Devices descending from K954524
8 later devices reach W-55 (Methafilon a) Contact Lens through their predicates, nearest generation first.
| Generation | Number | Device | Applicant | Decided | Own descendants | Recalls |
|---|---|---|---|---|---|---|
| +1 | K992010 | W-55 (Methafilcon a) Clear and Visibility Tinted Lens Blank and Horizon 55 Soft (Clear)… | Westcon Contact Lens Co., Inc. | 1999 | 7 | — |
| +2 | K031774 | Horizon (Methafilcon a) Daily Wear Sphere and Toric Contact Lenses | Westcon Contact Lens Co., Inc. | 2004 | 5 | — |
| +2 | K011577 | Ocu-Flex 55 Spherical, Toric,Thin Zone Toric,Aspherical,Toric Aspherical and Thin Zone… | Ocu-Ease Optical Products, Inc. | 2001 | 0 | — |
| +3 | K043540 | Horizon 59 Oasis (Hioxifilcon a) Daily Wear Contact Lenses | Westcon Contact Lens Co., Inc. | 2005 | 4 | — |
| +4 | K080686 | Westcon Horizon 49% (Hioxifilcon B) | Westcon Contact Lens Co. | 2008 | 0 | — |
| +4 | K070308 | Flexlens Multifocal Soft Contact Lens, (Hioxifilcon a) and (Hioxifilcon B) for Daily Wear | X-Cel Contacts | 2007 | 2 | — |
| +5 | K100443 | Definitive, Flexlens - Silicone Hydrogel | X-Cel Contacts, Inc. | 2010 | 1 | — |
| +6 | K242059 | Flexlens Silicone Hydrogel Daily Wear Soft (Hydrophilic) Contact Lens (efrofilcon A) | X-Cel Specialty Contacts, A Walman Optical Company | 2024 | 0 | — |