How to identify the front and back of contact lenses

Myopia has become a common problem among modern people, and many young people have myopia problems. People who love beauty don’t want to have “four eyes”, so contact lenses become a new choice for many people. The key to wearing contact lenses correctly is to accurately distinguish the front and back sides of the contact lenses. So how do you identify the front and back of contact lenses? What should you pay attention to when using contact lenses?

Method 1: Put the lens on your finger . If the edge is inward like a bowl, it is the front side. If it is spread out like a plate, it is the back side. Or when you take out the contact lens, do not crush the front and back sides. Put it directly into the care solution according to the shape you took out. Contact lens experts have found that when the lens is soaked in the care solution for a period of time, it will slowly curl up into the front side, and rarely the back side.

Method 2: Place the contact lens lightly on the index finger of your right hand , with the lowest point touching the fingertip, allowing the surrounding area to naturally curl up. If it is positive, then when viewed from the side, the lens is "U" shaped, with the top edge slightly buckled inward. Such a smooth curvature indicates that the contact lens is now placed frontally. If it is reversed, it will look like an upside-down straw hat from the side, that is, the top edge is turned outwards, like the brim of a straw hat. At this time, you need to put it back into the nutrient solution, turn it over, pick it up again, put it down, and put it on again.

Method three: Try it yourself . If you feel uncomfortable after wearing it, it means you are wearing it upside down. Here I would like to remind the majority of contact lens wearers that the first time wearing contact lenses should not exceed 8 hours. If you experience slight dryness, photophobia, temporary nearsightedness, foreign body sensation, magnified or reduced vision, as long as the symptoms are not serious and last for a short time, it is a normal psychological reaction. Generally, after a short period of adaptation, the symptoms will disappear naturally. When not wearing contact lenses, soak them in the companion box with care solution, etc.

Method 4: Put the lens in a double box filled with care solution, and use the lens clip to push the lens. The front side of the lens is in a suspended state and is easy to push, while the back side of the lens sinks to the bottom of the box and is difficult to push.