Shade Basic; The process of lens tinting, aside from its aesthetic values, also serves to filter lights for added visual comfort. Lens tinting can be done both as a uniform coating of a single shade or as a graded coating from light to dark. There is also a wide variety of colors to choose from. However, there may some adverse effect on the sight. It may be good for some condition and bad for the others. An example is the very dark tint which is good for protection against bright sunlight, but not recommended to for or driving or traveling at night as it may cause accidents.

Shade Trivex; Plastic Tinted lenses with the refractive index of 1.53 produced from the monomer material under the trademark “Trivex®”. They possess higher impact resistance compared to other regular plastic lenses. Their three special properties are clarity, durability and light weight. Therefore, Excelite® Trivex® lenses are recommended for children and for those who need the strength of the lenses.

Shade Polarview is produced by incorporating polarizing film into the lens, as ordinary lens cannot filter out the light intensity while tinted lens cannot remove the reflected sunlight. The special property of this type of lens is the ability to filter out glare and the horizontal reflection of sunlight which is dangerous to the eyes. In effect, polarized lenses can realign the spectrum of light while also protect against UV ray up to 100 percent. At present, basic single vision lenses and progressive lenses, with three colors to choose from – gray, brown and green.