Monday 1 July 2019

Different types of contact lenses based on their material and design

Contact lenses are a great alternative for glasses and they are available in so many varieties to choose from. Before using them you must know some of the basics about contact lenses.

Different types of lenses based on contact lens material and their advantages:

You must consider wearing contact lenses in materials that best suits your needs.

Soft lenses

These lenses are made from gel-like, soft and flexible plastics known as hydrogels. They allow oxygen to pass through the eyes as they are very thin and easily adapt to the front surface of the eye.

Advantages:


  • These lenses have very short adaptation time.
  • They are available in tints and bifocals also.


Silicone hydrogen lenses

These lenses are made from an advanced type of soft material and are the most popular types of lenses. They allow more oxygen to pass through the lens and reach the front surface of the eyes.

Advantages:


  • These lenses have short adaptation time. 
  • These lenses offer increased level of comfort. 
  • They remain fresh and hydrated throughout the entire wearing cycle.  
  • They are great for active lifestyles and don’t need to be clean much.


Gas permeable lenses

These lenses are also known as the RGP and are made from slightly flexible plastics that allow the oxygen to pass through the eyes. They are rigid and maintain their shape on the eyes. These lenses are used to correct astigmatism and other refractive errors.

Advantages:


  • After the initial adaptation period, they are comfortable to wear and provide excellent vision.
  • They are easy to put on and have short adaptation time.
  • They correct most of the vision problems. 
  • They have relatively longer life.
  • They are also available for myopia control and corneal refractive therapy.


Different types of contact lens designs:

Spherical contact lenses

These lenses have the same lens power throughout the entire optical part of the lens. They are used to correct myopia and hyperopia.

Toric soft contact lenses

These lenses have different powers in different meridians of the lens. They are used to correct astigmatism and nearsightedness or farsightedness.

Multifocal contact lenses

These lenses have different power zones for near and far vision to correct presbyopia.

Cosmetic contact lenses

These are the colored contacts that can change your eye color completely or give a more intense look to your eyes. Theatrical, Halloween and other special-effect lenses such as cat eye, avatar contact lenses, vampire contact lenses and others all fall under this category. Even if you have perfect eye vision, you need a prescription to wear these contacts also.

You can buy any of these contact lenses in different designs and materials from a reputed online retailer like sclera-lenses. They are available in a wide range of models, designs and options. Their wide collection is created to suit everyone’s taste. They provide contact lenses only of those brands that are more comfortable and cheaper. The range of lenses they offer is constantly growing as they strive to provide you with the widest range possible to choose from. They have most of the contacts in stock and therefore will be sent to you no later than next working day.   

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