نتایج جستجو برای: refractive error correction

تعداد نتایج: 406131  

Journal: :Investigative ophthalmology & visual science 2017
Danuta M Sampson Peijun Gong Di An Moreno Menghini Alex Hansen David A Mackey David D Sampson Fred K Chen

Purpose To evaluate the impact of image magnification correction on superficial retinal vessel density (SRVD) and foveal avascular zone area (FAZA) measurements using optical coherence tomography angiography (OCTA). Methods Participants with healthy retinas were recruited for ocular biometry, refraction, and RTVue XR Avanti OCTA imaging with the 3 × 3-mm protocol. The foveal and parafoveal SR...

This study aimed at investigating the effects of grammatical error correction on EFL learners’ accuracy. Twenty-two male and female senior students were chosen randomly to respond to a questionnaire investigating their beliefs about immediate grammatical error correction.  Actually, the study was conducted in order to answer this question: what is the effect of grammatical error feedback on stu...

Journal: :Applied sciences 2023

The aim of this study was to verify whether providing older adults with actual corrected glasses for refractive errors would have a positive impact on their gait patterns. This included 30 subjects an average age 78.77 ± 7.27 years. measurement patterns performed using the Optogait analysis system, and comparative compare patients before after they wore correction glasses. Step length, stride w...

Journal: :International journal of medical ophthalmology 2022

Introduction: Albinism comes from ‘albus’, the Latin word meaning white, and refers to a group of hereditary disorders wherein biosynthesis pigment melanin is absent or reduced. Oculocutaneous albinism (OCA) heterogeneous autosomal recessive disorder that involves lack in skin, hair, eyes, associated with ocular visual defects such as photophobia, strabismus, nystagmus low vision. Materials Met...

Journal: :Advances in Ophthalmology & Visual System 2016

Journal: :Ophthalmology 2011
Mingguang He Nathan Congdon Graeme MacKenzie Yangfa Zeng Joshua D Silver Leon Ellwein

OBJECTIVE To compare visual and refractive outcomes between self-refracting spectacles (Adaptive Eyecare, Ltd, Oxford, UK), noncycloplegic autorefraction, and cycloplegic subjective refraction. DESIGN Cross-sectional study. PARTICIPANTS Chinese school-children aged 12 to 17 years. METHODS Children with uncorrected visual acuity ≤ 6/12 in either eye underwent measurement of the logarithm o...

2013
André Omgbwa Eballé Côme Ebana Mvogo Christelle Noche Marie Evodie Akono Zoua Andin Viola Dohvoma

BACKGROUND Albinism causes significant eye morbidity and amblyopia in children. The aim of this study was to determine the refractive state in patients with complete oculocutaneous albinism who were treated at the Gynaeco-Obstetric and Paediatric Hospital, Yaoundé, Cameroon and evaluate its effect on vision. METHODS We carried out this retrospective study at the ophthalmology unit of our hosp...

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...

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