How many pair of reading glasses do you have and how strong are they?

[Chaumont]

How many pair of reading glasses do you have and how strong are they?

[Chauncey]

usually one pair of reading glasses is enough for me . They are only used for reading or some close work ,not for decoration , when I don't need , just put them off . The strength of them is 1.5 and work well on me .