نتایج جستجو برای: monofocal lenses
تعداد نتایج: 13725 فیلتر نتایج به سال:
PURPOSE To characterize and measure the ocular aberrations in eyes implanted with monofocal intraocular lenses (IOLs) and to study any correlation between postoperative aberrations and surgical factors. METHODS A Tscherning aberroscope was used to measure the wavefront aberrations of 62 eyes that had undergone phacoemulsification with the implantation of foldable monofocal Acrysof MA60BM IOLs...
PurposeTo review the published literature assessing efficacy and safety of presbyopia-correcting intraocular lenses (IOLs) for treatment presbyopia after cataract removal.MethodsLiterature searches were undertaken in January 2018 September 2020 PubMed, Medline, Cochrane Library databases. This yielded 761 articles, which 34 met criteria inclusion this assessment assigned a level evidence rating...
PURPOSE The purpose of this study was to compare the optical performance of diffractive multifocal intraocular lenses (DMIOLs) with visible (VIS) illumination with that of near infrared (NIR) illumination, the latter being used to test pseudophakic eyes in clinical aberrometers and double-pass systems. METHODS Two DMIOLs of different design (Tecnis +2.75 D ZKB00 and AcrySof +2.5 D SV25T0) wer...
Forty five eyes with up to 2 dioptres of myopic astigmatism and up to 1 dioptre sphere either plus or minus following cataract extraction and implantation of a monofocal intraocular lens were examined to assess their unaided visual acuities. Forty three percent were able to see 6/12 and N8, and 60% were able to see 6/12 and N10. Subjects with between 1 and 2 dioptres of myopic astigmatism and v...
Simulating Defocus Curve for Monofocal Intraocular Lenses (IOL) with Different Spherical Aberrations
OBJECTIVE The objective of the report is to examine the comparative effectiveness and cost-effectiveness of various intraocular lenses (IOLs) for the treatment of age-related cataracts. CLINICAL NEED TARGET POPULATION AND CONDITION A cataract is a hardening and clouding of the normally transparent crystalline lens that may result in a progressive loss of vision depending on its size, location...
Animal eyes that are primarily used under low-light conditions usually have optical systems of short depth of focus, such that chromatic defocus may lead to considerable blurring of the images. In some vertebrates, the problem is solved by multifocal lenses having concentric zones of different focal lengths, each of which focuses a different relevant spectral range onto the retina. A partially ...
AIM: Evaluate the visual adaptation and vision quality of glasses with Stellest lenses.
 MATERIAL AND METHODS: A total 35 children aged 813 years (average: 10.50.27 years) mild moderate myopia 3.150.19 dpt) in lenses 30 10.40.3 2.660.2 monofocal as control group. Refraction acuity (OS) were assessed after appointment glasses. Ergonomic tests conducted 34 months started wearing them. At wee...
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