Tips on How to Avoid Low Quality Contact Lens
Contact lenses should attach to our eye bowls. Therefore, we must learn tips on how to avoid low-quality contact lenses. You must know that expensive is not mean safe and high quality. You’d better choose the proper types of contact lenses and then take high quality into consideration. Let’s begin with choosing the right contact lens.
How to choose an appropriate contact lens?
Firstly, you should have knowledge of the types of contact lenses. There are five kinds of contact lenses. They are hard contact lenses (which are always made of PMMA)、 soft lenses 、RGP lenses (Rigid Gas Permeable lenses)、Hybrid contact lenses and Silicone hydrogel lenses. Feel confused about these names, right? Let me list their pros and cons to give you a brief impression of these lenses.
|
Types |
Pros |
Cons |
|
Hard contact lens |
l Excellent optics l Better choice for people with astigmatism |
l uncomfortable to wear l Take a long time to adopt |
|
Soft lens |
l Comfortable to wear l Can be worn for a long time. |
l Easily polluted in dusty environment. |
|
RGP lens
|
l Allow oxygen pass trough l More close to your eyes |
l uncomfortable to wear l Take a long time to adapt |
|
Hybrid lens |
l Another better choice for people with astigmatism |
l Expensive l Difficult to fit |
|
Silicone hydrogel lens |
l High oxygen permeability l Really popular |
l Thick l Uncomfortable for some people. |
What’s more? You should consider how long you would like to wear this contact lens. Thus, you can choose from daily wear or extend wear. In my opinion, daily wear may be cleaner and have less possibility of infection.
The last point was written for girls who want to change their appearance by wearing contact lenses. There is a kind of lens called a colored contact lens that can modify your appearance. For example, a blue contact lens can make your eye deep, just like the one in the picture. It is a product from ttdeye.
How to choose high-quality contact lenses?
When choosing a contact lens, you should check out these parameters.
Oxygen permeability: you must know that our eyes also need breath. If a contact lens with low oxygen permeability, your eyes might feel dry after you wear lens for several hours.
Water content: A lens with high water content will result in the dry eye after a long time of wearing. A high water content lens means it needs more water in other words, tears. The more tears absorbed by the lens, the more uncomfortable your eyes are.
Central thickness: If the central thickness is less than 0.04mm, it belongs to ultra-thin. The ideal thickness is 0.04 mm-0.06 mm and the normal one is range from 0.04mm to 0.09mm. What feeling can an ultra-thin lens bring to you? More comfortable wear experience when wearing it.
However, you can’t just choose a contact lens on your own after checking out these parameters. The condition of your eyes should also take into account. So, you can avoid low-quality contact lenses.