I had read the words below in Wikipedia with here
By 5 years of age, children have developed the same unlimited capacity of iconic memory that adults possess. The duration of informational persistence however increases from approximately 200 ms at age 5, to an asymptotic level of 1000 ms as an adult (>11 years).
but in another website I had read that iconic memory has a capacity of 8-9 items and now I can not understand whether Iconic Memory has unlimited capacity or the capacity of 8-9 items,
Can anyone explain this to me,