calcium deposits in eyes

I went to the eye dr today and he said that my eyes have calcium deposits in them and that is why my eyesight has gotten worse lately. He said that it had to do with calcium absorbtion. He said he was not really concerned yet! I have a bunch of tests he wants me to do first to see how bad this is. He gave me a stronger perscription for glasses to correct my sight. Anybody ever heard of this. Kinda worried. Hugs Mary