Guangzhou Huangpu, Department of Ophthalmology and Optometry, CUHK: How to choose the right corneal shaping lens?

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How to choose the right corneal shaping lens?

Corneal shaping lens is a special kind of contact lens, which can correct myopia, astigmatism and other vision problems by changing the shape of the cornea. However, different people are suitable for different types of corneal plastic lenses. There are several aspects to consider before choosing a suitable corneal shaping lens.

1. Types of vision problems

First of all, we need to know our own types of vision problems. Corneal plastic lenses are mainly used to correct myopia, astigmatism and other problems. Different types of vision problems require different plastic lenses. Myopic patients generally choose chronic plastic lenses, while astigmatism patients may need to choose specially designed plastic lenses. Therefore, before choosing a corneal shaping lens, professional ophthalmic examination is required to determine the type of vision problems.

Next, choose an experienced ophthalmologist or optometrist, who can accurately determine the type of your vision problems in professional examinations and tests, so as to select the appropriate corneal shaping lens for you.

2. Eye shape

Everyone's eyeball shape is unique, and the corneal shaping lens needs to fit well with the eyeball to achieve the best visual correction effect. Therefore, it is very important to know the shape of your eyeball to choose a suitable corneal shaping lens.

Normal eyes have spherical and olive shapes, while the eyes of astigmatism patients may have irregular corneal shapes. Depending on the shape of the eyeball, different types of corneal shaping lenses can be selected. Some people's eyeballs are relatively flat, so they are suitable to choose flat corneal shaping lenses; However, some people have round eyeballs, which is suitable for spherical shaping mirrors.

Therefore, before choosing a corneal shaping lens, doctors or optometrists need to measure the shape of your eyeball in order to select the most suitable corneal shaping lens for you.

3. Wearing comfort

Corneal shaping glasses need to be worn for a long time, so comfort is one of the important factors to be considered when selecting suitable corneal shaping glasses. Comfort is related to the material, air permeability, and inverted light properties of the corneal shaping lens.

Different people have different tolerance to materials, and some people may have allergic reactions to certain materials. In addition, the permeability of the material directly affects the health of the cornea. Corneal plastic lenses with poor air permeability are prone to eye discomfort, surface dryness and other problems.

The pour light property is another factor that needs attention. Some low-quality shaping mirrors may cause problems such as halo and light sensitivity at night.

Therefore, when choosing a corneal shaping lens, it is necessary to choose a corneal shaping lens that is suitable for your own material and has good air permeability, and choose the appropriate pour light property according to your own needs.

4. Suggestions of ophthalmologist

Finally, choosing the right corneal shaping lens is a professional process, which requires the advice and guidance of an ophthalmologist or optometrist.

Before choosing a corneal shaping lens, it is recommended to consult with ophthalmologists, who will provide you with personalized advice according to your eye shape, types of vision problems, needs of daily life and other factors. They can choose a suitable corneal shaping lens for you according to your situation, and provide follow-up follow-up and adjustment.

In a word, selecting a suitable corneal plastic lens needs to consider many factors, including the type of vision problems, eye shape, comfort and suggestions from ophthalmologists. By comprehensively considering these factors, you can choose your own corneal shaping lens to obtain the best vision correction effect.