LensShopper - Contact lens price comparison

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Are there different lens materials to choose from?

Here I will only talk about soft lens material since soft lenses are dominating the market today. There are a lot of materials to choose from since every manufacturer has their idea of how the best lens is made. To bring some order, FDA have categorized the materials in 5 categories.

I will now try to give you some pros and cons on these different materials. The siliconhydrogel lenses are so different from the hydrogels so I choose to compare the siliconhydrogel to the hydrogelmaterials 1-4 as one group, but the pros and cons given on each hydrogelmaterial is a comparison towards the other three hydrogelmaterials.

Siliconhydrogel

Pros

-Great oxygen transmissibility to the cornea.
-Good resistance against drying up in the eye.

Cons

-High stiffness in the material.
-Low surface wettability, noticeable is that the newest siliconhydrogels are better in this point of view.

Hydrogel lenses with high water content

pros

-Low stiffness in the material.
-Good visual acuity due to thick lens.

cons

-Easy to damage.
-More likely to attract debris.

Hydrogel lenses with low water content

pros

-Less likely to dry out in dry environments.
-Can be made thinner.

cons

-The materials have low oxygen-transmissibility.
-Hydrogellenses with ionic vs non ionic material.
-Ionic materials have larger water transmission through the lens.
-Ionic materials are more likely to attract protein debri.

So which lens should I choose? Well, there is no simple answer to that question, it depends on how you wish too use the lenses, your need of correction and the environment you spend time in.

Best prices - Monthly lenses

RSS Monthly contact lenses

  1. $30.85 Biofinity
  2. $34.56 Air Optix Aqua
  3. $51.99 Purevision 2
  4. $52.99 Air Optix Plus Hydra..
  5. $55.99 Biofinity Xr
  6. $59.99 Acuvue Vita
  7. $60.00 Bausch + Lomb Ultra
  8. $72.99 Purevision
  9. $89.99 Air Optix Colors

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