When it becomes clear that you will inevitably be flying thru the sun (our field also faces south), close one eye before you enter the sun's area, open it after you leave. That way at least one eye isn't spotty after.

When we have a northwest wind (25% of the time in summer), the sun sets near the upwind end of the runway, so all takeoffs involve flying thru the sun. When we have a southeast wind, all landing approaches go thru the sun. Wish we could turn the field around...

Most of the time, tho, it's pretty damn good!

J