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Comparative Analysis of Short-Term Visual Performance of Four Daily Simultaneous Vision Center-Near Multifocal Contact Lenses.

OBJECTIVES: To compare the visual performance and subjective satisfaction of four daily disposable multifocal contact lenses (MCLs) in presbyopic subjects. Likewise, a comparative analysis of the performance of symmetrical and asymmetrical near addition designs was performed. METHODS: Twenty presbyopic participants were enrolled in this randomized crossover study evaluating short-term visual performance. The assessed outcomes included distance, intermediate, and near visual acuity (VA), defocus curves, contrast sensitivity function (CSF), stereopsis, and patient satisfaction measured by a vis

Presbyopic correction use and its impact on quality of vision symptoms.

AIM: To assess real-world adoption of presbyopic correction and its impact on quality of vision. METHOD: The use of visual corrections by 529 sequential patients (aged 36 years to 85 years, 50.4% female) attending 4 optometric practices in diverse areas across London were surveyed by interview and completed the quality of vision (QoV) questionnaire to evaluate visual symptoms. RESULTS: Over half of the population (54.7%) managed without glasses at least some of the time, while between 30 and 40% wore distance, reading and progressive spectacles with those using Progressive Addition Lenses we

Changes in Ocular Parameters and Intraocular Lens Powers in Aging Cycloplegic Eyes.

PURPOSE: Age-related changes in lens elasticity and ciliary muscle contractility can affect how ocular parameters respond to cycloplegia, and therefore intraocular lens (IOL) power measurements calculated by formulas using anterior chamber depth (ACD), lens thickness (LT), or white-to-white (WtW) for effective lens position prediction can vary. In response, using swept-source optical biometry in prepresbyopic and presbyopic eyes, we investigated changes in ocular parameters and IOL power calculations attributable to cycloplegia. DESIGN: Cross-sectional study. METHODS: In 38 prepresbyopic and

Accommodative movements of the lens/capsule and the strand that extends between the posterior vitreous zonule insertion zone & the lens equator, in relation to the vitreous face and aging.

PURPOSE: To elucidate the dynamic accommodative movements of the lens capsule, posterior lens and the strand that attaches to the posterior … ommodative lens shape change. Future descriptions of the accommodative mechanism, and approaches to presbyopia therapy, may need to incorporate these findings.

Stated and actual willingness to pay for spectacles in Timor-Leste.

PURPOSE: To conduct a survey of willingness to pay for ready-made spectacles in the low-resource country of Timor-Leste, and, uniquely, subsequent validation with actual payment information. METHODS: A systematic random sampling strategy was used to apply a binary with follow-up stated willingness to pay methodology. Findings were validated by comparing the amount declared willing to pay with the actual price paid at a subsequent visit. RESULTS: Of the 152 participants (96.2%; mean age 50.9 +/- 13.2 years; 50.0% female) agreeable to wearing spectacles if required, 84.9% were willing to pay f

Optical quality of the eye after lens replacement with a pseudoaccommodating intraocular lens.

PURPOSE: To examine the optical quality of healthy presbyopic eyes before and after implantation of the pseudoaccommodating AcrySof ReSTOR Natural intraocular lens (IOL) (Alcon Laboratories) by measuring visual acuity and wavefront aberrations. SETTING: University of Valencia, Fernández-Vega Ophthalmological Institute, Valencia, Spain. METHODS: Monocular refraction and photopic distance (6 m) and near (0.33 m) visual acuities were determined before and after clear lens extraction with bilateral AcrySof ReSTOR Natural IOL implantation in 30 hyperopic eyes (+0.50 to +4.00 diopters [D]) of pres

ReSTOR diffractive versus Array 2 zonal-progressive multifocal intraocular lens: a contralateral comparison.

PURPOSE: To evaluate near and distance visual performance after implantation of a diffractive multifocal intraocular lens (MIOL) (AcrySof ReSTOR) or a refractive MIOL (Array 2) in bilateral cataract surgery. METHODS: In this prospective, comparative trial, 18 patients with bilateral cataract were selected to have lens surgery with asymmetric MIOL implantation. Eighteen eyes received ReSTOR MIOL and the 18 fellow eyes were implanted with Array 2. Five months after second lens implantation, main postoperative outcomes were uncorrected and distance corrected near visual acuities (VA). Secondary

Vision and hearing loss in older adults: "Double trouble".

Recent studies indicate that by age seventy, 21% of the people living in the United States have both vision and hearing loss. Dual sensory loss in the elderly has a significant effect on an individual's ability to socialize, communicate with others, and live independently. This article addresses the issues faced by older individuals who are hard of hearing and blind or visually impaired. Common causes and behavioral signs of hearing and vision loss are discussed. An emphasis is placed on the functional implications of the dual sensory impairment and possible accommodations and communication st

Multifocal intraocular lens implantation in prepresbyopic patients with unilateral cataract.

OBJECTIVE: To evaluate the benefits of implantation of a zonal-progressive multifocal intraocular lens (IOL) in prepresbyopic patients with unilateral cataract. STUDY DESIGN: Prospective, nonrandomized, comparative trial. PARTICIPANTS: Ninety-five eyes of 95 prepresbyopic patients aged between 14 and 40 years with either multifocal or monofocal IOL implantation at two institutions and with more than 6 months follow-up. INTERVENTIONS: Temporal clear corneal phacoemulsification and foldable IOL implantation was performed in all eyes. In 54 patients, a zonal-progressive optic multifocal IOL (A

Refractive lens exchange with the array multifocal intraocular lens.

