TYPES OF CONTACT LENS
These are the most comfortable lenses and easiest to get used to.
Since they have a larger optical field, they provide a wider field of view. They are the lens group with the highest number of users thanks to high oxygen permeability.
- Replacement schedule contact lenses (monthly disposable)
- Daily lenses
- Toric lenses (for astigmatism)
- Lenses for near and distant vision
- Overnight wear contact lenses
- Aphakic lenses (pediatric)
- High-diopter and extended wear lenses
Spherical Contact Lenses
Soft contact lenses for the correction of spherical refractive errors without astigmatism.
Toric Contact Lenses
Soft contact lenses that correct astigmatic refractive errors.
Multifocal Contact Lenses
Soft contact lenses which correct presbyopia, age-related loss of far vision which develops after the age of 40, and provide both near and far vision are called multifocal contact lenses.
Gas-Permeable Lenses (Rigid lenses)
Rigid lenses offer high oxygen permeability in addition to optical quality and durability. They provide the best results in the correction of corneal astigmatism and keratoconus, i.e. people with coning of the cornea.
Hybrid Contact Lenses
These lenses are used in keratoconus, an eye disease in which the clear corneal layer in front of the eye becomes thinner and bulges forward. A rigid lens material is used for the optics, i.e. center, of the lens while a soft lens material is used for the haptics, i.e. the peripheral part.
Keratoconus patients often have high astigmatism so adequate vision cannot be achieved with eye glasses and soft contact lenses. Therefore, clear vision is achieved with gas permeable rigid contact lenses in these patients. However, adjustment to these lenses is difficult and not every patient can use them. Hybrid contact lenses have a rigid center and a soft periphery. Patients can have a more comfortable and clear vision with hybrid contact lenses.
Color Contact Lenses
It is possible to have natural, stunning looks with color lenses. For eyes with refractive errors, color lenses can not only correct the refractive error, but also give the person their choice of eye color.
Chromagen lenses are unique products designed to help people who have color deficiency and difficulty in reading. Chromagen haploscopic filters are specially chromized and can be worn as glasses or contact lenses. These have been developed for people with color blindness and trials have demonstrated a success rate of 97%.
How Does Chromagen Work?
Chromagen haploscopic lenses change the level of each color going into the non-dominant eye and, in some cases, both the dominant and non-dominant eye, enabling enhanced color perception and color discrimination. For many people, developments in color perception and discrimination can be dramatic. The brightness of each color is strongly enhanced, including the colors perceived correctly.
Purposes of Chromagen Lenses:
- Enhancing overall color perception
- Achieving clearer and brighter color vision
- Discriminating between color tones
- Naming colors
- Improving safety (e.g. traffic and brake lights)
- Increasing visual capacity for color vision tests
These lenses are not effective in patients whose color vision is disrupted later due to retinal or optic nerve disorders.
Therapeutic Contact Lenses
Therapeutic contact lenses are used to improve epithelial healing in the cornea, prevent epithelial erosion or control the pain felt in the corneal surface.
Prosthetic Contact Lenses
If one eye has a different color than the other, you can have your ideal eye color with prosthetic lenses. A soft lens can be tinted any color that you want in order to eliminate the difference between the eyes.