Effect of small incision lenticule extraction on the treatment of myopia patients and the impact on corneal biomechanics
AIM:To investigate the effect of small incision lenticule extraction(SMILE)on the treatment of myopia patients, and the impact on corneal biomechanics.METHODS:Retrospective study. A total of 120 myopic patients(240 eyes)who were scheduled to undergo corneal refractive surgery in Anyang Eye Hospital...
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| Format: | Article |
| Language: | English |
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Press of International Journal of Ophthalmology (IJO PRESS)
2024-04-01
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| Series: | Guoji Yanke Zazhi |
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| Online Access: | http://ies.ijo.cn/cn_publish/2024/4/202404005.pdf |
| _version_ | 1797249344265519104 |
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| author | Han Baojun Shi Fangrong Hua Jiannan |
| author_facet | Han Baojun Shi Fangrong Hua Jiannan |
| author_sort | Han Baojun |
| collection | DOAJ |
| description | AIM:To investigate the effect of small incision lenticule extraction(SMILE)on the treatment of myopia patients, and the impact on corneal biomechanics.METHODS:Retrospective study. A total of 120 myopic patients(240 eyes)who were scheduled to undergo corneal refractive surgery in Anyang Eye Hospital from January 2020 to December 2021 were selected. The patients were divided into SMILE group(64 patients, 128 eyes)and transepithelial photorefractive keratectomy(TransPRK)group(56 patients, 112 eyes)according to the surgical treatment method. The two groups were compared in terms of uncorrected visual acuity, corneal biomechanics, corneal endothelial cell count, posterior corneal surface height and corneal surface regularity index at 1, 7 d, 1, 3, 6 mo and 1 a after surgery, and surgical complications.RESULTS:The uncorrected visual acuity of the SMILE group at 1, 7 d and 1 mo after surgery was better than that of the TransPRK group(all P<0.001), but there was no statistically significant difference between the groups at 3, 6 mo and 1 a after surgery(all P>0.05). Compared with preoperative values, corneal-compensated intraocular pressure, Goldmann-correlated intraocular pressure, corneal resistance factor, and corneal hysteresis in both groups showed a first decreasing and then increasing trend after surgery. The corneal-compensated intraocular pressure, Goldmann-correlated intraocular pressure, corneal resistance factor, and corneal hysteresis in the SMILE group at 1, 7 d and 1 mo after surgery were higher than those in the TransPRK group(all P<0.05), but there was no statistically significant difference between the groups at 3, 6 mo and 1 a after surgery(all P>0.05). There were no significant changes of corneal endothelial cell count and corneal posterior surface height in the two groups after surgery(all P>0.05). Furthermore, corneal surface regularity index of the two groups showed a first increasing and then decreasing trend after surgery, with no statistically significant difference between the groups(P>0.05), and there was no statistically significant difference in the incidence of postoperative complications between the groups(P>0.05).CONCLUSION:Compared with TransPRK, SMILE has less influence on corneal biomechanics, and better visual recovery in the early stage. There is no difference in long-term visual acuity between the two surgeries, and both have good safety and effectiveness. |
| first_indexed | 2024-04-24T20:28:59Z |
| format | Article |
| id | doaj.art-5e90ee09be8e438ebd39d075b5fe2e53 |
| institution | Directory Open Access Journal |
| issn | 1672-5123 |
| language | English |
| last_indexed | 2024-04-24T20:28:59Z |
| publishDate | 2024-04-01 |
| publisher | Press of International Journal of Ophthalmology (IJO PRESS) |
| record_format | Article |
| series | Guoji Yanke Zazhi |
