有晶状体眼后房型人工晶状体植入术矫正高度近视的临床观察

doi:10.3760/cma.j.issn.1674-845X.2014.12.005

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Abstract

Objective To observe the efficacy， safety and visual quality of phakic posterior chamber intraocular lens implantable collamer lens （PPC-ICL） for correcting high myopia. Methods In a prospective study of 50 eyes of 28 patients （14 eyes of 10 males and 36 eyes of 18 females） with an average spherical refractive error of -8.26±2.15 D and a spherical equivalent （SE） of -9.88±2.39 D. Thirty-six eyes were implanted with toric ICLs. The following indicators were compared： preoperative and postoperative uncorrected visual acuity （UCVA）， best corrected visual acuity （BCVA）， validity and safety analysis of the ICL surgeries， preoperative and 6 month postoperative wavefront aberrations， analysis of relevant indicators， and visual quality questionnaire scores six months after surgery. All patients were followed up for more than 6 months. Data were analyzed using a matched t test. Results Preoperative UCVA （logarithm visual table， 5 vision） and 1 day， 1 week and 6 months after surgery were 3.82±0.08， 4.76±0.26， 5.02±0.13 and 5.03±0.10. Visual acuity 6 months after surgery improved compared to preoperative acuity （t=72.88， P＜0.05）. Compared to preoperative BCVA， UCVA 6 months after surgery equal to， increased 1 row， 2 rows and above for 16， 26， 4 patients， respectively， which accounted for 92% of the total number of eyes. The amount of residual diopters after 6 months of PPC-ICL implant was less than ±0.50 D， accounting for 96%. Preoperative higher-order wavefront aberrations， spherical aberrations， coma， and trefoil were 0.309±0.098 μm， -0.008±0.111 μm， 0.197±0.103 μm， and 0.142±0.076 μm； and after surgery were 0.320±0.152 μm， -0.114±0.117 μm， 0.026±0.534 μm， and 0.204±0.122 μm. Total higher-order aberrations and spherical aberrations increased， but the difference was not statistically significant. Coma was reduced （t=-3.454， P<0.05）， and trefoil increased （t=2.556， P<0.05）. The results of the visual quality questionnaire showed that all 28 patients （50 eyes） were satisfied with the surgery； other scores in descending order （the higher the score， the greater the satisfaction） were day cycling/driving ease， near vision， night vision， computer， close reading， night cycling/driving ease， visual fatigue， halos， glare， dry eye. Conclusion ICL implants are a safe and effective surgical method for correcting high myopia， and all patients were satisfied with the surgery. The UCVA after surgery was obviously higher than the BCVA before surgery. Moreover， the procedure can also decrease coma， which can result in better visual quality.

Key words： Phakic intraocular lenses Myopia,degenerative Wavefront aberration Visual quality

Corresponding Authors: Zhou Qizhi， Email： zhouqizhi6931@sina.com

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Cite this article:

Li Li,Zhou Qizhi. Clinical study of phakic posterior collamer lens implantation for treating high myopia[J]. Chinese Journal of Optometry Ophthalmology and Visual science, 2014, 16(12): 722-725.

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https://www.cjoovs.com/EN/10.3760/cma.j.issn.1674-845X.2014.12.005 OR https://www.cjoovs.com/EN/Y2014/V16/I12/722

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