Light sensitivity in one eye could occur for many reasons, ranging from minor injuries, dry eye, and migraine to more serious conditions, such as multiple sclerosis. Light sensitivity, or photophobia, ...
Impaired vision and blindness are common. About 3.4 million people in the US are blind or visually impaired. Vision is usually measured by visual acuity charts, and normal vision is expressed as 20/20 ...
Methods of measuring statistical test sensitivity (signal-to-noise ratio) were published by John Mandel in 1964 and incorporated into ASTM D6600 in 2000, mainly to provide a means of determining the ...