US 11,933,941 B2
Weekly and monthly disposable water gradient contact lenses
Yongxing Qiu, Suwanee, GA (US); John Dallas Pruitt, Suwanee, GA (US); Newton T. Samuel, Suwanee, GA (US); Chung-Yuan Chiang, Johns Creek, GA (US); Robert Carey Tucker, Johns Creek, GA (US); Yuan Chang, Atlanta, GA (US); and Ethan Leveillee, Atlanta, GA (US)
Assigned to Alcon Inc., Fribourg (CH)
Filed by Alcon Inc., Fribourg (CH)
Filed on Jan. 11, 2022, as Appl. No. 17/572,794.
Application 17/572,794 is a continuation of application No. 16/204,641, filed on Nov. 29, 2018, granted, now 11,256,003.
Claims priority of provisional application 62/598,028, filed on Dec. 13, 2017.
Claims priority of provisional application 62/598,025, filed on Dec. 13, 2017.
Claims priority of provisional application 62/598,029, filed on Dec. 13, 2017.
Claims priority of provisional application 62/598,018, filed on Dec. 13, 2017.
Prior Publication US 2022/0137263 A1, May 5, 2022
This patent is subject to a terminal disclaimer.
Int. Cl. G02B 1/04 (2006.01); B05D 5/00 (2006.01); B29D 11/00 (2006.01); B29K 105/00 (2006.01); B65B 55/22 (2006.01); C08L 33/02 (2006.01); C08L 79/04 (2006.01); C08L 83/04 (2006.01); C09D 133/02 (2006.01); G02B 1/18 (2015.01); G02C 7/04 (2006.01); B05D 1/18 (2006.01); B05D 1/38 (2006.01); B05D 3/00 (2006.01); B05D 3/02 (2006.01); B05D 5/10 (2006.01); B29K 83/00 (2006.01)
CPC G02B 1/043 (2013.01) [B05D 5/00 (2013.01); B29D 11/00038 (2013.01); B29D 11/00125 (2013.01); B29D 11/00865 (2013.01); B65B 55/22 (2013.01); C08L 33/02 (2013.01); C08L 79/04 (2013.01); C08L 83/04 (2013.01); C09D 133/02 (2013.01); G02B 1/18 (2015.01); G02C 7/049 (2013.01); B05D 1/18 (2013.01); B05D 1/38 (2013.01); B05D 3/002 (2013.01); B05D 3/02 (2013.01); B05D 5/10 (2013.01); B29K 2083/00 (2013.01); B29K 2105/0061 (2013.01); C08L 2201/10 (2013.01); C08L 2201/54 (2013.01); G02B 2207/109 (2013.01)] 26 Claims
OG exemplary drawing
 
1. A contact lens, having:
a reduction in indentation force at an indentation depth of 400 nm, Δ(IF)400nm, of about 50% or larger;
a polyquaternium-1 uptake of about 0.40 micrograms/lens or less; and
a water-break-up time of at least 10 seconds and/or a friction rating of about 2.0 or lower after simulated abrasion cycling treatment,
wherein the contact lens comprises an anterior surface, an opposite posterior surface, and a layered structural configuration, wherein the layered structural configuration comprises, in a direction from the anterior surface to the posterior surface, an anterior outer hydrogel layer, an inner layer of a lens material, and a posterior outer hydrogel layer,
wherein the inner layer is a preformed contact lens essentially made of a silicone hydrogel material.