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Table 1 Main components of the standard training protocol in the use of CCTVs.

From: Effects of standard training in the use of closed-circuit televisions in visually impaired adults: design of a training protocol and a randomized controlled trial

Components Details
Elements - Ergonomics - Position of CCTV in the room
- Posture for working with CCTV
- Height of CCTV and working distance
Elements - Basic operation instructions - On/off switch
- Magnification
- Image contrast
- Position of lights and camera
- X-Y table and basic tracking skills
Elements - Reading (different materials) - Basic reading assignments (e.g. reading words/small sentences)
- Newspapers, books, magazines, postcards, medicine bottles etc.
Elements - Watching pictures - Pictures and photographs with different pixel amounts
Elements - Writing (different materials) - Basic writing assignments (e.g. drawing crosses in boxes)
- Virgin and zoned paper, cheques, forms
Elements - Hobbies and other CCTV skills - Interests and hobbies of the patients are discussed and practiced (e.g. painting, fiddling, sewing, drawing etc.)
Applied techniques - Hands on training
- Easy-to-difficult strategy
Number of sessions - Variable, adjusted to the individual patients need
Frequency - Once a week
Duration - Sixty minutes per session
Format - Face-to-face
Location - Patients' home environment