Unlabelled: We describe a manual prechop technique to divide the nucleus using a cystotome. In the cystotome-assisted prechop technique, after the capsulorhexis, the surgeon-bent cystotome is inserted into the lens while the Nagahara chopper is set around the lens equator. The cystotome and the chopper are then brought together in the center to create a bisecting crack in the nucleus, dividing it cleanly into 2 hemispheres.
Financial Disclosure: No author has a financial or proprietary interest in any material or method mentioned.
Download full-text PDF |
Source |
|---|---|
| http://dx.doi.org/10.1016/j.jcrs.2014.11.015 | DOI Listing |
Publication Analysis
Top Keywords
Similar Publications
Dr. Sohel Khan's prechopper and prechopping technique.
Indian J Ophthalmol
September 2024
Department of Ophthalmology, Dr S C Government Medical College, Nanded, Maharashtra, India.
The quest of every dedicated phaco surgeon is to develop skills to emulsify all forms of hard nuclei efficiently with minimal damage to the endothelium and reducing the risk of wound burn. Obtaining a pristine cornea the very next day in a hard cataract is a dream far from reality. Prechop means nuclear division without the use of phaco energy.
View Article and Find Full Text PDFComparison of the reverse chopper-assisted prechop and phaco-chop nucleotomy techniques during phacoemulsification for cataracts with grade III nuclei: a randomized controlled trial.
Ann Transl Med
January 2023
Beijing Tongren Eye Center, Beijing Tongren Hospital, Capital Medical University, Beijing Key Laboratory of Ophthalmology and Visual Sciences, Beijing, China.
Background: Phacoemulsification surgery is the standard treatment for cataract. However, excessive ultrasound (US) energy may cause injury to the corneal endothelium and other ocular tissues. Recently, a new prechop technique assisted with the reverse chopper is showed to be more efficient and safe, by splitting the nuclei in situ without using any US energy.
View Article and Find Full Text PDFDrill-and-prechop technique: modification of the drill-and-crack technique for mature cataracts.
BMC Ophthalmol
November 2022
Guangdong Hospital of Traditional Chinese Medicine, Zhuhai, China.
Background: There are some techniques for disassembly of hard nuclear. It is challenging in hard cataract surgery through microincision. The classic chop or prechop techniques often do not succeed,resulting in incomplete nuclear segmentation.
View Article and Find Full Text PDFBackground: To evaluate the safety and efficacy of the pre-chop technique using a novel reverse chopper vs. the classic stop-and-chop technique in phacoemulsification for patients with high myopia and associated grade III-IV nuclear cataracts.
Methods: In this prospective cohort study, a total of 44 consecutive patients (44 eyes) with grade III-IV nuclear cataracts who were admitted to our hospital for cataract surgery between March 2018 and September 2018 were enrolled.
Application of prechop technique in phacoemulsification for cataract patients with highly liquefied vitreous: a retrospective study.
BMC Ophthalmol
April 2022
State Key Laboratory of Ophthalmology, Zhongshan Ophthalmic Center, Sun Yat-Sen University, 54 South Xianlie Road, Guangzhou, 510060, China.
Background: Phacoemulsification using phaco-chop technique has many challenging features in cataract patients with highly liquefied vitreous. This study aimed to compare the intraoperative parameters and safety between prechop technique and traditional phaco-chop in phacoemulsification for these patients.
Methods: A total of 54 eyes of 54 patients with high myopia-related or post-vitrectomy cataract that underwent phacoemulsification combined with intraocular lens implantation were included in this retrospective study.
Want AI Summaries of new PubMed Abstracts delivered to your In-box?
Enter search terms and have AI summaries delivered each week - change queries or unsubscribe any time!