Nowadays, more and more people are wearing glasses with small frames. We can find that the glasses used by students to correct their vision are smaller than before. Though small glasses are light and beautiful, it also has shortcomings.

If the frame of your glasses is too small, it will do harm to your eyes. Various harmful light, such as ultraviolet radiation, will enter your eyes directly without streaming through lenses. As we all know, one of the main reason for the increasing number of cataract patients is that our eyes have suffered too much ultraviolet radiation for the damage of ozone layer.

Meanwhile, the range of the patients’ vision is limited because of the small frame of your glasses. Then the function of eye cannot get all-round and normal development because of the limited view.

Several years ago, people pursued big frame glasses blindly. The optical centre of the lenses moves outside, which is not in conformity with standard pupil distance. What’s more, big frame means increasing the weight of your glasses, which adds to the burden of your nose and ears.

There are many kinds of eyeglasses with different functions. Safety glasses or sunglasses have thin lenses, and they have no refraction. In this situation, we can choose large frames.

However, the function of the glasses used to correct vision is a little complicated. We cannot judge its quality simply by the size of its frame. Firstly, the basic purpose of wearing it is to recover one’s vision to the normal level.

Secondly, it can protect one’s eyes from being injured. Thirdly, it should be light so that you can feel comfortable when you are wearing it. In addition, we should consider the face shape. It may be related to the pupil distance or other factors that are quite important for you to correct your vision.

According to these functions, I think that we should consider the refraction, astigmatic axial, pupil distance, angular distance as well as other factors when we are choosing the frame of this kind of prescription glasses.

Under the correct direction of the optometrist as well as the above tips, I believe you can get a pair of suitable and beautiful glasses.