Chapter 1: Color Vision Acuity Flashcards
The inability to perceive color is caused by changes that happen in the wavelength-sensitive chemicals of?
The cones in the retina as they react to red, green, and blue light wavelengths.
Color deficiency is usually inherited, also what are some factors such as?
Diseases (diabetes, sickle cells anemia, macular degeneration, multiple sclerosis, etc), medication and aging.
What is the first factor that Health Care professionals who are color deficient may have difficulty detecting?
Body color changes like pallor, cyanosis, jaundice and erythema.
What is the second factor that Health Care professionals who are color deficient may have difficulty detecting?
Rashes or bruises on the skin.
What is the third factor that Health Care professionals who are color deficient may have difficulty detecting?
Blood or bile in urine, feces, sputum or vomit.
What is the fourth factor that Health Care professionals who are color deficient may have difficulty detecting?
Mouth and throat conditions.
What is the fifth factor that Health Care professionals who are color deficient may have difficulty detecting?
Urine test strips.
Ishihara test for color deficiency is a series of?
Plates that give a quick and accurate assessment of color deficiency of congenital origin.
How is Ishihara Test done?
Plates are placed 30in from the patient and is asked to identify the numbers displayed on the plates.
