Corneal densitometry after allogeneic small-incision intrastromal lenticule implantation for hyperopia correction
Abstract Purpose To evaluate corneal densitometry after allogeneic corneal small-incision intrastromal lenticule implantation (SILI) for hyperopia. Methods A retrospective study. Thirty-one hyperopic eyes of 24 patients who underwent SILI were enrolled in this study. Examinations took place preopera...
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| Format: | Article |
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BMC
2022-06-01
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| Series: | BMC Ophthalmology |
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| Online Access: | https://doi.org/10.1186/s12886-022-02454-3 |
| _version_ | 1811328296177106944 |
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| author | Jie Hou Yan Wang Jing Zhang Yulin Lei Zhixing Ma Ying Zhang Xiuyun Zheng |
| author_facet | Jie Hou Yan Wang Jing Zhang Yulin Lei Zhixing Ma Ying Zhang Xiuyun Zheng |
| author_sort | Jie Hou |
| collection | DOAJ |
| description | Abstract Purpose To evaluate corneal densitometry after allogeneic corneal small-incision intrastromal lenticule implantation (SILI) for hyperopia. Methods A retrospective study. Thirty-one hyperopic eyes of 24 patients who underwent SILI were enrolled in this study. Examinations took place preoperatively and 1 week, 1 month, 3 months, and 6 months postoperatively. Corneal densitometry (CD) from different concentric radial zones (0–2, 2–6, and 6–10 mm annulus) and layers (anterior, central, and posterior) were obtained using Scheimpflug imaging. The association between CD changes and the uncorrected distance visual acuity (UDVA), spherical equivalent (SE), central corneal thickness (CCT) and K value were examined. Results No serious intraoperative complications occurred during SILI. The mean total CD increased postoperatively compared to preoperatively (P < 0.01). However, no significant differences were found among the four subsequent follow-up time points (P > 0.05). At 6 months postoperatively, the CD values showed an increase of 2.71 ± 2.52, 2.23 ± 2.25, and 1.87 ± 2.46 at the 0–2, 2–6, and 6–10 mm annuli, respectively (all at P < 0.01). The anterior 120 μm displayed the highest densitometry before and after surgery (all at P < 0.01). No significant increase was found within the posterior 60 μm of the cornea (P > 0.05). No correlation was found between the CD and relevant parameters(all at P > 0.05). Conclusions SILI resulted in an increase in CD within the surgically altered area, however such change has no significant correlation with visual outcomes. |
| first_indexed | 2024-04-13T15:23:49Z |
| format | Article |
| id | doaj.art-e34e041bbde848b7868463f3577d0fbe |
| institution | Directory Open Access Journal |
| issn | 1471-2415 |
| language | English |
| last_indexed | 2024-04-13T15:23:49Z |
| publishDate | 2022-06-01 |
| publisher | BMC |
| record_format | Article |
| series | BMC Ophthalmology |
| spelling | doaj.art-e34e041bbde848b7868463f3577d0fbe2022-12-22T02:41:35ZengBMCBMC Ophthalmology1471-24152022-06-012211710.1186/s12886-022-02454-3Corneal densitometry after allogeneic small-incision intrastromal lenticule implantation for hyperopia correctionJie Hou0Yan Wang1Jing Zhang2Yulin Lei3Zhixing Ma4Ying Zhang5Xiuyun Zheng6Jinan Mingshui Eye HospitalTianjin Key Laboratory of Ophthalmology and Visual Science, Tianjin Eye Hospital, Clinical College of Ophthalmology, Tianjin Medical UniversityJinan Mingshui Eye HospitalJinan Mingshui Eye HospitalJinan Mingshui Eye HospitalJinan Mingshui Eye HospitalJinan Mingshui Eye HospitalAbstract Purpose To evaluate corneal densitometry after allogeneic corneal small-incision intrastromal lenticule implantation (SILI) for hyperopia. Methods A retrospective study. Thirty-one hyperopic eyes of 24 patients who underwent SILI were enrolled in this study. Examinations took place preoperatively and 1 week, 1 month, 3 months, and 6 months postoperatively. Corneal densitometry (CD) from different concentric radial zones (0–2, 2–6, and 6–10 mm annulus) and layers (anterior, central, and posterior) were obtained using Scheimpflug imaging. The association between CD changes and the uncorrected distance visual acuity (UDVA), spherical equivalent (SE), central corneal thickness (CCT) and K value were examined. Results No serious intraoperative complications occurred during SILI. The mean total CD increased postoperatively compared to preoperatively (P < 0.01). However, no significant differences were found among the four subsequent follow-up time points (P > 0.05). At 6 months postoperatively, the CD values showed an increase of 2.71 ± 2.52, 2.23 ± 2.25, and 1.87 ± 2.46 at the 0–2, 2–6, and 6–10 mm annuli, respectively (all at P < 0.01). The anterior 120 μm displayed the highest densitometry before and after surgery (all at P < 0.01). No significant increase was found within the posterior 60 μm of the cornea (P > 0.05). No correlation was found between the CD and relevant parameters(all at P > 0.05). Conclusions SILI resulted in an increase in CD within the surgically altered area, however such change has no significant correlation with visual outcomes.https://doi.org/10.1186/s12886-022-02454-3CorneaDensitometryHyperopiaLenticule implantationScheimpflug |
| spellingShingle | Jie Hou Yan Wang Jing Zhang Yulin Lei Zhixing Ma Ying Zhang Xiuyun Zheng Corneal densitometry after allogeneic small-incision intrastromal lenticule implantation for hyperopia correction BMC Ophthalmology Cornea Densitometry Hyperopia Lenticule implantation Scheimpflug |
| title | Corneal densitometry after allogeneic small-incision intrastromal lenticule implantation for hyperopia correction |
| title_full | Corneal densitometry after allogeneic small-incision intrastromal lenticule implantation for hyperopia correction |
| title_fullStr | Corneal densitometry after allogeneic small-incision intrastromal lenticule implantation for hyperopia correction |
| title_full_unstemmed | Corneal densitometry after allogeneic small-incision intrastromal lenticule implantation for hyperopia correction |
| title_short | Corneal densitometry after allogeneic small-incision intrastromal lenticule implantation for hyperopia correction |
| title_sort | corneal densitometry after allogeneic small incision intrastromal lenticule implantation for hyperopia correction |
| topic | Cornea Densitometry Hyperopia Lenticule implantation Scheimpflug |
| url | https://doi.org/10.1186/s12886-022-02454-3 |
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