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Asia-Pacific Journal of Ophthalmology... 2020Extended depth-of-focus (EDOF) is a new intraocular lens (IOL) technology in the treatment of presbyopia. In contrast to multifocal (MF) IOLs, EDOF lenses create a... (Review)
Review
Extended depth-of-focus (EDOF) is a new intraocular lens (IOL) technology in the treatment of presbyopia. In contrast to multifocal (MF) IOLs, EDOF lenses create a single elongated focal point, rather than several foci, to enhance depth of focus. In this way, EDOF IOLs aim to reduce photic phenomena, glare, and halos, which have been reported in MF IOLs. A potential disadvantage is a decrease of retinal image quality if the amount of the aberrations is excessively increased. Frequently, EDOF IOLs are combined with MF optical designs; for this reason, EDOF IOLs are commonly a subject of confusion with optical multifocality concepts. The aim of this article is to clarify what an EDOF IOL is and to discuss the recently reported outcomes with these IOLs. We propose naming lenses that have combined optical designs as "hybrid IOLs."
Topics: Aphakia, Postcataract; Depth Perception; Humans; Lenses, Intraocular; Prosthesis Design; Refraction, Ocular; Visual Acuity
PubMed: 32511121
DOI: 10.1097/APO.0000000000000296 -
JAMA Ophthalmology Apr 2020Although intraocular lenses (IOLs) are often implanted in children, little is known whether primary IOL implantation or aphakia and contact lens correction results in... (Randomized Controlled Trial)
Randomized Controlled Trial
IMPORTANCE
Although intraocular lenses (IOLs) are often implanted in children, little is known whether primary IOL implantation or aphakia and contact lens correction results in better long-term visual outcomes after unilateral cataract surgery during infancy.
OBJECTIVE
To compare long-term visual outcomes with contact lens vs IOL correction following unilateral cataract surgery during infancy.
DESIGN, SETTING, AND PARTICIPANTS
This multicenter randomized clinical trial enrolled 114 infants with a unilateral congenital cataract who underwent cataract surgery with or without primary IOL implantation between 1 and 6 months of age. Data on long-term visual outcomes were collected when the children were age 10.5 years (July 14, 2015, to July 12, 2019) and analyzed from March 30 through August 6, 2019.
INTERVENTIONS
Intraocular lens implantation at the time of cataract surgery.
MAIN OUTCOMES AND MEASURES
Best-corrected visual acuity using the electronic Early Treatment Diabetic Retinopathy Study (E-ETDRS) testing protocol. Analysis was performed on an intention-to-treat basis.
RESULTS
Best-corrected visual acuity was measured at age 10.5 years for 110 of the 114 patients (96%) enrolled as infants. The participants included 58 girls (53%) and 52 boys (47%). Overall, 27 of the children (25%) had good (logMAR 0.30 [Snellen equivalent, 20/40] or better) visual acuity in the treated eye (12 [22%] in the IOL group and 15 [27%] in the aphakia group), but 50 children (44%) had a visual acuity of logMAR 1.00 (Snellen equivalent, 20/200) or worse (25 [44%] in the IOL group and 25 [44%] in the aphakia group). The median logMAR acuity in the treated eye was similar in children randomized to receive an IOL at the time of cataract extraction (0.89; interquartile range [IQR], 0.33-1.43 [Snellen equivalent, 20/159]) and those who remained aphakic (0.86; IQR, 0.30-1.46 [Snellen equivalent, 20/145]) (IQR, 0.30-1.46; Pā=ā.82). Although the overall difference in median visual acuity between the 2 groups was small, the estimate was imprecise (99% CI for the difference in medians was -0.54 to 0.47).
CONCLUSIONS AND RELEVANCE
As in previous phases of the study, visual acuity outcomes were highly variable with only 27 children (25%) achieving excellent visual acuity in their treated eye and 50 children (44%) having poor vision in the treated eye. Implanting an IOL at the time of cataract extraction was neither beneficial nor detrimental to the visual outcome.
TRIAL REGISTRATION
ClinicalTrials.gov Identifier: NCT00212134.
Topics: Aphakia, Postcataract; Cataract; Cataract Extraction; Child; Contact Lenses, Hydrophilic; Female; Follow-Up Studies; Humans; Infant; Lens Implantation, Intraocular; Lenses, Intraocular; Male; Pseudophakia; Vision, Binocular; Visual Acuity
PubMed: 32077909
DOI: 10.1001/jamaophthalmol.2020.0006 -
Ophthalmology Oct 2018
Topics: Aphakia; Humans; Infant; Lens Implantation, Intraocular
PubMed: 30243340
DOI: 10.1016/j.ophtha.2018.03.058 -
Journal of Ophthalmology 2022
PubMed: 35388354
DOI: 10.1155/2022/9841758 -
Asia-Pacific Journal of Ophthalmology... 2017Intrascleral sutureless intraocular lens (IOL) fixation utilizes direct haptic fixation within the sclera in eyes with deficient capsular support. This has advantages of... (Review)
Review
Intrascleral sutureless intraocular lens (IOL) fixation utilizes direct haptic fixation within the sclera in eyes with deficient capsular support. This has advantages of long-term stability, good control of tilt and decentration, and lesser pseudophakodonesis. This review summarizes various techniques for intrascleral haptic fixation, results, complications, adaptations in special situations, modifications of the technique, combination surgeries, and intrascleral capsular bag fixation techniques (glued capsular hook).
Topics: Aphakia; Humans; Lens Implantation, Intraocular; Lenses, Intraocular; Refraction, Ocular; Retrospective Studies; Sclera; Suture Techniques; Sutures
PubMed: 28726356
DOI: 10.22608/APO.2017158 -
Middle East African Journal of... 2014
Topics: Aphakia, Postcataract; Cataract Extraction; Female; Humans; Lens Implantation, Intraocular; Lens Subluxation; Lens, Crystalline; Lenses, Intraocular; Male; Sclera
PubMed: 25371650
DOI: No ID Found -
Journal of Ophthalmic & Vision Research 2017Giant retinal tears (GRTs) are full-thickness circumferential tears of more than 90 degrees of the retina that are associated with vitreous detachment. They are related... (Review)
Review
Giant retinal tears (GRTs) are full-thickness circumferential tears of more than 90 degrees of the retina that are associated with vitreous detachment. They are related to ocular trauma, high myopia, aphakia, pseudophakia, genetic mutations involving collagen and young age. GRTs comprise 1.5% of all rhegmatogenous retinal detachments and the average age of incidence is 42 years. GRTs are more common in males, as 72% of all cases occur in males. The incidence of GRTs in the general population is estimated to be 0.05 per 100,000 individuals. Common techniques used in the management of GRTs include fluid-air exchange, pneumatic retinopexy, scleral buckling, primary vitrectomy with gas or silicone oil tamponade, and combined scleral buckle-vitrectomies. However, management of GRTs poses a great challenge to physicians due to the high risk of intra- and post-operative complications and the many technical difficulties involved. The advent of perfluorocarbon liquids (PFCL) and the use of micro-incisional surgery for the treatment of GRTs has provided new opportunities for the management of GTRs. Today, retinal reattachment can be achieved in 94-100% of cases.
PubMed: 28299011
DOI: 10.4103/2008-322X.200158