Decrease in the ability to recognize, analyse and mentally manipulate objects, which is not due to eye problems such as not being able to recognize faces, find objects in direct view, use simple tools or even place clothing on the right body part.
Ukwehla emandleni okubona, ukuhlahlela kanye nokusebenzisa ingqondo ngezinto okungekho ngenxa yezinkinga zamehlo ukungakwazi ukubona ubuso,ukuthola izinto ngokubuka okuqondile, ukusebenzisa amathuluzi alula,noma ukubeka impahla engxenyeni efanele yomzimba.