People with good vision glance around looking for information with
which to make the next wayfinding decision. They do not generally look
at the environment in a systematic way. Their attention may be caught by:
• something that is very prominent or eye-catching
• something that looks interesting
• something that looks as if it may be, or may lead to, their destination
• a person who looks as if they know the site, to ask for directions
• a map to locate a destination on
• a directional or locational sign.
Sight is the most versatile sense for wayfinding because it can be used to
see things both at a distance, and near to, unlike sound which generally
requires people to be near to the sound in order to use it effectively.
Although sight is not the only sense people use to decide which way to
go, it is the one most relied on. This is very apparent when someone loses
their sight, or experiences reduced acuity. 
Generally healthcare facilities are used by a high proportion of people
with visual impairments and older patients and visitors, whose sight will
have gradually deteriorated with age. The legibility of all wayfinding aids
for people with impaired vision should be considered. 1.2.2