Stromal lenticule addition keratoplasty with corneal crosslinking for corneal ectasia secondary to FS-LASIK: a case series
| Title: | Stromal lenticule addition keratoplasty with corneal crosslinking for corneal ectasia secondary to FS-LASIK: a case series |
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| Authors: | Li-Xiang Wang, Ying-Ping Deng, Meng-Zhen Xie, Ke Ma, Hong-Bo Yin, Qiong Wang, Rui Gong, Jing Tang |
| Source: | International Journal of Ophthalmology, Vol 17, Iss 3, Pp 596-602 (2024) |
| Publisher Information: | Press of International Journal of Ophthalmology (IJO PRESS), 2024. |
| Publication Year: | 2024 |
| Collection: | LCC:Ophthalmology |
| Subject Terms: | corneal ectasia, femtosecond laser-assisted in situ keratomileusis, stromal lenticule addition keratoplasty, corneal crosslinking, corneal thickness, corneal biomechanics, Ophthalmology, RE1-994 |
| More Details: | AIM: To explore the clinical efficacy and safety of stromal lenticule addition keratoplasty (SLAK) with corneal crosslinking (CXL) on patients with corneal ectasia secondary to femtosecond laser-assisted in situ keratomileusis (FS-LASIK). METHODS: A series of 5 patients undertaking SLAK with CXL for the treatment of corneal ectasia secondary to FS-LASIK were followed for 4-9mo. The lenticules were collected from patients undertaking small incision lenticule extraction (SMILE) for the correction of myopia. Adding a stromal lenticule was aimed at improving the corneal thickness for the safe application of crosslinking and compensating for the thin cornea to improve its mechanical strength. RESULTS: All surgeries were conducted successfully with no significant complications. Their best corrected visual acuity (BCVA) ranged from 0.05 to 0.8-2 before surgery. The pre-operational total corneal thickness ranged from 345-404 μm and maximum keratometry (Kmax) ranged from 50.8 to 86.3. After the combination surgery, both the corneal keratometry (range 55.9 to 92.8) and total corneal thickness (range 413-482 μm) significantly increased. Four out of 5 patients had improvement of corneal biomechanical parameters (reflected by stiffness parameter A1 in Corvis ST). However, 3 patients showed decreased BCVA after surgery due to the development of irregular astigmatism and transient haze. Despite the onset of corneal edema right after SLAK, the corneal topography and thickness generally stabilized after 3mo. CONCLUSION: SLAK with CXL is a potentially beneficial and safe therapy for advanced corneal ectasia. Future work needs to address the poor predictability of corneal refractometry and compare the outcomes of different surgical modes. |
| Document Type: | article |
| File Description: | electronic resource |
| Language: | English |
| ISSN: | 2222-3959 2227-4898 |
| Relation: | http://ies.ijo.cn/en_publish/2024/3/20240324.pdf; https://doaj.org/toc/2222-3959; https://doaj.org/toc/2227-4898 |
| DOI: | 10.18240/ijo.2024.03.24 |
| Access URL: | https://doaj.org/article/6e3dbdb1883149a5b7ef3a9fd7834b4b |
| Accession Number: | edsdoj.6e3dbdb1883149a5b7ef3a9fd7834b4b |
| Database: | Directory of Open Access Journals |
| ISSN: | 22223959 22274898 |
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| DOI: | 10.18240/ijo.2024.03.24 |
| Published in: | International Journal of Ophthalmology |
| Language: | English |