Get a small bell or click your fingers gently near the tank and then feed him but always feed him in the same spot and get him used to taking food from you finger by placing it in front of his mouth, dont worry it will only take a week or so to train him, this way if it happens he will be easy to feed,
Good news is that, IME, your boy doesn't look to be the type to get Diamond/Snake Eye. I've probably had three dozen or more DS and the only one that developed Diamond eye was my first who, at this age, already had a bit of scale growth over his eye.
Any Betta can go blind so it's a good idea to do as Mr. Grumpy said and always feed in the same spot. This is good for well-sighted Betta in a community tank: Feed them in one corner and drop food for their tank mates in the opposite.