How to calculate pseudophakic and phakic toric implants?
نویسندگان
چکیده
منابع مشابه
Vector analysis of corneal and refractive astigmatism changes following toric pseudophakic and toric phakic IOL implantation.
PURPOSE To determine the efficacy of the astigmatism correction following toric intraocular lens (IOL) and toric phakic IOL (pIOL) implantation in eyes with no previous ocular surgery and in postkeratoplasty (PKP) eyes. In addition, changes in corneal astigmatism were determined. METHODS Astigmatism was analyzed in 35 eyes with an AcrySof toric IOL, 35 eyes with an Artiflex toric pIOL, 50 eye...
متن کاملToric phakic intraocular lens: European multicenter study.
OBJECTIVE To evaluate safety, efficacy, predictability, stability, complications, and patient satisfaction after implantation of Artisan toric phakic intraocular lenses (TPIOLs) for the correction of myopia or hyperopia with astigmatism. DESIGN Prospective, nonrandomized, comparative (self-controlled) multicenter trial. PARTICIPANTS Seventy eyes of 53 patients (mean, 35 years; range, 22-59 ...
متن کاملProgression of age related maculopathy in phakic versus pseudophakic eyes.
Age-related maculopathy (ARM) is one of the leading causes of central visual acuity loss in older western population. Many factors are responsible for the fast development of ARM. One of this is significant increases of optical radiations through artificial lens after removal of the catarctous lens. The aim of this study was to compare progression of ARM in phakic and pseudophakic patients and ...
متن کاملHow to Calculate Sample Size and Why
WHY Calculating the sample size is essential to reduce the cost of a study and to prove the hypothesis effectively. HOW Referring to pilot studies and previous research studies, we can choose a proper hypothesis and simplify the studies by using a website or Microsoft Excel sheet that contains formulas for calculating sample size in the beginning stage of the study. MORE There are numerous ...
متن کاملArtiflex Toric Phakic Intraocular Lens Implantation in Congenital Nystagmus
CASE A 44-year-old woman with congenital nystagmus and myopic astigmatism in both eyes who was submitted to phakic intraocular lens (pIOL) implantation. METHODS Full ophthalmologic examination including refractive status, corrected (CDVA) and uncorrected (UCVA) monocular and binocular visual acuities, ocular motility, slit-lamp evaluation, tonometry and fundoscopy before and after implantatio...
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ژورنال
عنوان ژورنال: Acta Ophthalmologica
سال: 2016
ISSN: 1755-375X
DOI: 10.1111/j.1755-3768.2016.0124