Whats’the consequence if contact lenses degree is small?

People's eyes can adjust adaptively within a certain range, so wearing contact lenses with inappropriate degree will make the degree rise rapidly. So, what kind of consequence will contact lens degree match be small? Will it affect the health of the eyes?

It's perfectly normal for the contact lens to have a lower degree than the frame glasses. Contact lenses are almost attached to the surface of the eyeball, so there will be a certain difference in degrees between contact lenses and frame lenses, which need to be converted. Most contact lenses are 25-50 degrees lower than those of frame glasses. You can't buy them directly according to the degrees of frame glasses.

As for the degree of contact lens itself, 25 or 50 degrees is generally a gear, and there will be no serious consequences if the degree difference is not much. In order to avoid the spasm of ciliary muscle regulation caused by overcorrection, resulting in visual fatigue, acid swelling, sleepiness and other symptoms, sometimes the optometrist will also slightly reduce some degrees according to the specific situation. It's not as clear as possible to match glasses. Reducing the degree is good for relieving eye fatigue.

但如果度数小到视物不清楚的程度，总需要用力眯眼睛看东西，就会加重眼睛负担、使眼压增高，长此以往，会导致视觉功能下降，度数加深，并引发各种不适。

But if the degree is too small to see clearly, it always needs to squint hard to see, which will increase the burden on the eyes and increase the intraocular pressure. In the long run, it will lead to the decline of visual function, deepen the degree, and cause various kinds of discomfort.

视力的矫正要求不宜过高，但也不能欠矫。在试戴的时候，就应该多看多动，认真感受有没有不适。如果有散光等个性化的问题，则应该到医院做好全面检查，最好“量眼定制”。佩戴隐形眼镜不利于角膜和结膜的保健，须注意用眼卫生，养成良好的生活习惯。

The requirement of eyesight correction should not be too high, but it should not be under corrected. When wearing them, we should watch and move more, and seriously feel if there is any discomfort. If there are some personalized problems such as astigmatism, we should go to the hospital to do a comprehensive inspection, and it is better to "customize eye measurement". Wearing contact lenses is not conducive to the health care of cornea and conjunctiva. It is necessary to pay attention to eye hygiene and develop good living habits.