T.A.
A.,
The school should have sent a note home letting you know an eye test was required and giving you the option of 1. either being present while your son was being tested, or 2. having the test performed by your own eye Dr.
As far as the ADD/ADHD thing goes GOOD FOR YOU! I too think that schools are way too quick to request children be put on medication. You should ask if the situation where you son was lying on the floor/sitting by himself was documented, in what context was he doing this? Perhaps he did not feel well that day? Sitting alone at a table? Big deal!!!
If it was me (I have 5 boys the oldest of whom is 12 and didn't get any kind of a backbone to deal with issues at his school until the middle of the 4th grade, and I would give anything to go back knowing then what I know now.)
Make yourself a prescence at his preschool. Go in, spend some time there. See for yourself what is going on. Tell them you want to volunteer in the classroom. Get to know his teacher and the most important thing is find out who is in charge of the program. Is the principal of an elementary school? Someone else? Also make sure to get names of who you talked to, what they said, and what the date and time were. Keep it in a notebook. If there are any future issues you will be prepared with the facts.
The next time someone tries to intimidate you with a scare tactic, simply say ok can you type that up, sign it and mail me a copy please? You will find it looks a lot different when its just words on paper.
Good luck to you.