There are NO health insurance policies that include vision. maybe welfare is a kind of health insurance, but you should buy it in order to enjoy the benifits. Why not buy eyeglasses online, which is much cheaper, the prices are almost 40%-50% lower than that in optical stores.
Comprehensive health insurance may include vision insurance. But you should check your the policy in your area. It is said that only a certain part of an annual eye check-up might be covered. However, I don't know what company you should take. You'd better consult a local agent who works with all of the major companies in your area.Hope this helps.