Hi InnerGrace,
One of the reasons to get the lens is because you don't have good eye closure, the other reason is because you have a very dry eye. You have 3 options that I know of, deciding which one to choose depends a lot on your Insurance, how long you think you will need the lens and your willingness to try different things. The lens you are referring to costs quite a bit depending on what your Insurance will pay & it needs to be fitted to your eye by a specialist.
I had a lens that was a bit smaller then the scleral lens but worked great for me. I got the lens from a contact lens doctor that specializes in dry eye issues. The lens only cost me $300. After about 2 years I had problems with the lens, so I started using a daily contact lens. The daily contact lens costs about $1.00. The daily lens I use doesn't require any special cleaning products unlike the scleral lens or the lens I use to use because I just throw it away at the end of the day. It's really easy to put in and take out of my eye.
If you think your eye issue is going to be permanent then I would suggest either the scleral lens or the less costly lens I had. If your eye issue is hopefully a short term problem you might want to try the daily lens.
We are all different so you just have to try and find what works for you. Feel free to ask questions as I've been dealing with the eye issues for over 20 years and have tried many things. Jill