Comparison of Phaco-chop and Divide and Conquer Methods in Grade 3-4 Cataract Patients

Ophthalmology Research: An International Journal

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Title Comparison of Phaco-chop and Divide and Conquer Methods in Grade 3-4 Cataract Patients
Creator Yiğit, Kenan
Description Purpose: To compare the outcomes of Grade3-4 cataract surgery performed with 2 phacoemulsification techniques (phaco-chop and divide-and-conquer).
Setting: Ministry of Health Tuzla State Hospital, Istanbul, Turkey.
Design: Prospective randomized clinical trial.
Methods: This is prospective and randomized(double blind) study cataract surgery using two different techniques of nuclear fragmentation performed at the Tuzla State Hospital.100 patients eye with nuclear density from grade 3 to 4 were randomly subdivided into 2 groups (phaco-chop and divide-and-conquer). Intraoperative measurements included Phaco time (PT), effective phaco time(EPT), mean phaco power(MPP). Clinical measurements included preoperative and  postoperative , 7. day, 30. day, and corrected distance visual acuity(BCVA), time to achieve BCVA, corneal edema rate and time to disappear corneal edema.
Results: Intraoperative measurements showed significantly less PT, EPT, and corneal edema with the phaco-chop technique than divide-and-conquer techniques in the grade 3-4 cataract density group (P<0.05).
Conclusions: 2 techniques may be effective for cataract surgery in mild and moderate cataracts. However, in eyes with hard cataract the phaco-chop technique can be more effective for lens removal, with less Phaco time and corneal edema, then the divide-and-conquer technique.
Financial Disclosure: No author has a financial or proprietary interest in any material, method or device mentioned.
Publisher SCIENCEDOMAIN international
Date 2019-08-01
Type info:eu-repo/semantics/article
Format application/pdf
Source Ophthalmology Research: An International Journal; 2019 - Volume 10 [Issue 3]; 1-5
Language eng
Rights Copyright (c) 2019 © 2019 Yiğit; This is an Open Access article distributed under the terms of the Creative Commons Attribution License (, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.

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