The processing speed of neurons are stable and not subject to adaptation, stress or environmental factors.
ChromaGen lenses are precision tinted, with a proprietary formula that has specific hue, saturation and value components.
They are the same color in either a contact lens or spectacle prescription.
No. The optic nerve does not change with puberty. Once the ChromaGen filters are determined they will remain the same. The only change may be the patient’s refractive error over time.
Low plus (~ +0.50) added to a ChromaGen Rx can be very beneficial. The best way to check for low plus, and against the rule cylinder, is to do near point retinoscopy. Use either plano or the patients habitual Rx and have the patient view age and grade appropriate text. For patients with higher than average phorias consider using yoke prism. For exo deviations 2 PD base UP and for eso deviations 2 PD base DOWN.
Please contact your vision insurance for coverage options.
Clip ons – Customizable?
Yes, all clip ons are custom fit. The Lab will need the frames to ensure the correct fit.
Anti Scratch Coating ChromaGen comes with a one year anti scratch warrantee.
What is the turn around time for glasses? ChromaGen lenses are usually shipped within 10 business days after placing the order.
Are the ChromaGen contact lenses hard or soft?
They are soft silicone lenses.
What material is available for contact lenses?
Materials available are: Methafilcon 55% water and Hioxifilcon 49% water / both Sphere and Toric.
What is the standard Base Curve?
The standard Base Curve is 8.6, but can be customized for each patient.
What is the standard Diameter?
The standard Diameter is 14.5, but can be customized for each patient.
Why is the measurement of the Pupil Zone needed?
The pupil zone is needed because the ChromaGen tint is only added to this area of the contact lens.
How often should the ChromaGen contact lenses be replaced?
It is recommended that these lenses should be replaced every six months.
What is the date on the vial of the contact lenses for?
The short date on the vial is for the doctor to know that the lenses need to be dispensed to the patient within 30 days. This is NOT the expiration date.
What is the turn-around time for contact lenses?
ChromaGen contact lenses are usually shipped within 10-14 business days after placing the order.
The patient will have to wear their ChromaGen lenses all their life. It is just like wearing a pair of glasses with a normal prescription. If they wear their glasses, they will get the intended benefit, it they don’t wear their glasses, they will not.