📋 FDA Reference
Frequency 55 Uv Methafilcon a Hydrophilic Contact Lens for Daily Wear Clear and Tinted with Uv Blocker
Aspect Vision Care
Summary: The Frequency 55 UV Methafilcon A is a hydrophilic contact lens designed for daily wear, available in clear and tinted versions with UV blocking. It is primarily used by optometrists and ophthalmologists for vision correction.
FDA Clearance Information
Pathway ?
510(k)
Number ?
K982997 ↗
Decision Date ?
January 20, 1999
Product Code ?
LPL
Device Class ?
Class 2
Evidence ?
419 studies
The Frequency 55 UV Methafilcon A contact lens was cleared through the FDA 510k pathway on January 20, 1999. Manufactured by Aspect Vision Care, it is classified as a Class 2 medical device.
What It Is
The Frequency 55 UV Methafilcon A is a soft contact lens made from methafilcon A, a hydrophilic material that retains moisture for comfortable daily wear. It includes a UV blocker to protect the eyes from harmful ultraviolet rays. The lens is available in both clear and tinted options, catering to a variety of patient preferences and needs.
FDA-Cleared Indications
- Daily-wear vision correction for refractive errors.
- Use as a clear or tinted hydrophilic contact lens with UV blocking.
Clinical Applications
- Correction of vision in patients prescribed daily-wear soft contact lenses.
- Correction of refractive errors such as myopia or hyperopia when supported by the prescribed lens parameters.
- Use of tinted lenses when a tinted daily-wear lens is prescribed.
- Use in adults and adolescents when fitted and prescribed by an eye-care professional.
Practical Considerations
- The lens should be fitted and prescribed by an optometrist or ophthalmologist; available parameters, powers, base curves and diameters should be confirmed from current product documentation.
- Follow the prescribed wearing schedule and handling instructions. Clean, disinfect and store reusable lenses only with an eye-care professional-approved contact-lens solution.
- Do not sleep in the lenses, extend wearing time, or use them in water unless specifically directed by an eye-care professional.
- Patients with eye infection, significant ocular inflammation, unexplained eye pain or intolerance should remove the lens and seek professional evaluation.
- A contact lens is not an implanted device and has no meaningful MRI-safety restriction; remove it if requested for an eye examination or procedure.
Linked Studies (20)
PubMed • 2025
Onyx Liquid Embolic Agent: Basic Knowledge for Its Use in Interventional Neuroradiology.
Journal of neuroendovascular therapy
RCT|prospective|retrospective|case Series|other View Source →PubMed • 2025
Performance evaluation of quantitative hemoglobin A2 and fetal hemoglobin testing using commercially lyophilized vs. in-house whole blood controls in Chinese clinical laboratories: a 12-year analysis of National External Quality Assessment Data.
Clinical chemistry and laboratory medicine
RCT|prospective|retrospective|case Series|other View Source →PubMed • 2025
Clinical progress note: Haemophilus influenzae type b.
Journal of hospital medicine
RCT|prospective|retrospective|case Series|other View Source →PubMed • 2025
Pilot study of social media promotion of home-based self-testing for syphilis.
Sexually transmitted diseases
RCT|prospective|retrospective|case Series|other View Source →PubMed • 2025
Clinical development and performance of the First to Know Syphilis Self-Test for over-the-counter usage: a de novo rapid test for treponemal antibody.
Journal of clinical microbiology
View Source →PubMed • 2025
Implementation of an Opt-Out and Rapid Point-of-Care Syphilis Testing Program for Pregnant Patients Presenting to the Emergency Department.
Sexually transmitted diseases
RCT|prospective|retrospective|case Series|other View Source →PubMed • 2025
Evaluation of Rapid Syphilis Testing Using the Syphilis Health Check in Florida, 2015-2016.
Florida public health review
View Source →PubMed • 2025
Multiplex droplet digital PCR for the detection and quantitation of Streptococcus pneumoniae, Mycoplasma pneumoniae, and Haemophilus influenzae.
Frontiers in cellular and infection microbiology
RCT|prospective|retrospective|case Series|other View Source →PubMed • 2025
Palm Multidiagnostic of Mycoplasma pneumoniae, Chlamydia pneumoniae, Haemophilus influenzae, and Streptococcus pneumoniae Using One-Tube CRISPR/Cas12a.
Transboundary and emerging diseases
View Source →PubMed • 2025
Tp40: a new potential prognostic and diagnostic marker for syphilis.
Microbiology spectrum
View Source →PubMed • 2025
Serotonin sets up neutrophil extracellular traps to promote neuroendocrine prostate cancer metastasis in the liver.
The Journal of clinical investigation
RCT|prospective|retrospective|case Series|other View Source →PubMed • 2025
Application value of Philips Ingenuity TF PET/CT scanner imaging agent FAP in evaluating renal fibrosis.
Hellenic journal of nuclear medicine
RCT|prospective|retrospective|case Series|other View Source →PubMed • 2025
Message from Dr. Philippe T. Georgel, Guest Editor for the Marshall University Collection, Brad D. Smith, President of Marshall University, and Dr. Anivandan Mukherjee, Provost of Marshall University.
Biochemistry and cell biology = Biochimie et biologie cellulaire
View Source →PubMed • 2025
Improved patient comfort and procedural efficiency using chlorhexidine-coated hydrophilic urethral catheters: a randomized controlled trial.
Journal of Yeungnam medical science
RCT View Source →PubMed • 2025
pTx-Pulseq in hybrid sequences: Accessible and advanced hybrid open-source MRI sequences on Philips scanners.
Magnetic resonance in medicine
RCT|prospective|retrospective|case Series|other View Source →PubMed • 2025
Comparative connectomics of Drosophila descending and ascending neurons.
Nature
RCT|prospective|retrospective|case Series|other View Source →PubMed • 2025
Hydrophilic-coated sheaths for reducing radial artery spasm during transradial procedures: A systematic review and meta-analysis.
Interventional neuroradiology : journal of peritherapeutic neuroradiology, surgical procedures and related neurosciences
View Source →PubMed • 2025
History of antineutrophil cytoplasmic autoantibodies : Milestones in rheumatology.
Zeitschrift fur Rheumatologie
View Source →PubMed • 2025
A Hydrophilic Polyurethane Foam Containing Nigella sativa Oil as a Wound Dressing.
BioMed research international
RCT|prospective|retrospective|case Series|other View Source →Frequently Asked Questions
What is Frequency 55 UV Methafilcon A used for?
It is used for vision correction in patients with refractive errors such as myopia, hyperopia, and astigmatism.
What specialties typically use this device?
Optometrists and ophthalmologists typically use these lenses in their practice for vision correction.
What are the FDA-cleared indications?
The lenses are indicated for daily wear to correct refractive errors and provide UV protection.
Disclaimer: This page compiles publicly available regulatory and published clinical evidence for educational reference.
It does not constitute medical advice, product endorsement, or a recommendation for clinical use.
Always consult manufacturer documentation and clinical judgment for patient care decisions.