For people who are looking for inexpensive and high-quality lenses. Quarterly replacement will make you do not have to remember their frequent purchase.
How to use it:
Quarterly, on a daily basis by quarter.
The material from which the lenses are made quarterly Zeiss Wöhlk Contact Day90 Plus, is resistant to the formation of protein deposits. This translates into greater comfort lenses. High water content provides optimal hydration, ensuring comfort lenses quarterly throughout the day.
Minimum expiry date.
24 months from date of purchase
The maximum time of wearing lenses, after which you need to replace them.
Lenses wear for a few dozen hours a day. Removing it while you sleep.
The same power.
-6,50D to -10,00D (0,50D step)
-0,25D to -6,00D (0,25D step)
+0,25D to +5,00D (0,25D step)
+5,50D to +8,00D (0,50D step)
|Base Curve (BC)|
|Oxygen permeability (Dk/t)|
It indicates the amount of oxygen which passes through the lens. The oxygen permeability is an key indicator of the lens material. It determines how much oxygen (which is necessary for proper performance) receives a cornea of our eyes. The higher the value, the better. Dk/t is common used and it states: the Dk per thickness of the lens. Usually for a lens at -3.00D, which makes it easier to compare different lenses brands. Ranges from 10-20 Dk/t to over 170 Dk/t.