T Tina New member Jul 14, 2009 #1 I have 3 lens. 1) Hard lens 2) RGP lens 3) Soft lens What would be an example of polymer for each one? An advantage or improvement in technology? and a disadvantage for each one? Thanks
I have 3 lens. 1) Hard lens 2) RGP lens 3) Soft lens What would be an example of polymer for each one? An advantage or improvement in technology? and a disadvantage for each one? Thanks
