F orward light scatter measurement provides information about optical imperfections as the cause of glare disability. Glare disability refers to a reduction in visual performance caused by a glare source, resulting in retinal contrast loss secondary to intraocular stray light. Lens extraction reverses the strong age increase in stray light, which is considered an independent source of symptoms....

Author(s): Schallhorn, Julie M | Abstract: PurposeTo review and compare the results of unpublished premarket approval studies for recent multifocal extended depth focus (EDOF) intraocular lenses.MethodsLenses without previously published pre-market trials were identified clinical patient-reported outcomes reviewed compared.ResultsLenses included DFT/DAT (Acrysof Vivity) EDOF lens, TFNT/TFAT (Pa...

PURPOSE To compare the visual performance of multifocal intraocular lenses (IOLs) and monofocal IOLs made of the same material. METHODS The subjects included patients implanted with either Tecnis® monofocal IOLs (ZA9003 or ZCB00) or Tecnis® multifocal IOLs (ZMA00 or ZMB00) bilaterally. We conducted a retrospective study comparing the two types of IOLs. The multifocal group included 46 patient...

BACKGROUND We report the case of a 40-year-old female patient treated with implantation of the Acrysof® IQ ReSTOR® lens (Alcon, Fort Worth, Tex., USA) with overlaying Acrysof EXpand® minus piggyback lens (Alcon). METHODS The patient had high myopia and was diagnosed with presbyopia and bilateral posterior subcapsular cataract. She desired to be spectacle-free and opted to undergo bilateral pl...

PURPOSE To determine the energy distribution between the distance and near images formed in a model eye by spherical and aspheric apodized diffractive multifocal intraocular lenses (IOLs). METHODS The IOL was inserted in a model eye with an artificial cornea with positive spherical aberration (SA) similar to that of the human cornea. The energy of the distance and near images, as a function o...

PURPOSE To evaluate differences in straylight between eyes implanted with a hydrophilic multifocal IOL (Seelens MF; Hanita Lenses, Hanita, Israel) and a hydrophobic multifocal IOL (SN6AD1; Alcon Laboratories, Inc., Fort Worth, TX). METHODS In a prospective cohort study, routinely obtained straylight measurements (C-Quant; Oculus Optikgeräte, Wetzlar, Germany) 3 months after standard phacoemul...

The energy distribution between the distance and near images formed in a model eye by three different apodized diffractive multifocal intraocular lenses (IOLs) is experimentally determined in an optical bench. The model eye has an artificial cornea with positive spherical aberration (SA) similar to human cornea. The level of SA upon the IOL, which is pupil size dependent, is controlled using a ...

METHODS: We performed a multicenter (European Eye Institute, Baviera Group), retrospective, comparative study of 10,390 pseudophakic eyes from 5,195 patients who underwent multifocal intraocular lens implantation between January 2009 and January 2012. The exclusion criteria included a history of diabetic retinopathy, ocular trauma, intraocular surgery, vitreous loss during cataract surgery, pre...

OBJECTIVE To evaluate visual results after bilateral implantation of multifocal intraocular lenses (IOLs) with asymmetrical light distribution for the far and near focus. METHODS Twenty-nine patients underwent bilateral implantation of silicone-optic, foldable, diffractive IOLs in a prospective, 2-center, noncontrolled interventional study. Each patient had a distant-dominant multifocal IOL i...

UNLABELLED A comprehensive review of the effect of multifocal intraocular lens (IOL) designs on postoperative ocular straylight was performed. Studies reporting straylight values obtained with the natural pupil using the C-Quant device after uneventful multifocal IOL implantation were included. The IOLs were categorized based on their material characteristics; that is, hydrophobicity and presen...