Lu K, Garcia M, Tian J, Karanjia R. Series of cataract surgeries with I-ring pupil expansion ring. World J Ophthalmol 2019; 8(1): 1-6 [DOI: 10.5318/wjo.v8.i1.1]
Corresponding Author of This Article
Kenneth Lu, MD, Assistant Professor, Doheny Eye Institute, University of California, Los Angeles, 622 W. Duarte Rd, Suite 101, Arcadia, CA 91007, United States. klu@doheny.org
Research Domain of This Article
Ophthalmology
Article-Type of This Article
Retrospective Cohort Study
Open-Access Policy of This Article
This article is an open-access article which was selected by an in-house editor and fully peer-reviewed by external reviewers. It is distributed in accordance with the Creative Commons Attribution Non Commercial (CC BY-NC 4.0) license, which permits others to distribute, remix, adapt, build upon this work non-commercially, and license their derivative works on different terms, provided the original work is properly cited and the use is non-commercial. See: http://creativecommons.org/licenses/by-nc/4.0/
World J Ophthalmol. Oct 16, 2019; 8(1): 1-6 Published online Oct 16, 2019. doi: 10.5318/wjo.v8.i1.1
Series of cataract surgeries with I-ring pupil expansion ring
Kenneth Lu, Martin Garcia, Jack Tian, Rustum Karanjia
Kenneth Lu, Martin Garcia, Jack Tian, Rustum Karanjia, Doheny Eye Institute, University of California, Los Angeles, CA 91007, United States
Author contributions: Lu K and Karanjia R designed the study; Garcia M and Tian J collected the data; Lu K prepared the manuscript.
Supported bya research grant from Beaver-Visited International, the manufacturer of the I-ring.
Institutional review board statement: The UCLA Institutional Review Board has approved the above-referenced study.
Informed consent statement: Since this was a retrospective review of cases already performed with no release of any personal information, our institutional review board has waived the need for informed consent of the specific patients.
Conflict-of-interest statement: The authors do not have any financial interest in the company or the device.
Open-Access: This article is an open-access article which was selected by an in-house editor and fully peer-reviewed by external reviewers. It is distributed in accordance with the Creative Commons Attribution Non Commercial (CC BY-NC 4.0) license, which permits others to distribute, remix, adapt, build upon this work non-commercially, and license their derivative works on different terms, provided the original work is properly cited and the use is non-commercial. See: http://creativecommons.org/licenses/by-nc/4.0/
Corresponding author: Kenneth Lu, MD, Assistant Professor, Doheny Eye Institute, University of California, Los Angeles, 622 W. Duarte Rd, Suite 101, Arcadia, CA 91007, United States. klu@doheny.org
Telephone: +1-626-2549010
Received: May 17, 2019 Peer-review started: May 20, 2019 First decision: May 30, 2019 Revised: August 28, 2019 Accepted: October 3, 2019 Article in press: October 4, 2019 Published online: October 16, 2019 Processing time: 68 Days and 5.6 Hours
ARTICLE HIGHLIGHTS
Research background
Pupil expansion rings are widely accepted as a useful tool in cataract surgery. However, there are no studies that compare different devices or examine in detail the decision to goes into the decision and clinical settings to use the device.
Research motivation
This study examines a new member of this class of device, providing advantages in design over previous devices. It also examines the co-morbidities associated with small pupil in the cataract milieu of 2019.
Research objectives
To document the safety profile and use of I-ring pupil expansion ring in a clinical practice. The study showed a better understanding of the challenges associated with small pupil cataract surgery and hopefully will assist cataract surgeons in dealing with these challenges.
Research methods
Retrospective review of case series.
Research results
A surprisingly high rate of complication and co-morbidities were found in this case series. Further innovations in dealing with zonular dehiscence, posterior capsule rupture, and dense cataracts need to be continually sought after.
Research conclusions
I-ring is a useful tool in the armamentarium of cataract surgery. It is less traumatic to the pupil than its predecessors due to its softer material in 360o engagement of the pupil. It helps to maintain pupil dilation in small pupil cases relating to pseudoexfoliation, IFIS and femtosecond laser induced myosis.
Research perspectives
This study illustrates that there are still challenges to be met in cataract surgery. Despite the technical advances with phaco fluidics, femtosecond laser, pupil expansion rings, dense cataracts with zonular problems and small pupils are still a challenge for cataract surgeons. Further research and innovations are still needed to address these problems.
