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sof-form 55 methafilcon a soft hydrophilic lens
Unilens Corp., U
Summary: The sof-form 55 methafilcon a lens is a soft hydrophilic contact lens used for vision correction. It is primarily used by optometrists and ophthalmologists for patients requiring vision correction.
FDA Clearance Information
Pathway
PMA
Number
P890040 ↗
Decision Date
June 29, 1992
Product Code
LPM
Device Class
Class 3
Evidence
419 studies
The sof-form 55 methafilcon a lens received FDA clearance through the premarket approval (PMA) pathway on June 29, 1992. Manufactured by Unilens Corp., this device is classified as Class 3 under product code LPM.
What It Is
The sof-form 55 methafilcon a lens is a soft contact lens made from methafilcon A, a hydrophilic material that retains moisture and ensures comfort for the wearer. These lenses are designed to correct refractive errors such as myopia or hyperopia by focusing light directly onto the retina. The hydrophilic nature of the lens material allows for high oxygen permeability, which is crucial for maintaining corneal health.
Clinical Applications
These lenses are commonly used in optometry and ophthalmology practices for patients who require vision correction. They are suitable for a wide range of patients, including those with active lifestyles who prefer contact lenses over glasses. The lenses are typically fitted in outpatient settings and can be prescribed for daily wear, depending on the patient's needs and eye health.
Indications for Use
The FDA-cleared indication for the sof-form 55 methafilcon a lens is for vision correction in patients with refractive errors. This includes conditions such as nearsightedness (myopia) and farsightedness (hyperopia), where the lens helps focus light properly onto the retina.
Practical Considerations
These lenses are available in various sizes and prescriptions to accommodate different patient needs. Proper fitting by an eye care professional is essential to ensure comfort and effectiveness. Patients should be instructed on proper lens care and hygiene to prevent infections and maintain lens integrity.
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 sof-form 55 methafilcon a lens used for?
It is used for correcting refractive errors such as myopia and hyperopia.
What specialties typically use this device?
Optometrists and ophthalmologists typically use this device for vision correction.
What are the FDA-cleared indications?
The lens is indicated for vision correction in patients with refractive errors like nearsightedness and farsightedness.
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.