When you first got your glasses was the prescription right? If so and your vision got worse later then go to your doctors and have tests run. There are a few medical issues that cause your sight to deteriorate faster then normal like diabetes.
If the prescription was not right from the...
If it has never been installed or registered then yes you can, if it has then you can install it but when you register it, you will prob. get a message telling you that you can't.
As I don't use a mac I don't know how it works but adobe will be the one you will be registering it with so it...
It depends on the rules where you live, how about if you buy the car and put it in your sons name. There is no law against you driving your son's car and no money path for them to follow to you.
As long as your a licensed driver you can drive anyones car with their permission.