I currently wear glasses and am looking to make the switch over to contact lenses. I have my current corrective prescription but when I go to make an online purchase they ask for a sph and cyl or base curve and diameter number that's not on my prescription (come find out it was an additional $100 for the contact exam).So is there any average number I can put in or a way to measure myself or by someone else???
См. статью: Can I fake my prescription to make an online purchase for contact lenses?