Clinical comparative observation of SMILE operation design of different thickness of corneal cap

AIM: To compare the impact of different thickness of corneal cap design on small incision lenticule extraction(SMILE)operation. <p>METHODS: Forty-six cases of myopia patients(92 eyes)intends to SMILE operation in our hospital were collected, and were randomly divided into 2 groups: corneal cap...

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Main Author: Jian-Hua Mu
Format: Article
Language:English
Published: Press of International Journal of Ophthalmology (IJO PRESS) 2015-07-01
Series:Guoji Yanke Zazhi
Subjects:
Online Access:http://ies.ijo.cn/cn_publish/2015/7/201507055.pdf
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spelling doaj-1957381232ea48cca0107ae093f4ccf22020-11-24T21:29:45ZengPress of International Journal of Ophthalmology (IJO PRESS)Guoji Yanke Zazhi1672-51231672-51232015-07-011571296129810.3980/j.issn.1672-5123.2015.7.55Clinical comparative observation of SMILE operation design of different thickness of corneal capJian-Hua Mu0Department of Ophthalmology, Luoyang Third People's Hospital, Luoyang 471002, Henan Province, ChinaAIM: To compare the impact of different thickness of corneal cap design on small incision lenticule extraction(SMILE)operation. <p>METHODS: Forty-six cases of myopia patients(92 eyes)intends to SMILE operation in our hospital were collected, and were randomly divided into 2 groups: corneal cap thickness design for 110μm in group A and 120μm in group B. Other operation parameters designs were consistent. All patients were surgeried by the same surgeon. The incidence of opaque bubble layer(OBL), the ratio of difficult separation of lens, uncorrected visual acuity(UCVA)of each time points, and spherical equivalent(SE)were compared. <p>RESULTS: Intraoperative OBL incidence rate of 110μm group was higher than that of 120μm group with significant difference between the two group(<i>P</i><0.05). the ratio of difficult separation of lens was significantly different between the two groups: 110μm group was higher than in 120μm group(<i>P</i><0.05). The UCVA in the 120μm group was better than that in the 110μm group at postoperative 1 and 7d. But with the passage of time, postoperative 1, 3, and 6mo of UCVA of 2 groups was similar, showed no significant difference(<i>P</i>>0.05). SE were compared at 7d and 6mo after operation, showed no significant difference(<i>P</i>>0.05)<p>CONCLUSION: Compared with 120μm group, corneal cap design SMILE operation in 110μm group are more prone to OBL and difficult separation of lens, thus affects UCVA and postoperative recovery rate. There is no significant difference in long-term UCVA.http://ies.ijo.cn/cn_publish/2015/7/201507055.pdffemtosecond lasersmall incision lenticule extractioncorneal cap thicknessdiopteropaque bubble layer
collection DOAJ
language English
format Article
sources DOAJ
author Jian-Hua Mu
spellingShingle Jian-Hua Mu
Clinical comparative observation of SMILE operation design of different thickness of corneal cap
Guoji Yanke Zazhi
femtosecond laser
small incision lenticule extraction
corneal cap thickness
diopter
opaque bubble layer
author_facet Jian-Hua Mu
author_sort Jian-Hua Mu
title Clinical comparative observation of SMILE operation design of different thickness of corneal cap
title_short Clinical comparative observation of SMILE operation design of different thickness of corneal cap
title_full Clinical comparative observation of SMILE operation design of different thickness of corneal cap
title_fullStr Clinical comparative observation of SMILE operation design of different thickness of corneal cap
title_full_unstemmed Clinical comparative observation of SMILE operation design of different thickness of corneal cap
title_sort clinical comparative observation of smile operation design of different thickness of corneal cap
publisher Press of International Journal of Ophthalmology (IJO PRESS)
series Guoji Yanke Zazhi
issn 1672-5123
1672-5123
publishDate 2015-07-01
description AIM: To compare the impact of different thickness of corneal cap design on small incision lenticule extraction(SMILE)operation. <p>METHODS: Forty-six cases of myopia patients(92 eyes)intends to SMILE operation in our hospital were collected, and were randomly divided into 2 groups: corneal cap thickness design for 110μm in group A and 120μm in group B. Other operation parameters designs were consistent. All patients were surgeried by the same surgeon. The incidence of opaque bubble layer(OBL), the ratio of difficult separation of lens, uncorrected visual acuity(UCVA)of each time points, and spherical equivalent(SE)were compared. <p>RESULTS: Intraoperative OBL incidence rate of 110μm group was higher than that of 120μm group with significant difference between the two group(<i>P</i><0.05). the ratio of difficult separation of lens was significantly different between the two groups: 110μm group was higher than in 120μm group(<i>P</i><0.05). The UCVA in the 120μm group was better than that in the 110μm group at postoperative 1 and 7d. But with the passage of time, postoperative 1, 3, and 6mo of UCVA of 2 groups was similar, showed no significant difference(<i>P</i>>0.05). SE were compared at 7d and 6mo after operation, showed no significant difference(<i>P</i>>0.05)<p>CONCLUSION: Compared with 120μm group, corneal cap design SMILE operation in 110μm group are more prone to OBL and difficult separation of lens, thus affects UCVA and postoperative recovery rate. There is no significant difference in long-term UCVA.
topic femtosecond laser
small incision lenticule extraction
corneal cap thickness
diopter
opaque bubble layer
url http://ies.ijo.cn/cn_publish/2015/7/201507055.pdf
work_keys_str_mv AT jianhuamu clinicalcomparativeobservationofsmileoperationdesignofdifferentthicknessofcornealcap
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