I've found exogenous ketones (mainly MCT oil) to be the best help in combatting light sensitivity. And believe it or not, staring into a light with certain colors (syntonics or syntonic phototherapy) helps a lot too.

Blue blocker glasses help me tremendously. I have never tried Therapspecs, but I did get the Axon Optics brand of Fl-41 tint. Every brain responds differently to different colors. I do well with yellow and green tints.