"OK lenses" is the common name for keratomileusis, which has become a popular way to control myopia in children in the past few decades. In addition to improving naked eye vision during the day, OK lenses can control the progression of myopia. After wearing OK lenses for a certain amount of time at night, you can see clearly during the day without relying on any glasses. However, this shaping is reversible compared to myopia surgery.
How do I get OK lenses? Can everyone be fitted?
First of all, ok lenses (keratoconus) are not available to everyone. The state requires that young people over the age of 8 years old can wear OK lenses. Of course, adults (preferably no older than 40 years old) can also wear them. And a series of examinations are required before wearing wear.
1, test refraction (general myopia requires less than 600 degrees, astigmatism less than 150 degrees, myopia astigmatism ratio greater than 2:1)
2, corneal curvature (39.00D--46.00D), intraocular pressure (10-21mmHg)
3, other eye condition examination: such as corneal topography, eye slit lamp examination, etc.
4. In addition to this, it is best to test the corneal endothelial cell count, eye axis length, tear film function and other related items.
What do I need to pay attention to when wearing OK lenses?
It is very important to note that keratomileusis belongs to Class III medical devices, which is a medical practice. You have to be in a medical institution, with a qualified doctor and related hardware configuration, before you can be fitted with OK lenses. Secondly, the use cycle of a pair of OK lenses has a deadline, generally a year to a year and a half, is to be replaced regularly. Depending on the brand/model, a pair is about 5,000-10,000 yuan, plus the cost of the care solution, so the overall cost is not expensive, but it is also internationally recognized for its delayed effect on myopia. Secondly, there are strict review requirements for wearing OK lenses, especially in the early stage of wearing lenses: review on the first day, review on the seventh day, review in one month, and review every three months afterwards, and follow up if there is any abnormality.
Can OK lenses cure myopia and remove glasses completely?
Improving naked eye vision and causing a temporary decrease in eye prescription is the first effect of OK lenses, but this effect is only temporary and reversible. To use an analogy, just like charging a cell phone, you wear your glasses and charge them every night, and then take them off and unplug them the next day so that the phone can be used normally. So OK lenses only temporarily reduce the prescription and improve naked eye vision, and do not permanently treat myopia, unlike myopia laser surgery. But it has another benefit, that is, it can control the development of myopia, compared with frame glasses, it can control about 50% of the growth of the eye axis.
Now clinically, OK lenses are more often used to control the development of myopia in adolescents and, of course, to improve the patient's naked eye vision. Therefore, these two groups of people are suitable for wearing OK lenses.
Is it true that OK lenses can lead to serious complications?
OK lenses are a special type of contact lens that comes in contact with the eye. So as long as there are some contraindications to wearing contact lenses, they should not be worn.
For example, some systemic diseases such as diabetes and hyperthyroidism, and some eye diseases such as inflammation of the conjunctiva, inflammation of the cornea, and glaucoma, are the same as contraindications for ordinary contact lenses and cannot be worn.
The wearer needs to go through strict screening, professional fitting, and proper daily care to remove and wear the lenses, as well as regular follow-up visits, so as to greatly reduce the chance of complications and achieve safe wearing.
How do I clean and maintain my OK lenses?
We are required to clean and disinfect the OK lenses with a care solution every day before wearing and after taking off the glasses, which is a daily requirement. Every two weeks, we also have to do a protein removal care to clean the lenses more deeply. Maintenance: remember not to pinch the lenses too hard when taking them off, because they are fragile and breakable, so they must be gentle, and they must also be checked regularly by a doctor with the help of a professional instrument to determine the cleanliness and integrity of the lenses, thus ensuring their safe wearing.
In addition, it is important to emphasize that OK lenses are not a safe deposit box, if you wear them, but still use your eyes excessively, a lot of close eyes, do not pay attention to eye hygiene and rest, the role of OK lenses to slow down the development of myopia will be greatly reduced. So the key is to use your eyes scientifically and take care of them.
