Using Progressives for Music Experiment - Day 2

I'll update this as the day progresses. However, I thought I'd share the play-by-play of my "progressives" experiment so far: Time Length Goal: 1 hour minimum Time Length Progressives Worn: 1:30 PM - 2:57 PM (1 hour 27 min.) Tasks: Cooking and piano teaching Part of the Lenses Used: 90 % Intermediate distance, 10% Distance, 0% Near Symptoms Felt: Like I just got off a roller coaster at Universal Studios with flashing lights - nausea, mild headache in occipital lobe area, which later spread to the temples. Felt irritable by the end of the session.