Optical glasses can alleviate visual fatigue to a certain extent, the following is a specific analysis from the perspective of different types of optical glasses:
Corrective optical glasses
Principle: For people with myopia, farsightedness, astigmatism and other refractive errors, wearing the right degree of optical glasses can help the eyes to clearly image, so that the eyes can see the object without over-adjustment. For example, myopia patients wear a concave lens, which can make the light diverge and then focus on the retina, far-sighted patients wear a convex lens, which can make the light focus on the retina in advance, and astigmatism patients wear a column mirror to correct the difference in refractive power in different meridian directions.
Effect: When the eyes can see things clearly, it will reduce the adjustment tension and fatigue caused by blurred vision. For example, if a nearsighted person does not wear glasses, the eyes will constantly adjust when looking at the distance to try to see, which will lead to eye fatigue symptoms such as eye pain and dryness for a long time, and after wearing suitable myopia glasses, this adjustment burden will be reduced, thereby relieving eye fatigue.
Anti-fatigue optical glasses
How it works: These glasses often use special optical designs, such as progressive multifocus lenses, which have multiple different diopter regions on the same lens, with the upper part for looking far away and the lower part for looking near, and a transition region in the middle. The aim is to reduce the degree of adjustment of the eyes when looking close, so that the eyes can switch focus more easily when looking near and far. Some anti-fatigue glasses will optimize light propagation by adjusting the refractive index of the lens, Abbe number and other parameters to reduce the burden on the eyes.
Effect: For people who use their eyes in close proximity for a long time, such as office workers, students, etc., anti-fatigue glasses can alleviate the symptoms of eye fatigue such as eye distension and pain caused by looking at the close for a long time to a certain extent. The wearer will feel more natural and smooth when switching between looking close and looking far, reducing eye adjustment fatigue.
Optical glasses with special functions
Principle: Anti-blue glasses can filter out part of the blue light that is harmful to the eyes, reduce the stimulation of blue light on the retina, thereby reducing the fatigue of the eyes. Because long-term exposure to blue light, especially from the screen of electronic devices, will make the ciliary muscle of the eye in a state of tension, easy to cause visual fatigue. Polarized glasses are mainly used to reduce glare, such as driving or outdoor activities, can effectively filter out the road, water and other reflected strong light, so that the vision is more clear and comfortable, reduce the fatigue caused by strong light stimulation of the eyes.
Effect: In the case of frequent use of electronic devices or strong light environment, wearing this kind of optical glasses with special functions can significantly reduce eye discomfort. For example, after a few hours of looking at a computer screen with blue-blocking glasses, your eyes will feel less dry and tired than if you didn’t wear glasses. Wearing polarized glasses outdoors in strong sunlight can make the eyes see things more easily and reduce the uncomfortable reactions caused by strong light such as squinting.
However, the effectiveness of optical glasses in alleviating eye fatigue will vary depending on individual differences, eye habits and the quality of the glasses. At the same time, even if you wear glasses that can alleviate eye fatigue, you also need to pay attention to reasonable eye use, avoid long-term continuous eye use, maintain the correct eye posture, etc., in order to better protect the eyes and reduce the occurrence of eye fatigue.
Post time: Mar-06-2025