نتایج جستجو برای: distant visual acuity

تعداد نتایج: 400915  

2013
Young Joo Shin In Bum Lee Won Ryang Wee Jin Hak Lee Jeong-Min Hwang

PURPOSE To investigate the efficacy of a computerized visual acuity test, the SNU visual acuity test for children. METHODS Fifty-six children, ranging from 1 to 5 years of age, were included. In a dark room, children gazed at and followed a circular dot with 50% contrast moving at a fixed velocity of 10 pixels/sec on a computer monitor. Eye movement was captured using a charge coupled device ...

Journal: :Japanese Journal of Physical Fitness and Sports Medicine 2004

Journal: :مجله دانشکده پزشکی دانشگاه علوم پزشکی تهران 0
رضا کارخانه r karkhane

purpose: to determine the effect of grid pattern laser photocoagulation on diabetic diffuse macular edema with assessment of visual outcome. patients & methods: the author reviewed the medical records of 84 eyes of 62 patients with diabetic diffuse macular edema treated with grid pattern green argon laser photocoagulation in farabi eye hospital between the years 1992-1995, the follow-up period ...

Journal: :acta medica iranica 0
s tabatabaii department of ophthalmology, farabi eye research center, school of medicine, tehran university of me s rasoolnejad department of ophthalmology, farabi eye research center, school of medicine, tehran university of me s moghimi department of ophthalmology, farabi eye research center, school of medicine, tehran university of me h faghihi department of ophthalmology, farabi eye research center, school of medicine, tehran university of me a mirshahi department of ophthalmology, farabi eye research center, school of medicine, tehran university of me m riazi-esfahani department of ophthalmology, farabi eye research center, school of medicine, tehran university of me

central retinal vein occlusion (crvo) is the third most common blinding vascular retinal disorder. as there is no proven treatment for crvo, we performed this study to evaluate the effectiveness of radial optic neurotomy (ron) on visual acuity in eyes with crvo. this study was designed as an interventional case series. pars plana vitrectomy with ron was performed in 18 eyes of 16 patients with ...

Journal: :Investigative ophthalmology & visual science 2010
Joon Young Hyon Hwan Eok Yeo Jong-Mo Seo In Bum Lee Jin Hak Lee Jeong-Min Hwang

PURPOSE To investigate the efficacy of a computerized optokinetic nystagmus (OKN) test in evaluating the objective distance visual acuity and to determine the correlation between subjective and objective visual acuities. METHODS This prospective, noninterventional study included 83 eyes of 83 volunteers. Objective visual acuity was defined as the smallest size stripe that evoked the OKN respo...

2016
Isawumi Michaeline Agboola Sheriff Ayegoro Bimbo

BACKGROUND Paediatric ophthalmology is an emerging subspecialty in Nigeria and as such there is paucity of data on refractive errors in the country. This study set out to determine the pattern of refractive errors in children attending an eye clinic in South West Nigeria. METHODS A descriptive study of 180 consecutive subjects seen over a 2-year period. Presenting complaints, presenting visua...

Journal: :بینا 0
مهدی نیلی احمدآبادی m nili ahmadabadi تهران- میدان قزوین- بیمارستان فارابی- مرکز تحقیقات چشم دانشگاه علوم پزشکی تهران محمدعلی زارع ma zare تهران- میدان قزوین- بیمارستان فارابی- مرکز تحقیقات چشم دانشگاه علوم پزشکی تهران ابراهیم مکانیکی e mekaniki تهران- میدان قزوین- بیمارستان فارابی- مرکز تحقیقات چشم دانشگاه علوم پزشکی تهران علیرضا لاشیئی a lashei تهران- میدان قزوین- بیمارستان فارابی- مرکز تحقیقات چشم دانشگاه علوم پزشکی تهران پوپک پیر p pir تهران- میدان قزوین- بیمارستان فارابی- مرکز تحقیقات چشم دانشگاه علوم پزشکی تهران

purpose: to report three cases of alport syndrome in one  family with anterior lenticonus and retinal flecks. patients and findings: three members of one family with consanguineous parents are presented who had renal and ocular involvement. they had anterior lenticonus and a beaten bronze appearance in the macula. reduced visual acuity and photophobia were the chief complaints of these patients...

Journal: :journal of current ophthalmology 0
رضا اسدی reza asadi خلیل قاسمی فللاورجانی khalil ghasemi-falavarjani

purpose : to evaluate the visual results of amblyopic therapy in pediatric patients with monocular abnormalities. methods : the hospital records of visually immature patients with unilateral organic ocular abnormalities and decreased visual acuity, who presented to the pediatric ophthalmology clinic over a one year period, were reviewed. those who had 8 years old of age or less and underwent am...

Journal: :Journal of biomedical optics 2011
Martina Eichenberger Philippe Perrin Klaus W Neuhaus Ueli Bringolf Adrian Lussi

We evaluated the near visual acuity of 40 dentists and its improvement by using different magnification devices. The acuity was tested with miniaturized E-optotype tests on a negatoscope under the following conditions: 1. natural visual acuity, 300 mm; 2. single lens loupe, 2×, 250 mm; 3. Galilean loupe, 2.5×, 380 mm; and 4. Keplerian loupe, 4.3×, 400 mm. In part 1, the influence of the magnifi...

نمودار تعداد نتایج جستجو در هر سال

با کلیک روی نمودار نتایج را به سال انتشار فیلتر کنید