I have not had arc flash in over 20 years, ever since I began wearing uv filter safety glasses.
And believe me if you have ever seen a pipefitter work with his welder you will know how many times we get flashed.
It is not the brightness that makes the eye burn, it is the uv.
Standard clear lensed uv rated saftey glasses are your friend for 2 reasons, arc flash and foreign objects.
Put them on and get used to wearing them, someday you too may be glad you did.