<unk>  (Greek: optos meaning seen or visible and metria meaning measurement) is a health care profession concerned with eyes and related structures, vision, visual system and vision information processing in humans.
Like most health professions,<unk>  education, certification and practice is regulated in most countries.<unk> sts and related organizations interact with government, other health care professions and the community to deliver eyecare and visioncare.<unk>  is a type of eyecare profession and<unk> sts often interact with other eye care professionals, such as ophthalmologists (medical doctors) and opticians.
Optometry
Dosimetry
Cognitive test
Eyeglass prescription
Ophthalmoscope
Visual routine
Cognitive neuropsychology
Actigraphy