Contact lenses are medical devices, not ordinary goods. They must be fitted in a medically qualified place, and there are very strict standards and procedures.However, the current market on this aspect of management is not strict, consumers do not pay enough attention to, so that leads to the situation of non-standard glasses is very common.So, today I will give you a popular contact lens matching process.
Before the contact lens examination, you should go to a normal eye hospital or eyeglasses shop for examination: First of all, professional personnel with glasses to understand the wearer's eye health, whether there are contact lens contraindications, but also to ask the wearer's wearing needs and habits.Afterwards, the cornea, conjunctiva and fundus of the wearer were examined by the slit lamp to further exclude ocular diseases and measure corneal curvature.Eventually, the optometrist will give reasonable advice on the degree of eye use.
And when choosing a contact lens, it involves the conversion of degrees.Because contact lens is closer to eyeball, can be compared commonly frame glasses degree is slightly lower, 10 million cannot buy contact lens directly according to measure degree.If purchased in a physical store, try them on under the guidance of a shop assistant and learn the correct way to remove them and care for them.
In general, contact lens wearers are mostly refractive patients, and some of them may find it inconvenient to wear glasses before turning to contact lenses.However, if you buy and use inappropriate contact lenses, not only does not play a corrective role, but also may cause increased degree, and even cause a variety of complications.Accordingly, to protect double eye, must science matches lens, must not blindly follow suit to buy.