Gone are the bad old days when a person had to wear glasses to correct their eye sight and look geeky. Contact lenses have taken over the market and are becoming very popular across all genders and age groups. Contact lenses are the best option for correcting vision. Unlike glasses, contact lenses are more comfortable and invisible to anyone. You have a wide range of choices when it comes to the production and colour of your contact lenses. You can choose between tinted or non-tinted lenses, depending on the lens power you have. It is also important to check whether disposable or non-disposable lenses are comfortable.

Types of contact lenses according to material

• Soft lenses: these lenses are soft and gel-like; they are made of plastic containing water, and these plastics are called hydrogels. These lenses are very thin and very comfortable to wear.
• Silicone hydrogel lenses: they are made of an advanced soft gel material that allows more oxygen to pass through. They are one of the most powerful types of lenses because they keep the eyes healthy. For this reason, these lenses are very popular. However, they have a very short life span.
• Gas permeable lenses. These lenses are also known as GP or RGP lenses. Unlike the two types of lenses mentioned above, they are rigid contact lenses. They have a smaller diameter and are made of a highly oxygen permeable material. These lenses can be used for a longer period of time than soft lenses. These lenses can last for about several years and they can also transmit oxygen to a large extent. They provide clear vision and your cornea stays safe while you wear these lenses.
• Hybrid contact lenses: they are also rigid lenses, they also have rigid gas permeable central areas. These gas centres are surrounded by a hydrogel or silicone hydrogel material. You could call them a mixture of soft gas permeable lenses because of their comfort and structure.
• MMA lenses: they are made of plastic, but they are rigid contact lenses that look like GP lenses. These lenses were replaced by gas lenses and are no longer used.

Types of contact lenses, depending on wear time

• When worn, you will be provided with two types of contact lenses, which are

Long-term wear contact lenses: these lenses can be worn even when sleeping, but they come with an expiry date. These lenses are also known as continuous wear, as they are worn 24 hours a day. They are usually required to be replaced every 30 days.

Type of contact lenses according to expiry date

All lenses have an expiry date and in order to avoid any type of infection you must adhere to it strictly and replace them when needed.

Soft gel lenses must be replaced frequently Here are some soft lenses according to their expiry date.

• Daily disposable lenses: these lenses are replaced daily after daily use.
• Disposable lenses: these lenses must be replaced every 15 days.
• Frequent lens replacement: these lenses will be replaced monthly or every three months.
• Conventional lenses: these lenses are replaced every 6 months.

These are some of the different types of contact lenses based on different categories. You can choose the one that fits your budget and works for your eyes. It is important to find out what your initial comfort level is with your lenses. In addition, the regular maintenance procedures for disposable and non-disposable lenses are very different, so you will need to choose accordingly. You can also connect to an online fashion shop to get the required return.