Visual acuity test, LEA Gratings

Type of medical device or related product
General vs. specific use (health condition)
Intended population sex
Level of technical knowledge
Capital
Reusable
Requirements
None
WHO list of priority medical devices
EMDN related code(s)
Z1212012001
VISUAL FUNCTIONAL ASSESSMENT EQUIPMENT
GMDN related code(s)
36380
Visual acuity light box (A mains electricity (AC-powered) light viewing box that uses a translucent version of the ophthalmic chart (Snellen chart) imprinted with block letters (optotypes) and/or other symbols (e.g., LEA symbols for children who can not read) in gradually decreasing sizes used for testing visual acuity. The letters/symbols are identified according to distances at which they are ordinarily visible (normally 6 metres or 20 feet) and are combined in a box where the individual letters or symbols are selected and high-lighted by the optician/doctor with background electrical lighting. This device is typically mounted on a wall of the optician/doctor's examination room/office.)