Purpose: To analyze waste from intraocular lens (IOL) packaging across a variety of brands.
Setting: Private clinical practice.
Design: Prospective weight and composition analysis of all elements of unopened packages of IOLs sold in the United States-both preloaded and non-preloaded.
Methods: Samples were collected from multiple IOL companies in 2023. The primary end point for comparison was the total weight of each IOL package, because this generally correlates with the carbon footprint. The percentage of total weight contributed by paper, plastic, Tyvek, foil, sterile saline solution (fluid), metal, or glossy paper material was also calculated.
Results: The non-preloaded IOL package weights ranged from 29 g (Zeiss Lucia) to 80 g (RxSIGHT LAL). Most of the weight was attributable to paper, including the box and instructions for use (IFUs) pamphlet. The latter was generally the largest component within the box. The weights of preloaded IOL packages were generally higher than those of their non-preloaded counterparts and ranged from 67 g (Hoya iSert) to 116 g (Rayner RayOne Spheric).
Conclusions: Meaningful differences in IOL packaging weight and waste were noted across different models and manufacturers. Electronic IFUs linked to QR codes could replace the need for an IFU pamphlet within every box, significantly reducing the box's size, weight, and carbon footprint. Pairing preloaded IOL cartridges with autoclavable injectors could reduce associated waste. Because of the enormous global volume of IOL implantation, these waste-reducing strategies should be prioritized by IOL manufacturers.
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http://dx.doi.org/10.1097/j.jcrs.0000000000001514 | DOI Listing |
Eur J Ophthalmol
January 2025
Dept of Vitreoretinal Diseases, Sankara Nethralaya, Chennai, India.
Purpose: To evaluate long-term anatomical and functional outcomes in eyes undergoing scleral fixation of aniridic black diaphragm intraocular lens (BDIOL).
Methods: Total 38 eyes that underwent scleral fixation of BDIOL for secondary aniridia following ocular trauma with aphakia with absent posterior capsule or primary congenital aniridia with subluxated lens were retrospectively analyzed. Final visual acuity, early and late complications were examined.
Sci Rep
January 2025
Department of Ophthalmology, Kanazawa Medical University, Kahoku, Ishikawa, Japan.
Photic phenomena are more pronounced in presbyopia-corrected than in monofocal intraocular lens (IOL), causing dissatisfaction after cataract surgery. Photic Phenomena Test (PPT) quantifies photic phenomena in eyes with two types of presbyopia-corrected IOL. We examined the relationship between preoperative eye shape and pupil diameter.
View Article and Find Full Text PDFCureus
December 2024
Ophthalmology, University of Washington, Seattle, USA.
Objective: This study investigates the refractive accuracy of eight intraocular lens (IOL) power calculation formulas in patients with postoperative refractive surprise after phacoemulsification. It aims to determine if a different formula could result in better refractive outcomes in these eyes.
Methods And Analysis: We retrospectively reviewed consecutive patients undergoing uncomplicated phacoemulsification as a sole procedure between March 2007 and September 2020 at the University of Washington by glaucoma subspecialists as part of a study investigating cataract surgery in normal eyes.
Zhonghua Yan Ke Za Zhi
January 2025
Eye Institute of Shandong First Medical University, Qingdao Eye Hospital of Shandong First Medical University, State Key Laboratory Cultivation Base, Shandong Key Laboratory of Eye Diseases, School of Ophthalmology, Shandong First Medical University, Qingdao266071, China.
To evaluate the safety and efficacy of cataract extraction combined with multifocal intraocular lens (IOL) optic implantation in Berger space in school-age children with cataracts. It was a prospective study. The clinical data of school-age children with cataract who underwent cataract extraction combined with multifocal IOL implantation at Qingdao Eye Hospital of Shandong First Medical University from January 2019 to June 2023 were collected.
View Article and Find Full Text PDFClin Ophthalmol
December 2024
Riga Stradins University, Department of Ophthalmology, Riga, Latvia.
Purpose: This study evaluates the discrepancies between ACV measurements obtained from the Heidelberg Anterion and Zeiss IOLMaster 700 and investigates the significance of ACV and other ocular biometry parameters.
Patients And Methods: To investigate intraocular fluid circulation, a robust formula was developed for ACV measurement using the Zeiss IOLMaster 700. A pilot study was conducted to validate this formula, which relied on WTW, CCT, and ACD.
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