Results 21 to 30 of about 3,228,378 (312)
Agreement between methods of retinoscopy, conventional subjective refraction and fogging subjective refraction [PDF]
Purpose: to compare the refractive error measurements achieved through three distinct techniques: retinoscopy, subjective method, and the subjective fogging method. Methods: Participants included 223 young adults aged 18 to 36 years (mean age: 25.63±5.31)
Atefeh Kebriaei +6 more
doaj +1 more source
Background: Refractive errors are the leading cause of visual impairments in the Kingdom of Saudi Arabia (KSA). Laser refractive eye surgeries are getting huge popularity for correcting these visual impairments in KSA and other gulf countries.
Abdullhamid S AlGhamdi +4 more
doaj +1 more source
Refractive errors among children, adolescents and adults attending eye clinics in Mexico.
AIM To assess the proportion of refractive errors in the Mexican population that visited primary care optometry clinics in fourteen states of Mexico. METHODS Refractive data from 676 856 patients aged 6 to 90y were collected from optometry clinics in ...
Francisco Gomez-Salazar +18 more
semanticscholar +1 more source
The prevalence of uncorrected refractive errors in underserved rural areas
Purpose: To determine the prevalence of uncorrected refractive errors, need for spectacles, and the determinants of unmet need in underserved rural areas of Iran.
Hassan Hashemi +4 more
doaj +1 more source
Prevalence of refractive errors in Tibetan adolescents
BackgroundThe prevalence of adolescent eye disease in remote areas of the Qinghai-Tibet Plateau has rarely been reported. To understand the prevalence of common eye diseases in Tibet, we performed ocular-disease screening on students from primary and ...
Xuehan Qian +12 more
semanticscholar +1 more source
Purpose: The aim of this study was to analyze and compare corneal endothelial cell morphology and characteristics in bilateral keratoconus (KCN) patients with unilateral Vogt's striae. Methods: Fifty patients aged 20–38 years were recruited in this cross-
Hadi Ostadi-moghaddam +5 more
doaj +1 more source
Investigation of the effects of Islamic fasting on ocular parameters
Purpose: To investigate the effects of religious fasting during the month of Ramadan on intraocular pressure (IOP), refractive error, corneal tomography and biomechanics, ocular biometry, and tear film layer properties.
Mohamad-Reza Sedaghat +8 more
doaj +1 more source
Refractive errors in children and adolescents in Bucaramanga (Colombia).
PURPOSE The aim of this study was to establish the frequency of refractive errors in children and adolescents aged between 8 and 17 years old, living in the metropolitan area of Bucaramanga (Colombia). METHODS This study was a secondary analysis of two
V. Galvis +5 more
semanticscholar +1 more source
Purpose: To compare clinical outcomes between mechanical debridement photorefractive keratectomy (m-PRK) and trans-epithelial photorefractive keratectomy (t-PRK) in myopic patients.
Siamak Zarei-Ghanavati +3 more
doaj +1 more source
Refractive Errors in Koreans: The Korea National Health and Nutrition Examination Survey 2008-2012
Purpose Our study provides epidemiologic data on the prevalence of refractive errors in all age group ≥5 years in Korea. Methods In 2008 to 2012, a total of 33,355 participants aged ≥5 years underwent ophthalmologic examinations.
T. Rim +5 more
semanticscholar +1 more source

