Abstract. Our eyes are constantly exposed to negative factors: dust, dirt, decorative cosmetics, screens of smartphones, tablets, PCs. This often leads to deterioration of vision, the development of eye diseases. Even if you have no complaints the functioning of the visual apparatus, do not neglect routine examinations. So you can diagnose pathological changes at an early stage and start effective treatment on time. And if symptoms such as redness, dryness, photophobia, clouding appear, immediately make an appointment with an ophthalmologist, as these signs can pose a serious danger to your health.