The expected urine creatinine excretion per 24 hours: Males: 13-29 mg/kg of body weight/24 hours. Females: 9-26 mg/kg of body weight/24 hours. Reference ranges for male and female patients <18 and >83 years of age have not been established.
blindness. lack or loss of ability to see (see vision). Legally, blindness is defined as less than 20/200 vision in the better eye with glasses (vision of 20/200 is the ability to see at 20 feet only what the normal eye can see at 200 feet). A person with 20Â° or less vision (pinhole vision) is also legally blind.
A person is considered to be legally blind if he or she has a best-corrected vision of 20/200 in their best-seeing eye. Many people feel that they are legally blind because when they remove their glasses or contact lenses, they cannot see a foot in front of their face.