D5- Clinical Optometry & Specialty Areas (LV, Pedia, Neuro, Geria, VR) Flashcards
A person who has impairment of visual function for whom full remediation is not possible by conventional spectacles, contact lenses or medical intervention and which causes restriction in that persons everyday life
Low vision
Other terms used interchangeably with low vision
Visually impaired
Partially blind
Partially sighted
Visually challenged
Subnormal vision
Refers to the anatomical changes in the visual organs caused by diseases of the eye
Visual Disorder
Refers to the functional loss that results from a visual disorder
Visual Impairment
Refers to vision-related changes in the skills and abilities of an individual
Visual Disability
Refers to the psychosocial and economic consequences of visual loss
Visual Handicap
Defined as binocular visual acuity of 20/200 or less in the better seeing eye
Legal Blindness
Refers to an individual’s functional visual ability in spite of loss
Visual Efficiency
ICD-9 Classification:
BCVA less than 20/60
Moderate Impairment
ICD-9 Classification:
BCVA less than 20/160 or VF less than or equal to 20 degrees
Severe Impairment
ICD-9 Classification:
BCVA less then 20/400 or VF less than or equal to 10 degrees
Profound Impairment
ICD-9 Classification:
BCVA less than 20/1000 or VF less than or equal to 5 degrees
Near Total Impairment
ICD-9 Classification:
No light perception
Total Impairment
WHO Classification:
VA 20/25 or better
Normal acuity
WHO Classification:
VA 20/30 to 20/63
Mild vision loss
WHO Classification:
VA 20/80 to 20/160
Moderate vision loss
WHO Classification:
VA 20/200 to 20/400
Severe vision loss
