This was early a.m. in so cal.Hi Rad,
Such a terrible time of day ... and a facing West - Southwest too.
Since you can't control those externalities, plus there's not much she could really adjust to her catching positioning in those conditions.
You could try to find her a GOOD pair of sunnies, and if her facemask has an opening above the eyes (at the forehead) ... you can try a mask sunshade or use athletic tape to close up that space to minimize the sun's access.
It's not a bad idea to try her best to utilize the glove for sun cover. As you're aware, fun things usually never happen to an exposed throwing hand and fingers that won't bend back easily.
He was a very active umpire.Dud the umpire miss "m"any calls due to the "conditions"?