Optimize Ms Access On Network?

Is it possible to use a string as an array? I mean:' I have several arrays

Dim a10() As Integer = {530}
Dim a15() As Integer = {370, 231}
Dim a20() As Integer = {305, 176, 126}

'I declare a variable as a string and I assign the name of an array to it

Dim tablaalfa As String = "a10"

'I retrieve data from the array using the name of the variable instead:

lbl1.Text = tablaalfa(2)

I guess it doesn't work in this way?