Devices descending from K022128
24 later devices reach Boston Equalens II (Oprifocon a) Rigid Gas Permeable Contact Lens through their predicates, nearest generation first.
| Generation | Number | Device | Applicant | Decided | Own descendants | Recalls |
|---|---|---|---|---|---|---|
| +1 | K170001 | Acuity 85 (Oprifocon A) Rigid Gas Permeable Contact Lens | Acuity Polymers, Inc. | 2017 | 1 | — |
| +1 | K153066 | BostonSight IC Corneal Lens, BostonSight IC Scleral Lens | Boston Foundation For Sight | 2016 | 20 | — |
| +1 | K103561 | Menicon Z (Tisilfocon a) Rigid Gas Permeable Contact Lens | Menicon Co, Ltd. | 2011 | 0 | — |
| +2 | K181579 | eLens Rigid Gas Permeable Contact Lens for Daily Wear, eLens Rigid Gas Permeable Contact… | E&E Optics, Inc. | 2018 | 0 | — |
| +2 | K161461 | BostonSight PD Prosthetic Device | Bostonsight | 2016 | 19 | 1 |
| +3 | K212631 | Optimum Infinite (tisilfocon A) Daily Wear Contact Lenses | Contamac, Ltd. | 2022 | 7 | — |
| +3 | K203571 | Acuity 200 (fluoroxyfocon A) Rigid Gas Permeable Contact Lens | Acuity Polymers, Inc. | 2021 | 6 | — |
| +3 | K183175 | BostonSight Scleral | Bostonsight | 2019 | 1 | 1 |
| +3 | K171404 | BOSTON XO (hexafocon A), BOSTON XO2 (hexafocon B) | Bausch + Lomb, Incorporated | 2017 | 14 | — |
| +3 | K170335 | Custom Stable (TM) Rigid Gas Permeable Scleral Contact Lens | Valley Contax, Inc. | 2017 | 1 | — |
| +4 | K253822 | GPA (hexafocon A) Rigid Gas Permeable Contact Lenses | Zhuhai Fitlens Medical Technology Co., Ltd. | 2026 | 0 | — |
| +4 | K241398 | SDJMASTERVISION (fluoroxyfocon A) Rigid Gas Permeable Contact Lenses | Tianjin Mastervision Technology Co., Ltd. | 2024 | 0 | — |
| +4 | K241571 | BostonSight® Specialty Lenses | Boston Foundation For Sight, Inc. D/B/A Bostonsight | 2024 | 0 | — |
| +4 | K233325 | Visionary Optics Scleral Contact Lens (roflufocon D, roflufocon E, hexafocon A… | Visionary Optics, LLC | 2024 | 4 | — |
| +4 | K230910 | NewVision SC (tisilfocon A) Scleral Lens; NewVision SC Daily Wear Ortho-K (tisilfocon A)… | Acculens, Inc. | 2023 | 0 | — |
| +4 | K221768 | Oxfore®100 (hexafocon A) Rigid Gas Permeable Contact Lenses | Paragon Vision Sciences, Inc. | 2023 | 0 | — |
| +4 | K223394 | Visionary Optics Scleral Contact Lens (roflufocon D, roflufocon E, hexafocon A… | Visionary Optics, LLC | 2022 | 5 | — |
| +4 | K213880 | Custom Stable Rigid Gas Permeable Scleral Contact Lens | Valley Contax, Inc. | 2022 | 0 | — |
| +4 | K213538 | Acuity 200 with Tangible Hydra-PEG (fluoroxyfocon A) Rigid Gas Permeable Contact Lens | Acuity Polymers, Inc. | 2021 | 4 | — |
| +4 | K183167 | Boston ES (enflufocon A) Rigid Gas Permeable Contact Lens; Boston EO (enflufocon B)… | Bausch & Lomb, Incorporated | 2019 | 5 | — |
| +4 | K180616 | OPTIMUM GP (roflufocon D, roflurocon E) Daily Wear Contact Lens, HEXA100 (hexafocon A)… | Contamac, Ltd. | 2018 | 9 | — |
| +5 | K242393 | Acuity 181™ (tisilfocon A) and Acuity 181™ (tisilfocon A) with Tangible™ Hydra-PEG®… | Acuity Polymers, Inc. | 2024 | 0 | — |
| +5 | K240618 | Acuity 200™ (fluoroxyfocon A) Rigid Gas Permeable Contact Lens; Acuity 100™ (hexafocon… | Acuity Polymers, Inc. | 2024 | 3 | — |
| +5 | K230965 | Acuity 100™ (hexafocon A) with Tangible™ Hydra-PEG®, TYRO™-97 (hofocon A) with Tangible™… | Acuity Polymers, Inc. | 2023 | 4 | — |