What are wave lenses?
The WAVE Contact Lens System provides the eye care professionals with an advanced CAD/CAM software platform to empirically design fully customized rigid contact lenses based on patients corneal topography or tomography maps and to send the designs to the lab for production. Request Product Info » Scleral Contact Lenses.
What is a contact lens assessment?
A contact lens assessment is the name given to the procedure in which you undergo an eye test followed by a contact lens fitting. It may sound daunting but it is a straightforward process which ensures that you are fitted with lenses which are suitable for you.
What are the parameters required for contact lens?
Summary
| Contact lens Parameters | Unit of measurement | More information |
|---|---|---|
| Average | millimeter | from 13.00 to 15.00 |
| Cylinder | dioptre | from –0.25 to –10.00, toric contact lenses |
| Cylinder axis | degree | from 0 to 180, toric contact lenses |
| Addition | dioptre | from 1.00 to 3.00, multifocal lenses |
What is Wave technology?
A “wave” of technology is common parlance for describing the wide-scale dispersal of new automation, mechanics or applied science. Technological waves are hard to predict yet often leave an indelible impact on a particular aspect of culture, industry and medicine.
What is Essilor wave technology?
Through W.A.V.E. Technology, Essilor has adapted the wavefront technology used in laser surgery to correct vision by detecting and even eliminating many surface distortions inherent in progressive lenses. Through W.A.V.E. Technology, Varilux Physio utilizes a front side design and digital surfacing on the molds.
Which protein is present in eye lens?
crystallin
In anatomy, a crystallin is a water-soluble structural protein found in the lens and the cornea of the eye accounting for the transparency of the structure.
Which material is used in contact lenses?
Table 2
| Material | Oxygen Permeability (Dk/t) | Modulus (MPa) |
|---|---|---|
| PMMA-silicone | 15 | |
| Silicone-HEMA (rigid) | 10–100 | 10 |
| HEMA hydrogel | 10–50 | 0.2–2 |
| HEMA-NVP |
How do you measure contact lenses?
Generally, your eye doctor will use a keratometer to measure the curve of your cornea, which is the front surface of the eyes – where contacts rest. These numbers help to determine the lens diameter and base curve that appear on your contact lenses prescription.
How do you test contacts?
If you wear or want contacts, you need a contact lens exam in addition to a comprehensive eye exam. Your eye doctor will perform special tests during a contact lens exam to evaluate your vision with contacts. The first test will measure your eye surface to determine what size and type of contacts are best for you.
What is axis and cylinder in contacts?
Prescription Figures for Astigmatism Cylinder (CYL): The cylinder will always be a minus number that increases in measures of 0.25. Axis (AX): Astigmatism is caused by the irregular curvature of the eye; the axis is a figure which determines the angle of the correction needed in order to see clearly.
