This kind of eye drop is used to protect eyes from dryness caused by air-conditioning, wind, sun, computer using and other medication. It could immediately relieve the symptom of dryness, no more itching, burning and strong foreign body sensation. Also some side effects are inevitable. If it is your first time to use it, it might cause temporary blurry vision. It might cause a very minor stinging feeling, but it is temporarily. It might cause severe allergies such as difficult breathing, dizziness and so on. If any of these symptoms tend to persist, then you need to communicate with your ophthalmologist about what you are going through. Let the doctor know what reaction your body gives, and he/she can leverage the benefits versus risks. Don't worry too much. At least for me, who is always using lubricant eye drops, I don't have severe trouble so far.
