Publication: Corneal endothelial changes after divide and conquer versus chip and flip phacoemulsification
Issued Date
1997-01-01
Resource Type
ISSN
08863350
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2-s2.0-0030801972
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Mahidol University
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SCOPUS
Bibliographic Citation
Journal of Cataract and Refractive Surgery. Vol.23, No.7 (1997), 1006-1012
Suggested Citation
P. Kosrirukvongs, S. G. Slade, R. G. Berkeley Corneal endothelial changes after divide and conquer versus chip and flip phacoemulsification. Journal of Cataract and Refractive Surgery. Vol.23, No.7 (1997), 1006-1012. doi:10.1016/S0886-3350(97)80072-7 Retrieved from: https://repository.li.mahidol.ac.th/handle/20.500.14594/18199
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Title
Corneal endothelial changes after divide and conquer versus chip and flip phacoemulsification
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Abstract
Purpose: To evaluate changes in central corneal endothelial coils and corneal thickness after divide and conquer phacoemulsification and chip and flip phacoemulsification. Setting: Houston Eye Clinic, Houston, Texas, USA. Methods: Forty-four eyes were randomly assigned to one of two groups to have divide and conquer (D/C Group) or chip and flip (C/F Group) phacoemulsification with implantation of a posterior chamber, foldable, silicone intraocular lens performed by one surgeon. Of these, 41 eyes of 37 patients (22 D/C Group, 19 C/F Group) met the inclusion criteria. All surgeries were uneventful. A complete eye examination including specular microscopy and pachymetry was performed preoperatively and 1 week and 1 and 3 months postoperatively. Results: There were no significant between-group differences in any of the following means: sex; age; time at 70% phaco power; total phacoemulsification time. No correlation was found between ultrasound time and increased corneal thickness except for a significant increase in percentage of hexagonal cells in the C/F Group at 1 month. The only statistically significant between-group differences were greater endothelial cell loss in the C/F Group at 1 month and the percentage change in hexagonal coils at 1 week (1.1% increase, D/C Group; 10.7% decrease, C/F Group). Conclusion: The divide and conquer technique led to less endothelial loss and hexagonal cell change than the chip and flip technique, although at 3 months the differences were not significant.