Eye drops are commonly used in ophthalmology and have the advantage of being fast acting and easy to use. Eye drops for relieving fatigue and treating dry eyes are an essential part of life for many workers who use their eyes intensely. However, eye drops themselves also have various properties, and their random use may lead to various adverse consequences. Today, we will take you to sort out the principle of using eye drops. Should I use them regularly? If you can not use it, do not use it! As the old Chinese saying goes: medicine is three times poisonous. The name of eye drops clearly mentions that they are also a kind of “medicine”. Therefore, when you can take other methods to relieve eye fatigue, you should try to avoid the use of eye drops, especially to avoid frequent use. Common methods to relieve fatigue include looking away, eye exercises, and resting with eyes closed. In addition, supplemental vitamin A, vitamin B2, vitamin C, etc. can help relieve eye pressure. Buy a bottle for long-term use Check the shelf life! Although medicines do not have the perishable properties of meat and vegetables, they do have their own shelf life. Eye drops can generally be stored in a sealed, cool place for 1 to 2 years before they are opened. However, it is generally recommended that they be used within one month after opening, beyond which they may lose their efficacy (for specific use, consult the instructions for use) or induce infections because of contamination of the eyedrops themselves. When using, should also pay attention to, as far as possible to avoid direct contact with the mouth of the bottle to the eyes, also do not touch any external objects. Otherwise, the side effects caused by eye drops will seriously jeopardize eye health. Just buy a bottle and use it to analyze the specific problem! Eye drops on the market can be roughly divided into two major types of health care and medicinal type, medicinal type is divided into antibiotic, antiviral, hormone, anti-allergic, etc., can be described as complex. When shopping, it is important to pay attention to their efficacy and use. Wrong shopping is like taking medication indiscriminately, and you will lose more than you gain in the event of a problem. It is generally recommended that when purchasing eye drops, you visit a major hospital or pharmacy and ask your doctor or pharmacist for advice before deciding to buy. What are the no adverse effects of eye drops? There are many kinds! Prolonged use of eye drops may lead to various adverse reactions. Most of the eye drops available at this stage have some amount of preservative added to them. This preservative may burn the conjunctival cup cells in the eye. Once it is destroyed, people will suffer from what is commonly known as “dry eye”, that is, the normal eye redness, dryness, pain, so that the more the use of eye drops, the more eye pain, forming a vicious circle. In addition, eye drops may contain hormones, beta-blockers and other medicinal ingredients. The presence of hormones may lead to the formation of hormonal glaucoma. Beta-blockers, on the other hand, are medicinal ingredients used in the treatment of heart disease, and exposure to such eye drops may lead to cardiac arrhythmias, asthma and other diseases in people who are allergic to such medicines. In short, although eye drops are small, there is a lot to learn. Readers and friends must consult an ophthalmologist when choosing eye drops, and buy with caution.