Most near vision reading charts include the visual acuity values. On the one hand, most reading charts are constructed using the Times New Roman typography. On the other hand, visual acuity is commonly measured with optotypes not with typographies. In this paper, an objective analysis by image processing of the stroke width of some typographies (Times New Roman, Arial, Arial Bold, Sloan and Opt...

BACKGROUND The purpose of this study was to evaluate the visual outcome and self-reported vision-targeted health status in patients treated with intravitreal ranibizumab for wet age-related macular degeneration (AMD). METHODS A total of 51 eyes from 50 patients aged 76 ± 7 years, with wet AMD not previously treated, were included in this prospective study. Best corrected visual acuity was exa...

Near vision has been studied from many aspects. Galton, in 1885, tested the farthest distance at which four-point type could be read in 7,000 persons, from six to 81 years of age. He concluded that the near visual acuity improved rapidly from childhood to a maximum at the age of 20 years, then de­ clined very gradually till the age of 45 years, and more rapidly thereafter. Chapanis, in 1950, ch...

PURPOSE To evaluate intraindividual visual acuity, wavefront errors and modulation transfer functions in patients implanted with two diffractive multifocal intraocular lenses. METHODS This prospective study examined 40 eyes of 20 cataract patients who underwent phacoemulsification and implantation of a spherical multifocal ReSTOR intraocular lens in one eye and an aspheric Tecnis ZM900 multif...

METHOD: Prospective, non-comparative study of 18 patients (36 eyes) in whom a Synchrony® dual-optic lens was implanted bilaterally following cataract surgery. All patients were studied preoperatively, and 1, 3 and 6 months postoperatively. The following measurements were taken: Uncorrected visual acuity (UCVA) and best corrected visual acuity (BCVA) for distance, intermediate and near vision, a...

PURPOSE Evaluation of improving near vision in presbyopic patients with low to moderate myopia with selective treatment of high-order aberrations (HOAs) using the ORK-CAM software aberrometer and a SCHWIND ESIRIS excimer laser. In this study, all HOAs except vertical coma were treated and the effect on near visual function was evaluated. SETTING Horus Vision Correction Center, Alexandria, Egy...

We interpreted the clinical data from 16 eyes with a 3M multifocal implant and compared them with data from 16 monofocal implants with the same follow-up period. The multifocal implant has several disadvantages: a lower initial visual acuity, a higher frequency of posterior synechiae, and slightly more difficult ophthalmoscopy than with conventional lenses. The great advantage of the multifocal...

OBJECTIVE To describe recognition (letter) acuity at age 10 years in eyes with and without retinal residua of retinopathy of prematurity (ROP). DESIGN Presence and severity of ROP residua were documented by a study ophthalmologist. Masked testers measured monocular recognition visual acuity (Early Treatment of Diabetic Retinopathy Study) when the children were 10 years old. Two hundred forty-...