Why is it that the colored contact lenses are uncomfortable to wear? How to distinguish the front and back of the colored contact lenses?

I don't know if I put the contact lenses on the wrong way. I always feel uncomfortable after wearing them. What's going on? How can I tell the front and back of contact lenses?

If you feel uncomfortable wearing cosmetic contact lenses, it means you have conjunctivitis, corneal damage or keratitis. It is recommended to stop wearing cosmetic contact lenses. Conjunctivitis is manifested by congestion of the eyelid conjunctiva. You can try levofloxacin eye drops.

The front and back of the contact lens are different colors. The front is darker and the back is lighter. For example, the back of a black contact lens should be gray-black. When taking out the contact lens, do not damage the front and back. Put it directly into the care solution in the shape it was taken out. It will slowly curl up to the front. Put the lens between your index finger and thumb and squeeze it. If it is the front, it will close inward and be more elastic; if it is the back, it will collapse outward and have no elasticity.

How to distinguish the front and back of the colored contact lenses

1. Place the contact lens gently on the index finger of your right hand, with the lowest point touching the finger, and let the surrounding area naturally rise. If it is positive, the lens is "U" shaped when viewed from the side, with the top edge slightly buckled inwards. This smooth arc means that the contact lens is now placed positively and can be worn directly.

2. If it is reversed, it will look like an inverted straw hat from the side, that is, the top edge is turned outward, 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. It is best not to turn it over directly between your fingers. Under normal circumstances, a normal lens viewed from the side (parallel to the line of sight) is a full bowl shape with a very smooth curvature. If the lens is reversed, it looks more like a plate from the side, the edge looks a bit like it is turned outward, and the overall curvature is not as large as when viewed from the front, and it feels a bit flat.

Question 1: Why do I experience tears, dry eyes, eye movement, eye irritation, and occasional blurring when wearing eyeglasses?

Solution: For first-time wearers, you need to adapt to the new environment, which takes anywhere from a week to a month. If you don’t take the time to adapt, you will feel something in your eyes even if you wear daily disposable lenses.

The first time you wear it, you must follow the rules: 2 hours on the first day, 4 hours on the second day, and 6 hours on the third day, and slowly adapt. If you encounter dry eyes, you can buy eye drops sold in optical shops and drop them a few times to lubricate the eyeballs, which will significantly improve comfort.

Question 2: If it is not the first time to wear it, and one of them is uncomfortable, how can I solve it? If both are uncomfortable, how can I solve it?

Solution: Take off the lens that is causing the discomfort and put it on the other eye that is not causing the discomfort to see if it is still uncomfortable. If it is not causing the discomfort, it means that the lens is not the problem. You may be wearing it the wrong way or there may be a problem with the curvature of the eyeball.

(The curvature of each person's left and right eyeballs is different, which may cause friction when moving up and down or left and right. People who are sensitive will feel uncomfortable. In fact, they can adapt after wearing it for a while.) If the uncomfortable one is still uncomfortable when it is worn in the comfortable eye, it means that there is a problem with the lens. Check carefully for damage and cracks, and whether the front and back are worn correctly? If you can't distinguish the front and back, go to Baidu to search and you will learn. Wearing it wrong is very irritating to the eyes.

Question 3: Does it matter if my eyes become red after wearing colored contacts?

Solution: Red eyes are caused by congestion of the bulbar conjunctiva, not corneal bleeding. First, we need to understand why the eyes are red. Maybe you have been wearing transparent lenses before and are used to the high oxygen permeability of transparent lenses. Colored lenses are definitely not as permeable as transparent lenses because they have pigments. Therefore, red eyes will occur when you are used to wearing them or when you are just starting to wear them. If it is normal within 1 to 4 days, you must stop wearing them after 7 days, otherwise the cornea will be deprived of oxygen and new blood vessels will appear. This has nothing to do with the lenses. Some people wear transparent lenses for a long time, such as staying up late or wearing them overnight, which will cause this kind of problem, so remember not to wear them overnight.

Question 4: What should I do if I keep crying?

Solution: Check if it is worn upside down or damaged. There should be no other problems. Generally check if there are any tiny gaps. Generally, only very sensitive people will tear up when wearing it.