatism from 2.5 to 10.0 D. Prior to ICS implantation, astigmatism as measured by autokeratorefractometry was 5.7 ± 2.8 D, by keratotopography 6.0 ± 2.6 D, and by visometry - 6.1 ± 2.1 D. In all cases the spherical equivalent of refraction (SER) was negative, averaging 4.5 ± 2.1 D. Results. The major refractive changes in the cornea were manifested in the first month after ICS implantation. The cylindrical component of clinical refraction and SER decreased significantly 6 months after the operation. Post-surgical uncorrected visual acuity proved to average 0.29 ± 0.09, which was significantly (by 0.19 ± 0.08) higher than before surgery (0.10 ± 0.06). Conclusion. The effectiveness and safety of PCCA correction by ICS implantation of ICS could be confirmed. The procedure was found to have a hyperopic effect. The intrastromal corneal tunnel formed for ICS was found to be precise, as shown by optical coherence tomography. It must however be borne in mind that residual astigmatism and residual SER require additional correction in all patients who underwent ICS implantation // Russian Ophthalmological Journal, 2017; 1: 36-42. doi: 10.21516/2072-0076-2017-10-1-36-42.https://roj.igb.ru/jour/article/view/74роговицарубец роговицыавторефкератометриякератотопографияастигматизмкоррекцияинтрастромальные роговичные сегментыпосттравматический рубцовый роговичный астигматизмcorneacorneal scarautorefractokeratometrykeratotopographyastigmatismvisual acuitycorrectionintrastromal corneal segmentspost-traumatic cicatricial corneal astigmatism |
| spellingShingle | V. V. Neroev E. V. Chentsova D. S. Belyaev A. V. Penkina Implantation of intrastromal corneal segments for the correction of posttraumatic cicatricial corneal astigmatism Российский офтальмологический журнал роговица рубец роговицы авторефкератометрия кератотопография астигматизм коррекция интрастромальные роговичные сегменты посттравматический рубцовый роговичный астигматизм cornea corneal scar autorefractokeratometry keratotopography astigmatism visual acuity correction intrastromal corneal segments post-traumatic cicatricial corneal astigmatism |
| title | Implantation of intrastromal corneal segments for the correction of posttraumatic cicatricial corneal astigmatism |
| title_full | Implantation of intrastromal corneal segments for the correction of posttraumatic cicatricial corneal astigmatism |
| title_fullStr | Implantation of intrastromal corneal segments for the correction of posttraumatic cicatricial corneal astigmatism |
| title_full_unstemmed | Implantation of intrastromal corneal segments for the correction of posttraumatic cicatricial corneal astigmatism |
| title_short | Implantation of intrastromal corneal segments for the correction of posttraumatic cicatricial corneal astigmatism |
| title_sort | implantation of intrastromal corneal segments for the correction of posttraumatic cicatricial corneal astigmatism |
| topic | роговица рубец роговицы авторефкератометрия кератотопография астигматизм коррекция интрастромальные роговичные сегменты посттравматический рубцовый роговичный астигматизм cornea corneal scar autorefractokeratometry keratotopography astigmatism visual acuity correction intrastromal corneal segments post-traumatic cicatricial corneal astigmatism |
| url | https://roj.igb.ru/jour/article/view/74 |
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