Carl Zeiss Contact Day 1 are daily soft contact lenses. They are intended for single use and, therefore, do not require cleaning and maintenance. You insert them in the morning and throw them away in the evening. The lenses are designed for everyday, but also casual wear (nightlife, recreation, sport, etc.)
Minimum expiry date.
18 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 -9,00D (0,50D step)
-0,25D to -6,00D (0,25D step)
+0,25D to +4,00D (0,25D step)
+4.50D to +6.50D (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.