What are the effects of wearing contact lenses backwards?

If you find that the contact lenses are uncomfortable no matter how you wear them, and they are clear and blurry for a while, it is very likely that the lenses are worn backwards. So, if the contact lenses are worn backwards, what will be the impact on the eyes?

Whether it is a transparent film or a color film in contact lenses, it is necessary to distinguish the front and back. Since the edge of the reverse side of the lens is rougher than the edge of the front side, once the lens is worn backwards, the cornea will be constantly rubbed, causing symptoms such as tearing, dryness, redness, swelling, and congestion. In more serious cases, it may damage the corneal epithelial cells and cause ulcers. , inflammation, etc.


Generally speaking, the lens needs to be carefully observed at the fingertips before wearing. When the front side is facing up, the edge of the lens is very rounded arc, and when the reverse side is facing up, the edge of the lens will turn outward slightly. If you don't pay attention and wear the contact lens on the reverse side, there will be a gap between the lens and the eyeball, which will cause the problem of sliding and falling off when turning or blinking the eye. If you purchased colored contact lenses, the patterned color on them may also block the pupils.


In addition to wearing the front and back sides upside down, there are also cases where the left and right eyeglass lenses are reversed. Generally speaking, there is a certain difference in the power of the left and right eyes of a person. If there is a large difference in the degrees of the left and right eyes, once the left and right eyes are worn reversely, symptoms such as dizziness, headache, nausea, and blurred vision will occur due to inappropriate degrees. Not only does this have a negative impact on daily life, but it can also cause damage to the eyes.

In order to avoid unnecessary damage, when you wear contact lenses daily and find that they are worn reversely, you must immediately remove the lenses, clean them again, and then wear them.