1. Many ophthalmic technicians are familiar with fitting standard soft lenses that correct hyperopia and myopia. There is less confidence, however, in their proficiency with fitting soft toric lenses that correct astigmatism. 2. Performing accurate keratometry and refraction is an essential first step in fitting soft toric lenses. Familiarity with the different types of toric lenses is integral to an effective fit. 3. Knowledge of front and back surface toric lenses and their indications is of primary concern and allows for an effortless and successful fit.
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Clin Optom (Auckl)
January 2025
Research Department, Southern College of Optometry, Memphis, TN, USA.
Purpose: To determine the performance of TOTAL30 for Astigmatism (T30fA; Alcon; Fort Worth, TX, USA) contact lenses (CLs) in existing CL wearers who are also frequent digital device users.
Methods: This 1-month, 3-visit study recruited adult, 18- to 40-year-old subjects who were required to use daily digital devices for at least 8 hours per day. All subjects were refit into T30fA CLs.
BMC Ophthalmol
January 2025
Department of Ophthalmology and Visual Sciences, McGill University, 5252 Maisonneuve Blvd W, 4th floor,, Montreal, Québec, H4A 3S5, Canada.
Objective: To assess refractive and visual outcomes of a spherical Implantable Collamer Lens (ICL) followed by planned postoperative adjunctive laser-assisted in situ keratomileusis (LASIK) in the treatment of high compound hyperopic astigmatism.
Methods: In this prospective, multi-center, multi-surgeon, single-arm trial, eyes with ≥ 3.50 D hyperopia and ≥ 2.
BMC Ophthalmol
January 2025
Department of Ophthalmology, Peking University Third Hospital, 49 North Garden Rd., Haidian District, Beijing, China.
Background: This study aims to comprehensively evaluate the predictive accuracy of six widely used toric intraocular lens (IOL) calculators in eyes undergoing cataract surgery with toric IOL implantation.
Methods: This retrospective study reviewed 53 eyes of 53 patients that underwent cataract extraction with toric IOL implantation using Zeiss 709 M. Six toric IOL calculators were evaluated: Barrett toric calculator (with predicted PCA, measured PCA, and TK), Kane formula (predicted PCA), and EVO 2.
Acta Med Philipp
December 2024
Department of Ophthalmology and Visual Sciences, Philippine General Hospital, University of the Philippines Manila, Manila, Philippines.
Objective: Toric intraocular lens implantation has been used to correct corneal astigmatism during cataract surgery. The study aimed to compare the visual outcomes between manual vs markerless toric intraocular lens implantation in astigmatic correction.
Methods: The medical records of patients at American Eye Center who underwent phacoemulsification by multiple surgeons with insertion of monofocal or multifocal toric lenses via manual marking and markerless method from 2010-2019 were reviewed.
Clin Exp Optom
January 2025
Eurolens Research, Division of Pharmacy and Optometry, The University of Manchester, Manchester, UK.
Clinical Relevance: Knowledge of contact lens prescribing trends can (a) assist practitioners to benchmark their own prescribing habits, (b) help the contact lens industry understand preferred products, and (c) support academics in scholarly writings.
Background: This work aims to document contact lens prescribing trends in Australia over the past quarter of a century.
Methods: An annual survey of contact lens prescribing trends was conducted in Australia each year from 2000 to 2024, inclusive, by asking optometrists to provide information relating to 10 consecutive contact lens fits undertaken between January and March.
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