lp gas or similarly pure butane gas volume expands to approximately 250 x its liquid volume varying of course by pressure temperature and gas chemistry or actual composition lp gas tank fill volume is typically to 80 85 % of capacity leaving vapor space in the tank
The good news is that six months after Laser Eye Surgery, you can, in most cases, wear coloured or cosmetic contact lenses. You will, however, need to see your optometrist before purchasing any coloured lenses as the shape of your eyes will have changed due to the surgery.
If you are wearing contact lenses, remove them before using eye drops. Wait at least 15 minutes before replacing your contact lenses. Tilt your head back, look upward, and pull down the lower eyelid to make a pouch. Hold the dropper directly over your eye and place 1 drop into the pouch.