Results 51 to 60 of about 7,194 (98)
REFRACTIVE ERRORS IN ADULTS STUDIED AT A TEACHING HOSPITAL
Background: Refractive errors are one of the commonest causes of visual impairment and disability. The aim of this study was to evaluate the distribution of different types of refractive errors.
Hidayatullah Mahsud+3 more
doaj
On an Error in Brunnow's Formulae for Differential Refraction in Distance and Position-Angle [PDF]
Warren H. Finlay
openalex +1 more source
A New Instrument for Quickly Determining Refractive Errors of the Eye [PDF]
ELMER G. STARR
openalex +1 more source
Sensitivity and Specificity of Preschool Vision Screening in Iran
Background: To determine the sensitivity, specificity, positive predictive value (PPV), and negative predictive value (NPV) of the National Vision Screening Program for 7 yr old children in Iran.
Hassan HASHEMI+6 more
doaj
Errors of Refraction in the Eyes of Microscopists [PDF]
John C. Morgan
openalex +1 more source
Background: 285 million people are visually impaired worldwide. An estimated 19 million children are visually impaired, and 12million are visually impaired due to Refractive Errors.
Usha S+2 more
doaj
Background: Refractive errors in children are one of the leading causes of preventable blindness. Prevalence of various refractive errors in children is alarming.
Mohammad Junaid Sethi+2 more
doaj
NEW PLASTIC OPERATION FOR CORRECTING THE REFRACTIVE ERROR OF APHAKIC EYES BY CHANGING THE CORNEAL CURVATURE: PRELIMINARY REPORT [PDF]
T Krwawicz
openalex +1 more source