Your vision and eye sight does serve you to be able to see your life experience and express it to its fullest.
But what does one not see?
Awareness of your actions and inactions produce your picture of life through your perceptions. However, your life may be illusive to you and only seen after your experiences and you may even get an insight as to your situation.
But what if you were to live a very genuine life full of creativity and appreciation for everything you have? Probably live a healthier life?