How To Choose The Most Suitable Contact Lenses Among Various Types

Back in 1508, Da Vinci proposed the idea of wearing lenses directly on the eyeball, but it was not realized until 1887, after a German scientist Adolf Eugen Fick’s research, successfully produced a glass contact lens.

In 1938, two scientists, Mullen and Obring, used PMMA as a material to develop the world’s first pair of plastic contact lenses. Although its hardness is much lower than that of glass contact lenses, it will still have a certain discomfort when worn on the eyeball. Twenty-three years later, in 1961, one of the many scientists, Otto Wichterle, a chemist from the Czech Republic, lived up to expectations and developed a soft contact lens. This kind of contact lens basically solves the shortcomings of all the imperfect products in the past, takes and wears on time every day basically does not cause discomfort to the eyes, and the soft material makes it perfectly fit the eyeball.

Contact lenses were constantly updated, and in the 1980s, colored contact lenses were also born,in China we call them “Contact lenses that beautify the pupils”.

At this point, the types of contact lenses officially expanded to two: colored and transparent.

In fact, with the development of contact lenses to today, has not only these two categories, according to the use cycle and material, contact lenses can be divided into many types.

The life cycle of contact lenses

Daily disposable

Disposable products, it does not need to soak, care, can save a lot of time and energy, suitable for travel. In addition, the water content of the cosmetic contact lenses is large, the texture is soft, and it is more comfortable to wear. Moreover, the day is thrown away after a day of use, there is no need for care, it will be more hygienic and healthy.

However, the formability of the day-cast contact lenses is poor, so it is not suitable for beginners to use, because it is more difficult to wear and easy to slip.

Monthly disposable

The use cycle is one month, which is a short-cycle product. The price of the contact lenses thrown by the month will be much cheaper than that of the day, and it is more suitable for some people who wear the contact lenses for a long time, and the contact lenses thrown by the month have moderate water content, and are easy to operate for novices.

Annual disposable

The use cycle is one year, generally speaking, from the date of unpacking, the cosmetic contacts can be used for one year, but if it is often used, it is recommended to replace it in about 8 to 10 months. It should be noted that the longer the wear time, the lower the water content. Contact lenses worn for a long time will produce a certain sense of friction, will make the eyes appear painful and dry, if you do not pay attention to hygiene will cause bacterial invasion.

Material of contact lenses

  1. Hydrogel: suitable for people with healthy eyes. It is the most common and common material, and its main material is P-HEMA, which is soft and comfortable to wear.
  2. Non-ionic: suitable for sensitive people, it is a new addition of NVP components on the basis of hydrogel. The softness and thinness of the lens are increased, and the precipitation of protein is significantly reduced.
  3. Silicon hydrogel: Suitable for people with dry eyes and astringent eyes, it adds silicon components to the base of hydrogel. The moisture retention and oxygen permeability of the lens are increased, the oxygen permeability is increased by 4-7 times, and the dryness and fatigue of the eyes are alleviated to a certain extent.
  4. MPC silicone hydrogel: suitable for all people. It collects MPC on the surface of silicon hydrogel to increase its hydrophilicity, which can alleviate the protein adsorption problem caused by ordinary silicon hydrogel.

To conclude,in the aspect of contact lens material,there is no conception of better or worse choice,instead,there is an issue of probability.Here is Hexiu,China’s advice:get to know your eyes,and so you can choose your ideal contact lenses.If you feel confused,welcome to consult.