| spelling | doaj.art-5e90ee09be8e438ebd39d075b5fe2e532024-03-22T03:14:27ZengPress of International Journal of Ophthalmology (IJO PRESS)Guoji Yanke Zazhi1672-51232024-04-0124452252710.3980/j.issn.1672-5123.2024.4.05202404005Effect of small incision lenticule extraction on the treatment of myopia patients and the impact on corneal biomechanicsHan Baojun0Shi Fangrong1Hua Jiannan2Refractive Surgery Center, Anyang Eye Hospital, Anyang 455000, Henan Province, ChinaRefractive Surgery Center, Anyang Eye Hospital, Anyang 455000, Henan Province, ChinaRefractive Surgery Center, Anyang Eye Hospital, Anyang 455000, Henan Province, ChinaAIM:To investigate the effect of small incision lenticule extraction(SMILE)on the treatment of myopia patients, and the impact on corneal biomechanics.METHODS:Retrospective study. A total of 120 myopic patients(240 eyes)who were scheduled to undergo corneal refractive surgery in Anyang Eye Hospital from January 2020 to December 2021 were selected. The patients were divided into SMILE group(64 patients, 128 eyes)and transepithelial photorefractive keratectomy(TransPRK)group(56 patients, 112 eyes)according to the surgical treatment method. The two groups were compared in terms of uncorrected visual acuity, corneal biomechanics, corneal endothelial cell count, posterior corneal surface height and corneal surface regularity index at 1, 7 d, 1, 3, 6 mo and 1 a after surgery, and surgical complications.RESULTS:The uncorrected visual acuity of the SMILE group at 1, 7 d and 1 mo after surgery was better than that of the TransPRK group(all P<0.001), but there was no statistically significant difference between the groups at 3, 6 mo and 1 a after surgery(all P>0.05). Compared with preoperative values, corneal-compensated intraocular pressure, Goldmann-correlated intraocular pressure, corneal resistance factor, and corneal hysteresis in both groups showed a first decreasing and then increasing trend after surgery. The corneal-compensated intraocular pressure, Goldmann-correlated intraocular pressure, corneal resistance factor, and corneal hysteresis in the SMILE group at 1, 7 d and 1 mo after surgery were higher than those in the TransPRK group(all P<0.05), but there was no statistically significant difference between the groups at 3, 6 mo and 1 a after surgery(all P>0.05). There were no significant changes of corneal endothelial cell count and corneal posterior surface height in the two groups after surgery(all P>0.05). Furthermore, corneal surface regularity index of the two groups showed a first increasing and then decreasing trend after surgery, with no statistically significant difference between the groups(P>0.05), and there was no statistically significant difference in the incidence of postoperative complications between the groups(P>0.05).CONCLUSION:Compared with TransPRK, SMILE has less influence on corneal biomechanics, and better visual recovery in the early stage. There is no difference in long-term visual acuity between the two surgeries, and both have good safety and effectiveness.http://ies.ijo.cn/cn_publish/2024/4/202404005.pdfsmall incision lenticule extraction(smile)transepithelial photorefractive keratectomycorneal biomechanicsvisual acuity |
| spellingShingle | Han Baojun Shi Fangrong Hua Jiannan Effect of small incision lenticule extraction on the treatment of myopia patients and the impact on corneal biomechanics Guoji Yanke Zazhi small incision lenticule extraction(smile) transepithelial photorefractive keratectomy corneal biomechanics visual acuity |
| title | Effect of small incision lenticule extraction on the treatment of myopia patients and the impact on corneal biomechanics |
| title_full | Effect of small incision lenticule extraction on the treatment of myopia patients and the impact on corneal biomechanics |
| title_fullStr | Effect of small incision lenticule extraction on the treatment of myopia patients and the impact on corneal biomechanics |
| title_full_unstemmed | Effect of small incision lenticule extraction on the treatment of myopia patients and the impact on corneal biomechanics |
| title_short | Effect of small incision lenticule extraction on the treatment of myopia patients and the impact on corneal biomechanics |
| title_sort | effect of small incision lenticule extraction on the treatment of myopia patients and the impact on corneal biomechanics |
| topic | small incision lenticule extraction(smile) transepithelial photorefractive keratectomy corneal biomechanics visual acuity |
| url | http://ies.ijo.cn/cn_publish/2024/4/202404005.pdf |
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