how to distinguish the front and back of the contact lenses? Because the contact lenses are thin and transparent, many friends who wear them for the first time can't distinguish the front and back of the contact lenses, so it's easy to wear them in the opposite direction. How do you know how to distinguish the front and back of the contact lenses? How to wear the contact lenses correctly?
1. How to distinguish the front and back of contact lenses
1.1 wash your hands and see if the lenses are clean or broken before wearing.
1.2 put the lens on the finger or stick and start to distinguish the front and the back.
1.3 front of contact lens: the front of the lens has a large arc, and its edge bends inward, such as the shape of a bowl.
1.4. On the opposite side of the contact lens, the curvature of the lens is relatively small, and the edge is a little like downward bending.
1.5 compare the two sides, and the pros and cons can be distinguished. And tell you that if you wear contact lenses in reverse, you should not take them in. Even if you wear your eyes, it will be very painful. At this time, you are wearing them wrong, and vice versa.
How to wear contact lenses
2.1 clean your hands and confirm whether the lenses are abnormal before wearing them. In particular, it is necessary to confirm the front and back of the lens to see if it is reversed. If it is reversed, there will be a serious sense of foreign matter in it.
2.2 take out the lens and put it in the palm of your hand, sprinkle the fresh care solution on the lens, and gently soften it with your hand.
2.3 put the contact lens on the tip of the index finger of the right hand, look at the front of the lens and gently open the upper eyelid with the middle finger of the left hand, and then gently open the lower eyelid with the middle finger of the right hand. At this time, the eyes are very exposed. At this time, gently stick the lens in the middle of the eyes. When the lens touches the eye, let go of the handle while looking down, so that the lens can be in place correctly.
2.4 when wearing, after the eyelids are opened, the eyes will stare straight at the middle of the glasses, then the fingers will slowly approach the eyeballs, put them in, blink a few times to correct the position of the eyes, do not worry, the more anxious, the eyes are easy to blink, you can also use the rubber tweezers belt, wear and remove the fingers without touching the glasses, which will be more hygienic.
2.5. If you blink when you touch it, it's the same when you wear it at the beginning. You can dip the contact lens with more care fluid, so that the eyeball won't be so uncomfortable when you touch it. When you touch the eyeball, it feels slippery and easy to wear.
How to clean contact lenses
3.1 before cleaning and disinfecting contact lenses, wash your hands with soap flowing water, and pay attention not to leave long nails, so as to avoid bacteria pollution on the hands and scratches on the lenses caused by nails.
3.2 clean the lens before disinfection. The correct method is: place the inner arc of the lens upward in the palm, drop a few drops of cleaning solution or nursing solution on the lens, and gently rub the abdomen of the index finger from the center to the four sides for at least 20 seconds (about 90% bacteria can be removed).
3.3 wash the cleaned lens with sterile saline, put it in the lens box for more than 4-6 hours, and then wash it with sterile saline to remove the residual solution before wearing. If it is not used, the lens shall be soaked in the preservation solution for preservation.