Comparison of phaco-chop, divide-and-conquer, and stop-and-chop phaco techniques in microincision coaxial cataract surgery.
J Cataract Refract Surg
; 39(10): 1463-9, 2013 Oct.
Article
em En
| MEDLINE
| ID: mdl-23910714
ABSTRACT
PURPOSE:
To compare the outcomes of coaxial microincision cataract surgery (MICS) performed with 3 phacoemulsification techniques (phaco-chop, divide-and-conquer, and stop-and-chop) according to cataract density.SETTING:
Bucheon St. Mary's Hospital, College of Medicine, Catholic University of Korea, Seoul, South Korea.DESIGN:
Prospective randomized clinical trial.METHODS:
Eyes with nuclear density from grade 2 to 4 were randomly subdivided into 3 groups (phaco-chop, divide-and-conquer, and stop-and-chop). Intraoperative measurements included ultrasound time (UST), mean cumulative dissipated energy (CDE), and balanced salt solution use. Clinical measurements included preoperative and 1 day, 1 month, and 2 month postoperative corrected distance visual acuity, central corneal thickness, and endothelial cell count.RESULTS:
Intraoperative measurements showed significantly less UST, CDE, and balanced salt solution use with the phaco-chop technique than with the divide-and-conquer and stop-and-chop techniques in the grade 4 cataract density group (P<.05). The percentage of endothelial cell loss was significantly lower in the phaco-chop group than in the divide-and-conquer and stop-and-chop groups in the grade 4 cataract density group 2 months after cataract surgery (P<.05).CONCLUSIONS:
All 3 techniques may be effective for coaxial MICS in mild and moderate cataracts. However, in eyes with hard cataract having coaxial MICS, the phaco-chop technique can be more effective for lens removal, with less corneal endothelial damage, than the divide-and-conquer and stop-and-chop techniques. FINANCIAL DISCLOSURE No author has a financial or proprietary interest in any material or method mentioned.
Texto completo:
1
Bases de dados:
MEDLINE
Assunto principal:
Catarata
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Facoemulsificação
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Implante de Lente Intraocular
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Microcirurgia
Tipo de estudo:
Clinical_trials
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Observational_studies
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Risk_factors_studies
Limite:
Aged
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Humans
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Middle aged
Idioma:
En
Revista:
J Cataract Refract Surg
Assunto da revista:
OFTALMOLOGIA
Ano de publicação:
2013
Tipo de documento:
Article
País de afiliação:
Estados Unidos