My situation is quite unique--I have an irregular astigmatism that makes it difficult to correct my vision to 20/20 without having to wear rigid contacts. Without my contacts, my vision is 20/25, both eyes. I didn't even notice I had an astigmatism until I visited an Optometrist for the first time in years. If I hold a 1st class medical that requires contact lenses, can I elect NOT to wear them when I am conducting 3rd class activities? 3rd class only requires 20/40 distant vision. My vision is quite good without correction, and rigid contacts can be quite painful for extended periods of wear. I would rather not wear them if am I just flying around for fun. I've flown for hundreds of hours without any correction and I don't feel that I am any less safe when I don't wear my contacts.