Patent ID: 8460743

Claim:
A method for coating an ophthalmic lens in a primary package comprising the steps of: (a) forming a first polyionic coating solution comprising at least one positively charged polyionic material which is polyamidoamine epichlorohydrin; (b) forming a second polyionic coating solution comprising at least one negatively charged polyionic material; (c) forming a coating on an ophthalmic lens by contacting the ophthalmic lens in the primary package with said first polyionic coating solution and adding said second polyionic coating solution to said first polyionic coating solution, wherein the coating comprises said negatively charged material and said positively charged material and the ophthalmic lens with the coating thereon is immersed in a remaining-after-coating solution in the primary package; (d) sealing the primary package containing the ophthalmic lens immersed in the remaining after-coating solution; (e) autoclaving and then maintaining said coated ophthalmic lens in said primary package with the remaining after-coating solution until insertion of the ophthalmic lens in the eye of the ophthalmic lens user, wherein the remaining after-coating solution in the primary package is ophthalmically compatible and has an osmolarity from 270 to 350 mOsmol/kg.