Contact lenses aren't all the same. There can be a huge difference in quality between one company's product and another's. What exactly makes a good contact lens? Let's look at the tiny details.
Oxygen Permeability
The eyes need oxygen. This is why eye care providers tell customers that they must only wear their lenses 10 hours a day at most. This is also why contacts have to be thrown away so quickly. Without proper oxygen to the eyes, they become irritated and can develop bacterial infections. In the long run, lack of oxygen can permanently damage the eyes.
The newest thing in contact lens manufacturing is silicon hydro gel. This material offers six times as much oxygen permeability, making them safer and more durable. Silicon hydro gel and other new materials such as senofilcon produce lenses that can be worn almost as many hours as the wearer is awake. They can produce disposable ones that last for up to a month.
The eyes need oxygen. This is why eye care providers tell customers that they must only wear their lenses 10 hours a day at most. This is also why contacts have to be thrown away so quickly. Without proper oxygen to the eyes, they become irritated and can develop bacterial infections. In the long run, lack of oxygen can permanently damage the eyes.
The newest thing in contact lens manufacturing is silicon hydro gel. This material offers six times as much oxygen permeability, making them safer and more durable. Silicon hydro gel and other new materials such as senofilcon produce lenses that can be worn almost as many hours as the wearer is awake. They can produce disposable ones that last for up to a month.
