There are some who cannot stand wearing glasses. There are those who want to look younger. Do you want to go skydiving this weekend and want to make the most of the view? There are many reasons for buying contact lenses.
Reasons to buy contacts
Aesthetics are probably the number one reason most people have for obtaining and using contacts. Contacts allow people to see without others knowing the wearer has vision issues. This is true, unless, on the contrary, the wearer opts for colored contacts.
Performance is another advantage. Contact lenses offer the advantage of providing a better visual field than traditional glasses because of the absence of frames and because they follow the movements of the eye. Whatever your ametropia, your visual acuity is optimized!
Over time, the installation and maintenance of contact lenses become natural gestures, made in less than two minutes. Lovers of sports or outdoor activities, contact lenses are very practical for running, jumping, or practically anything.
The diameter of a pair of contacts corresponds to the size of the lens and must be suitable for the size of the cornea. If the contact lenses are too big or too small, they can cause problems. The “Curve Base” is the curvature radius of the lens. It must have a shape adapted to the wearer’s cornea to bring him or her the best comfort.
An overly large curve will make the lens unstable; a radius too small will cause discomfort. In both cases, the person’s vision will be lessened. The sphere corresponds to the correction of either myopia or hyperopia (+ or -).
The cylinder/axis corrects astigmatism. These two values are related and indicate, respectively, the amount and the main direction of the patient’s astigmatism.
The terms below are for progressive lenses only, allowing people with presbyopia to see from near and far.
- Low/Med/High is the addition level for the nearsightedness
- Near/Far promotes near or far vision
- Add corresponds to the value of the addition for a close view
Other characteristics are taken into account by the optician: lens thickness, hydrophilicity rate, ionicity, permeability and oxygen transmissibility, etc.