Difference between revisions of "Template:FDA classification of soft contact lens materials"

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|{{abbr|HEMA|2-Hydroxyethyl methacrylate}}, {{abbr|MAA|methacrylic acid}}, PVP
 
|{{abbr|HEMA|2-Hydroxyethyl methacrylate}}, {{abbr|MAA|methacrylic acid}}, PVP
 
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'''DA'''{{nbsp}}– [[diacetone acrylamide]]; '''DMA'''{{nbsp}}– [[N,N-dimethylacrylamide|''N'',''N''-dimethylacrylamide]]; '''HEMA'''{{nbsp}}– [[2-Hydroxyethyl methacrylate]]; '''MAA'''{{nbsp}}– [[methacrylic acid]]; '''MMA'''{{nbsp}}– [[methyl methacrylate]]; '''NCVE'''{{nbsp}}– [[N-carboxl vinyl ester|''N''-carboxl vinyl ester]]; '''NVP'''{{nbsp}}– [[N-vinyl pyrrolidone|''N''-vinyl pyrrolidone]]; '''PBVC'''{{nbsp}}– poly[dimethylsiloxyl] di[silybutanol] bis[vinyl carbamate]; '''PC'''{{nbsp}}– [[phosphorylcholine]]; '''TPVC'''{{nbsp}}– [[tris-(trimethylsiloxysilyl) propylvinyl carbamate]]; '''TRIS'''{{nbsp}}– [[tris-(hydroxylmethyl) aminomethane]]
 
'''DA'''{{nbsp}}– [[diacetone acrylamide]]; '''DMA'''{{nbsp}}– [[N,N-dimethylacrylamide|''N'',''N''-dimethylacrylamide]]; '''HEMA'''{{nbsp}}– [[2-Hydroxyethyl methacrylate]]; '''MAA'''{{nbsp}}– [[methacrylic acid]]; '''MMA'''{{nbsp}}– [[methyl methacrylate]]; '''NCVE'''{{nbsp}}– [[N-carboxl vinyl ester|''N''-carboxl vinyl ester]]; '''NVP'''{{nbsp}}– [[N-vinyl pyrrolidone|''N''-vinyl pyrrolidone]]; '''PBVC'''{{nbsp}}– poly[dimethylsiloxyl] di[silybutanol] bis[vinyl carbamate]; '''PC'''{{nbsp}}– [[phosphorylcholine]]; '''TPVC'''{{nbsp}}– [[tris-(trimethylsiloxysilyl) propylvinyl carbamate]]; '''TRIS'''{{nbsp}}– [[tris-(hydroxylmethyl) aminomethane]]
 
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Revision as of 20:49, 3 September 2020

FDA classification of soft contact lens materials[1]
FDA lens group Adopted name Transmissibility level

(Dk x10-11)

Water content Chemical composition
I
non-ionic
low water content
galyfilcon A 60 47%
lotrafilcon A 140 24% DMA, siloxane, TRIS
lotrafilcon B 110 33%
polymacon 7.5 36% HEMA
tetrafilcon 9.0 43.5% HEMA, MMA, NVP
II
non-ionic
high water content
alphafilcon A 22.9 66% HEMA, NVP
hilafilcon A 26.9 70%
omafilcon A 19.6 62% HEMA, PC
III
ionic
low water content
balafilcon A 99 36% NCVE, NVP, PBVC, TPVC
bufilcon A 16.0 45% DA, HEMA, MAA
IV
ionic
high water content
etafilcon A 17.0 58% HEMA, MAA
ocufilcon D 19.7 55%
vifilcon A 16.0 55% HEMA, MAA, PVP
Template:Smalldiv
  1. Stretton, Serina (October 2004). "Should Silicone Hydrogels be Placed in a Separate FDA Soft Contact Lens Category?". siliconehydrogels.org. Retrieved 3 September 2020.