A
can See better at night than during the day
B
cannot be treated by Surgery
C
can affect men much more eaSily than women
D
can affect their SenSitivity to bright lightS
E
can See no colour at all, other than ShadeS of black, grey and white
F
can See thingS that people with normal viSion cannot
G
can have very dangerouS conSequenceS for colour-blind people.
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