My eye doctor did a free comprehensive screening for babies between 6 and 12 months (I think), so we did a eye screening around 7 months. This was just to look for any obvious problems (see if he tracks the pen light, look for any eye health problems, etc).
We haven't taken him in for an eye exam yet, but I think the doctor said we should start around age 3 and again when he enters school or soon after (maybe age 5 or 6?) and every 2 years after that. I imagine they need to be able to follow directions and read the eye chart to get a good exam, which is probably why some wait for them to be school age if they don't think they are having problems. If you suspect any problems, I'm sure any age is appropriate though.
at 4:38 PM on Mar. 16, 2011