Document Detail

Half-moon supracapsular nucleofractis phacoemulsification: safety, efficacy, and functionality.
MedLine Citation:
PMID:  19006745     Owner:  NLM     Status:  MEDLINE    
PURPOSE: To compare the safety, efficacy, and functionality of half-moon supracapsular phacoemulsification, a variation of the nucleofractis technique, with those of the stop-and-chop technique. SETTING: Atatürk Training and Research Hospital, 2nd Ophthalmology Department, Ankara, Turkey. METHODS: This prospective randomized study comprised 100 eyes having phacoemulsification with the half-moon supracapsular (Group 1, 50 eyes) or stop-and-chop (Group 2, 50 eyes) technique. The half-moon supracapsular technique is based on hydrodissection-assisted partial prolapse of the nucleus. After the prolapsed nucleus is chopped horizontally and the first wedge removed, quadrant removal is performed endocapsularly. Follow-up examinations were at 1, 7, 30, and 90 days. RESULTS: The 2 groups were similar in demographic features and surgical difficulty factors. There was no difference in the complication rate. The phaco time (mean: Group 1, 0.2 minutes +/- 0.1 (SD); Group 2, 0.4 +/- 0.4 minutes), average power (mean 11.3% +/- 6.9% and 18.3% +/- 7.3%, respectively), effective phaco time (1.7 +/- 1.8 seconds and 4.8 +/- 6.5 seconds, respectively), and total operation time (12.3 +/- 3.2 minutes and 14.3 +/- 4.3 minutes, respectively) were significantly lower in Group 1 than in Group 2. One day postoperatively, the increase in central corneal thickness increase was significantly greater in Group 1 (P = 0.011), with no significant differences thereafter. The visual acuity increase and contrast sensitivity scores at 90 days were similar in the groups. CONCLUSIONS: The half moon supracapsular technique shortened the phacoemulsification procedure and lowered phaco energy, indicating it protects surrounding intraocular tissue. There was no difference between techniques in reliability and functionality.
Izzet Can; Tamer Takmaz; Ipek Genç
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Publication Detail:
Type:  Journal Article; Randomized Controlled Trial    
Journal Detail:
Title:  Journal of cataract and refractive surgery     Volume:  34     ISSN:  0886-3350     ISO Abbreviation:  J Cataract Refract Surg     Publication Date:  2008 Nov 
Date Detail:
Created Date:  2008-11-13     Completed Date:  2008-12-16     Revised Date:  -    
Medline Journal Info:
Nlm Unique ID:  8604171     Medline TA:  J Cataract Refract Surg     Country:  United States    
Other Details:
Languages:  eng     Pagination:  1958-65     Citation Subset:  IM    
Atatürk Training and Research Hospital, 2nd Ophthalmology Department, Ankara, Turkey.
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MeSH Terms
Contrast Sensitivity / physiology
Lens Capsule, Crystalline / surgery
Lens Implantation, Intraocular
Phacoemulsification / adverse effects,  methods*
Prospective Studies
Pseudophakia / physiopathology
Refraction, Ocular / physiology
Treatment Outcome
Visual Acuity / physiology

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