Unlabelled: Phaco chop is the preferred technique for many phaco surgeons. A critical step in chopping is the surgeon's ability to impale the nucleus in the middle of the core endonucleus, which can be challenging. We describe a clinical sign in the phaco chop technique to help surgeons identify the center of the endonucleus without estimating the nucleus thickness. This technique uses the morphological structure of the lens and the lens fiber orientation to precisely gauge the depth at which the surgeon should impale and hold the nucleus for effective chopping.
Financial Disclosure: No author has a financial or proprietary interest in any material or method mentioned.
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http://dx.doi.org/10.1016/j.jcrs.2013.07.001 | DOI Listing |
J Clin Med
November 2024
Department of Ophthalmology, Sato Eye Clinic, Nemoto 3-3, Matsudo-shi 271-0077, Chiba-ken, Japan.
: This study investigated the efficacy and safety of performing phacoemulsification using the eight-chop technique with iris hooks in patients with small pupils. The iris hooks and control groups each included 65 eyes. Cataract surgeries were performed using the eight-chop technique.
View Article and Find Full Text PDFOman J Ophthalmol
October 2024
Department of Ophthalmology, All India Institute of Medical Sciences, Bathinda, Punjab, India.
Purpose: To describe a bimanual method for management of posteriorly dislocated large nucleus fragment using standard chopper.
Methods: A 23G assistant handheld endoilluminator was used as light source through inferonasal self-sealing port, while the large nuclear fragment was broken into smaller fragments using phacofragmatome and standard phaco chopper.
Results: A case of posteriorly dislocated large nuclear fragment was operated using this technique.
Sci Rep
July 2024
Department of Ophthalmology, Clinical Centre Kenézy Gyula Campus, University of Debrecen, Bartók Béla Út 2-26, Debrecen, 4031, Hungary.
To compare unused phacoemulsification tips and those used different times with different techniques of cataract surgery (divide and conquer and chop), in vivo phacoemulsifications were performed with tips of different numbers of operation. These were compared with the same number of sterilized-only and unused tips with the help of an atomic force microscope. Comparison of roughness values (Sa, Sq), geometric and measurable flange length and surface was also performed (profile length %, area %).
View Article and Find Full Text PDFClin Ophthalmol
May 2024
Ophthalmology, Opty Group, Rio de Janeiro, RJ, Brazil.
Background: Cataract surgery is one of the most frequently performed eye surgeries worldwide, and among several techniques, phacoemulsification has become the standard of care due to its safety and efficiency. We evaluated the advantages and disadvantages of two phacoemulsification techniques: phaco-chop and divide-and-conquer.
Methods: PubMed, Cochrane, Embase, and Web of Science databases were queried for randomized controlled trial (RCT), prospective and retrospective studies that compared the phaco-chop technique over the divide-and-conquer technique and reported the outcomes of (1) Endothelial cell count change (ECC); (2) Ultrasound time (UST); (3) Cumulated dissipated energy (CDE); (4) Surgery time; and (5) Phacoemulsification time (PT).
Trials
February 2024
International Centre for Eye Health, London School of Hygiene and Tropical Medicine, Keppel Street, London, WC1E 7HT, UK.
Background: Cornea is the most important refractive media in the eye, and damage to the corneal endothelium is one of the most common causes of poor visual outcome following cataract surgery, particularly in those with predisposing factors. The role of phaco tip position during phacoemulsification on corneal endothelial damage is ambiguous, and there is no consensus regarding the most cornea-friendly phaco tip position (bevel-up or bevel-down). The objective of the trial is to compare the effect of phaco tip position (bevel-up vs.
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