# K982997: Frequency 55 UV (Methafilcon a) Hydrophilic Contact Lens for Daily Wear (Clear and Tinted with UV Blocker)

- Pathway: 510(k) (Traditional)
- Applicant: Aspect Vision Care, Ltd.
- Decided: Jan 20, 1999 after 146 days
- Product code: LPL (Lenses, Soft Contact, Daily Wear)
- Device class: 2
- Regulation: 21 CFR 886.5925
- Recalls of this device: none
- Data: FDA decisions to Oct 25, 2026; recalls to Oct 12, 2026

## Lineage
Longest line of descent: 3 generations back to K951893 (1995). 4 ancestors in all.
6 later devices descend from it; 2 cite it directly.
0 of 11 devices in its family (counting itself) have a Class I recall.

## Predicates on the family tree (from the FDA summary)
- K973063: Frequency 55 (Methafilcon a) Hydrophilic Contact Lens for Daily Wear, Aspect Vision Care, Ltd. (1997) Summary page 1.

## Most influential descendants
- K020392: Frequency 55 UV (Methafilcon a) Soft (Hydrophlic) Contact Lens for Daily Wear (2002), 3 descendants of its own
- K182247: ILICON (ocufilcon D) Soft (Hydrophilic) Daily Wear Contact Lenses (Tinted, Color) (2018), 2 descendants of its own
- K993252: Methafilcon a Soft Hydrophilic Contact Lenses, Frequency 55, Frequency 55 UV (to BE Marketed YR. 2000), Frequency 55 Asp (1999), 1 descendant of its own
- K243953: Aurora (ocufilcon D) Soft (Hydrophilic) Daily Wear Contact Lens (Tinted, Color) (2025), 0 descendants of its own
- K192225: Legacy (Ocufilcon D) Performance- Tinted Soft (Hydrophilic) Daily Wear Contact Lenses (2019), 0 descendants of its own

## Indications for use
The FREQUENCY™ 55 UV (methafilcon A) Hydrophilic Contact Lens (clear and tinted) is indicated for daily wear for the correction of refractive ametropia (myopia and hyperopia) and astigmatism in aphakic and not-aphakic persons with non-diseased eyes that may exhibit astigmatism up to 2.00 Diopters that does not interfere with visual acuity. Eyecare practitioners may prescribe the lens for daily wear in a Frequent Replacement Program. The lenses may be disinfected using chemical or hydrogen peroxide disinfection systems.

Source page: https://510kreport.com/device/K982997
Methodology: https://510kreport.com/methodology