J Cataract Refract Surg
Department of Ophthalmology, Stony Brook University, Stony Brook, New York, USA.
Published: March 2019
Purpose: To evaluate refractive outcomes of cataract surgery in previously vitrectomized eyes and compare the accuracy of intraocular lens (IOL) calculation formulas in this population.
Setting: Stony Brook University Hospital, Stony Brook, New York, USA.
Design: Retrospective case series.
Methods: All electronic medical records of patients who had phacoemulsification from 2013 to 2017 were reviewed. Patients who had previously had pars plana vitrectomy in the same eye were selected. Patients with a history of refractive surgery, silicone oil in the eye, or other factors preventing accurate IOL power calculation were excluded.
Results: The mean postoperative spherical equivalent was -0.16 diopter (D) ± 0.81 (SD) (n = 61). The mean prediction errors were 0.30 ± 0.82 D, -0.09 ± 0.76 D, 0.23 ± 0.76 D, 0.25 ± 0.81 D, 0.04 ± 0.85 D, 0.30 ± 0.82 D, 0.33 ± 0.79 D, and 0.45 ± 0.80 D with the Holladay 1, Wang/Koch (WKA) adjusted Holladay 1 (n = 14), Holladay 2 (n = 48), SRK/T, WKA SRK/T (n = 14), Hill-Radial Basis Function (n = 50), and Ladas formulas, respectively. The formula with the highest percentage of predictions within ±0.50 D of the postoperative outcome was the Holladay 2 (60.42%). Statistically significant differences between the predicted and actual refractive outcomes were found with all formulas (P < .05) except the WKA Holladay and WKA SRK/T. Intraclass correlation showed low repeatability (<0.50) for all formulas.
Conclusions: Refractive outcomes after cataract extraction in vitrectomized patients can be variable and more hyperopic than the predicted outcomes using traditional and newer IOL calculation methods. Thus, predicting refractive outcomes in this population is challenging, and patients should be counseled accordingly.
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http://dx.doi.org/10.1016/j.jcrs.2018.10.032 | DOI Listing |
Klin Monbl Augenheilkd
January 2025
Department of Ophthalmology, Pallas Kliniken, Olten/Bern/Zürich/Dübendorf, Switzerland.
Background: Extended monovision is a novel mix-and-match approach that has been recently introduced. It involves implanting an aspherical monofocal intraocular lens (IOL) for distance vision in the dominant eye, and a bifocal extended depth-of-focus (EDOF) IOL in the nondominant eye. The target refraction for the nondominant eye is - 1.
View Article and Find Full Text PDFBMJ Open
January 2025
Department of Cataract, Shuozhou Aier Eye Hospital, Shuozhou, China
Objectives: In order to estimate long-term trends of the years lived with disability (YLDs) for cataract due to high body mass index (BMI).
Design And Participants: Data were retrieved from the Global Burden of Disease (GBD) 2019. The global cases, age-standardised rates (ASR) of YLDs for cataract attributable to high BMI were described by age, sex, geographical location and sociodemographic index (SDI).
BMJ Open Ophthalmol
January 2025
Department of Eye and Vision Science, University of Liverpool, Liverpool, UK.
Purpose: To quantify the effect of cataract surgery on cornea shape.
Methods: Patients undergoing cataract surgery with standardised 2.75 mm surgical incisions at 110 degrees with a side port at 50 degrees were included.
J Optom
January 2025
Department of Ophthalmology, Peking University People's Hospital, Beijing, China; Eye Diseases and Optometry Institute, Beijing, China; Beijing Key Laboratory of Diagnosis and Therapy of Retinal and Choroid Diseases, Beijing, China; College of Optometry, Peking University Health Science Center, Beijing, China.
Purposes: To investigate the 12-month effectiveness of Diverse Segmented Defocus Optics (DSDO) and Defocus Incorporated Multiple Segments (DIMS) spectacle lenses in a real-world clinical population in myopic and pre-myopic Chinese children.
Methods: About 364 subjects prescribed DSDO or DIMS were enrolled. Axial length (AL) and cycloplegic spherical equivalent refraction (SER) changes over 12 months were measured.
BMJ Open Ophthalmol
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Ophthalmology, Royal Hospital for Children, Glasgow, UK.
Background: Very premature infants screened for retinopathy of prematurity (ROP) that do not develop ROP still experience serious visual developmental challenges, and while it is recommended that all children in the UK are offered preschool visual screening, we aimed to explore whether this vulnerable group requires dedicated follow-up.
Methods: We performed a real-world retrospective observational cohort study of children previously screened for ROP in NHS Greater Glasgow and Clyde (Scotland) between 2013 and 2015. We excluded those with any severity of ROP identified during screening.
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