PURPOSE: To study the safety and efficacy of refractive lens exchange as a refractive surgery modality in the presbyopic population. SETTING: Oregon Eye Institute, Eugene, Oregon, USA. METHODS: This retrospective review of patient charts included patient selection, preoperative evaluation, management of astigmatism, surgical technique, postoperative visual outcome, and complications. The study included 68 eyes comprising 32 bilateral and 4 unilateral refractive lens exchanges. RESULTS: All patients having bilateral refractive lens exchange achieved an uncorrected binocular visual acuity of

Extracting Quality of Life Information of Patients Diagnosed With Breast Cancer From Health Care Online Forum Posts: Data Feasibility Study.

BACKGROUND: Quality of life (QoL) questionnaires are used in many disease areas to measure the burden that a disease causes for patients, which help provide insights into disease impact, identify unmet medical needs, and inform patient-centered drug development and value assessment for treatments. The collection of data imposes both a significant burden on patients as well as effort on health care personnel, thus incurring high costs for the health care system. Given that patients share detailed information about their condition and treatment experiences on social media and patient forums, an

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… Comparison of literature review, social media listening, and qualitative interview research methods in generating patient-reported symptom and functional impact concepts of presbyopia. Ophthalmol Ther. 2023 Feb;12(1):501–516. doi: 10.1007/s40123-022-00620-w. doi. Medline. 43. … Social media listening to understand the lived experience of presbyopia: systematic search and content analysis study. J Med Internet Res. 2020 Sep 21;22(9):e18306. doi: 10.2196/18306. doi. Medline. 50. Voillot P, Riche B, Portafax M, et al. …

Hydrophobic Acrylic Trifocal IOL in Post-Laser Refractive Surgery Eyes: Visual Performance, Predictability, and Patient-Reported Outcomes.

PURPOSE: To evaluate clinical and patient-reported outcomes of the Clareon PanOptix (CP) hydrophobic acrylic trifocal IOL in eyes with previ … for distance and intermediate vision. CONCLUSIONS: The CP trifocal IOL is an effective option for presbyopia correction in post-myopic LRS eyes meeting predefined preoperative corneal aberration criteria. Refractive predictability depended on device-specific formula-keratometry combinations, with Barrett True-K yielding the highest observed ±0.50 D rates w …

Comparative Visual Performance and Optical Stability of Clareon Vivity and TECNIS PureSee EDoF IOLs in Cataract Patients.

PURPOSE: Cataracts and presbyopia affect millions worldwide, driving demand for advanced intraocular lenses (IOLs) to restore vision and reduce spectacle dependence. Extended depth of focus (EDoF) IOLs, such as Clareon Vivity and TECNIS PureSee, provide continuous vision with minimal disturbances. Given limited direct clinical comparisons, this research offers a head-to-head analysis of their visual performance and optical stability in cataract patients. PATIENTS AND METHODS: This retrospective cohort study analyzed 106 eyes from 72 patients who underwent phacoemulsification with Clareon Vivi…

Prevalence of Vision Impairment in South-East Asia and Oceania in 2020 Magnitude and Temporal Trends.

AIM: To determine the prevalence and trends in vision impairment in South-East Asia and Oceania over the past 30 years. METHODS: We conduct … around central fixation); we also estimated the prevalence of vision impairment due to uncorrected presbyopia (presenting near vision less than N6 or N8 at 40 cm where best-corrected distance visual acuity is ≥6/12). RESULTS: The prevalence of blindness in men and women in South-East Asia in 2020 was 3.05% (UI 2.58-3.49%) and 4.18% (UI 3.58-4.82%), respect …

Visual Performance Correlation with Corneal Aberrometric Profile and Pupil Size After Implantation of a Trifocal Hydrophobic IOL.

PURPOSE: To evaluate clinical outcomes obtained after cataract surgery involving the implantation of a trifocal hydrophobic intraocular lens (IOL) and to determine if pupil size and the corneal aberrometric profile correlate to visual acuity at different distances. METHODS: 49 patients (98 eyes) underwent bilateral cataract surgery with the placement of FineVision HP IOLs for presbyopia and were assessed at 1- and 3- to 6-months post-surgery. Postoperatively, refraction, monocular and binocular uncorrected and corrected distance visual acuity (UDVA and CDVA), uncorrected intermediate visual a…

Epidemiology and Burden of Astigmatism: A Systematic Literature Review.

SIGNIFICANCE: This is the first literature review to report the epidemiology, patient burden, and economic burden of astigmatism in the general adult population. The unmet needs of astigmatism patients with coexisting ocular conditions (cataract, glaucoma, dry eye, presbyopia, or macular degeneration) and risks associated with untreated astigmatism are also reviewed and reported. PURPOSE: This study aimed to identify, report, and summarize the published literature on epidemiology, patient burden, and economic burden of astigmatism using a systematic literature review. METHODS: MEDLINE, EMBAS…