نتایج جستجو برای: distant visual acuity
تعداد نتایج: 400915 فیلتر نتایج به سال:
PURPOSE The visual performance of monofocal, bifocal, and trifocal intraocular lenses was evaluated by human individuals using a vision simulator device. This allowed investigation of the visual impression after cataract surgery, without the need actually to implant the lenses. METHODS The randomized, double-masked, three-way cross-over study was conducted on 60 healthy male and female subjec...
purpose: to compare the effect of high dose intravenous corticosteroid therapy with placebo in the treatment of recent traumatic optic neuropathy (ton). methods: in a double masked-placebo controlled clinical trial, 31 eyes of 31 patients were randomly assigned into two groups. only patients with history of ophthalmic or head trauma within the past 7 days were included. unconscious patients, th...
purpose: to evaluate the effect of patch therapy on visual acuity in adults with ametropic amblyopia. methods: this randomized clinical trial was performed on 66 patients with unilateral ametropic amblyopia aged 9 to 35 years reffered to a clinic in shahroud. the patients were randomly assigned to two groups. in the treatment group, based on the visual acuity of the amblyopic eye, 3-6 hours da...
purpose: to determine the effect of occluding a normal eye on visual acuity, contrast sensitivity and stereopsis in amblyopic school children. methods: amblyopic children from primary schools of region 2 in mashhad were identified and referred to optometry clinics of mashhad medical university through a screening program. informed consent was obtained from the parents. all subjects underwent an...
purpose: to evaluate the efficacy of radial optic neurotomy (ron) combined with or without intravitreal triamcinolone acetonid (ivta) injection in the management of central retinal vein occlusion (crvo). methods: this non-randomized clinical trial was conducted on 23 patients with crvo, who underwent ron with or without ivta injection. preoperative and postoperative best corrected visual acuity...
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