Looking for too long can cause harm to the eyes and lead to visual fatigue. A microscope is a near vision state, and since the microscope needs the refraction of light to see the objects under the lens, it also requires sufficient light, otherwise it is easy to cause visual fatigue. In addition, due to the high degree of mental concentration, the number of blinks will decrease, so looking at the lens for a long time will also lead to dry eyes.

Farsightedness, myopia, astigmatism, and presbyopia require a lot of adjustment for near and far vision, which will cause the eyes to become overfatigued. If you cannot rest while looking at a microscope, it is easy to exacerbate the original refractive error. When myopia is not fully corrected, the near vision examination is easy to cause visual fatigue. Moreover, astigmatism imaging cannot be combined at a certain point, so it needs to use the adjustment effect of the ciliary muscle inside the eye to change the focus continuously, over-adjust, and if you look at the microscope for a long time, the ciliary muscle will sustain a rigid contraction, resulting in ciliary muscle fatigue. Therefore, patients with visual fatigue will have symptoms such as orbital pain.

Ophthalmic optic nerve diseases are common diseases, mainly manifested as dry eyes, eye itching, eye soreness, blurred vision, and even vision decline. These diseases will have a direct impact on work and life. In daily life, attention should be paid to eye hygiene, avoid long-term eye use, and eat more foods rich in vitamin A, such as carrots, pork liver, and goji berries.