Is my snake blind?

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I do not have pics to show sadly. A little back story. I got her for free. The previous owner posted on Craigslist that he could no longer care for her. When I picked her up she was ice cold in hamster bedding with a burned out heat lamp, no water, and an 80gal tank. I also found out he had not been offered food in 4 months and ha only been fed live rats way too large for her.

I put her in a smaller tub correct for her size. Aspen bedding, UTH pad with thermostat. She would take her first feeding until I switched to med rats frozen. Now when I hold her I see one eye is half white and has scar tissue around the eye socket. She also shows no reaction to anything on that side. Her other eye has a scratch down the middle and she shows very little reaction on that side. Any advise how I could test her vision to confirm if she is blind?