I guess you could simulate the effect but getting a 1 diopter pair of reading glasses and knocking one of the lenses out. I have a stack of £1 reading glasses -

I guess you could simulate the effect but getting a 1 diopter pair of reading glasses and knocking one of the lenses out. I have a stack of £1 reading glasses - I'll see if have have a pair that has independently modified itself thus. Actually you can simulate it just by holding the current pair to one side. Kind of works but is a bit annoying compared to normal reading glass useage.