I agree with PPs. I just took my girls yesterday for their annual eye exam (they are 8 and 5.5). This was younger DD's first exam. She's going into K. They have a machine that measures refraction and basically tells the doc an approximate lens prescription. That's the starting point that he uses to then do the lens test for which lenses make vision better/worse. He did a full exam along with dilating their pupils. Both my kids are slightly farsighted which is normal for kids and doesn't require correction.
We go to a regular optometrist that sees adults and kids.
Mom to two amazing DDs ('07 & '09) and a fur baby.
Gluten free since Nov '11 after non-celiac gluten sensitive diagnosis. Have had great improvement or total elimination of: migraines, bloating/distention, heartburn, cystic acne, canker sores, bleeding gums, eczema on elbows, dry skin and scalp, muscle cramps, PMS, hair loss, heart palpitations, fatigue. I'm amazed.