PURPOSE The aim of this systematic review was to synthesize and appraise the evidence of the benefits of presbyopic correction on the cornea for visual function. SUMMARY Comprehensive search was conducted in MEDLINE using keywords like "presbylasik", "presbyopic refractive surgery", "corneal pseudoaccommodation" and "corneal multifocality". We reviewed corrected and uncorrected visual acuitie...

PURPOSE To compare the validity and effectiveness of 2 methods for expanding depth of focus to correct for presbyopia; that is, induction of spherical aberration and small-pupil apertures. SETTING University of California, Berkeley, California, USA. DESIGN Comparative case series. METHODS A random 4-alternative forced-choice acuity task was performed on 13 subjects. Visual performance and...

PURPOSE To assess quantitatively corneal irregular astigmatism in association with best spectacle-corrected visual acuity. METHODS Refractive powers on a mire ring measured with computerized videokeratography were decomposed, using the Fourier series harmonic analysis. Extracting spherical and regular astigmatic components, the remaining irregular astigmatic component was quantified on rings ...

although the majority of the cornea was nonedematous, there was marked corneal edema in the area of the GV markings with bulla noted (Figure 1). Over several weeks, the edema gradually resolved with interface haze in the area of prior edema. The visual acuity resolved to 20/40 without correction. Case 2. A 67-year-old woman with a history of Fuchs endothelial dystrophy presented with gradual on...

purpose: to report a case of hypotonous maculopathy after blunt trauma and its treatment. patient and findings: a 34-year-old woman presented with decreased visual acuity in her left eye following blunt trauma. right eye examination was unremarkable, but visual acuity of left eye was counting fingers. slit lamp biomicroscopy of the left eye was within normal limits, but on funduscopy, papilloma...

PURPOSE To evaluate the decibel loss on the Macular threshold protocol of the Humphrey visual field as a reliable functional outcome of the intravitreal bevacizumab treatment. METHODS Thirteen patients were evaluated at baseline and on the week 6 for best corrected visual acuity, optical coherence tomography central macular thickness and decibel loss on Macular threshold protocol of the Humph...

PURPOSE To study prospectively the safety and efficacy of intravitreal bevacizumab for eyes with neovascular age-related macular degeneration with baseline visual acuity better than 70 letters (Snellen equivalent better than 20/40). METHODS Patients with treatment-naive neovascular age-related macular degeneration were categorized prospectively into three groups according to baseline visual a...

OBJECTIVE To prospectively study the effects of the use of Intacs microthin prescription inserts (Addition Technology Inc, Fremont, Calif) for the postoperative management of corneal ectasia resulting from laser in situ keratomileusis (LASIK). METHODS In this prospective nonrandomized clinical trial, 10 eyes of 7 patients with post-LASIK corneal ectasia (2 men and 5 women) aged 33 to 46 years...

PURPOSE To compare the visual outcomes after cataract surgery with bilateral implantation of 1 of 2 diffractive trifocal intraocular lenses (IOLs). SETTING Two clinical centers, Lisbon, Portugal. DESIGN Prospective comparative case series. METHODS Phacoemulsification with bilateral implantation of a Finevision Micro F IOL (Group 1) or an AT Lisa tri 839 MP IOL (Group 2) was performed. Ove...

PURPOSE To compare the visual acuity and quality of vision achieved with three widely-used intraocular lenses (IOLs) in subjects with bilateral cataracts. PATIENTS AND METHODS This three-arm, parallel, prospective, partially masked, single-surgeon study randomized 78 subjects to receive bilateral Crystalens® Advanced Optics (AO) accommodating IOLs, AcrySof® IQ ReSTOR® +3.0 multifocal IOLs, or...