1, contact lenses are more cost-effective
From the price point of view, the annual throw is cheaper than the half-yearly throw. Theoretically speaking, the annual throw refers to the contact lenses have a year of use, and half a year to throw the six months have to replace the new one, a year down, the annual throw price is naturally cheaper than half a year to throw some.
2, contact lenses half a year more healthy
From the health point of view, half a year to throw than the annual throw good. The longer the contact lens is used, the worse its oxygen permeability will become, coupled with a long period of use, wear and tear caused by the process of wearing and protein precipitation will be the more, and half a year to throw the contact lenses is the traditional type of contact lens wear, but also more in line with the medical eye vision check cycle, so half a year to throw the healthier.
3. How long can you wear annual disposable contact lenses
Annual disposable contact lenses should not be worn for more than 10 months. The water content of contact lenses is usually not high, but you need to use care solution for maintenance, which can be used to remove deposits on the lens, but the longer the wear time, the more deposits on the lens, and there is no way to completely remove the substances adhering to the lens matrix, wearing glasses for a long time is prone to double-sided allergies, inflammation and other problems, so the wear time of the annual contact lenses is best to control the time of the 8-10 months or so, the best contact lenses. The best time to wear contact lenses is around 8-10 months.
4, half a year to throw how long can wear
Theoretically, half a year to throw can be replaced every six months, but from a health point of view, half a year to throw contact lenses in the wear after five months is best to replace. This is because contact lenses are in direct contact with the cornea of the eye, related to the health of the eye, half a year throw contact lenses day to day wear, cumulative nearly half a year of time, the lens is easy to precipitate tear secretion of protein substances and other fungi, so wear 5 months after the contact lenses will be discarded health will be more guaranteed.
5, can drop eye drops
Wearing contacts is best not to drop eye drops.
Eye drops are not the same as nursing solution and eye lotion, according to its different components, the efficacy is not the same, ordinary eye drops into the eye, it is likely to lead to precipitates on the pupil lens, thus causing eye discomfort, if you really want to drop eye drops, it is recommended that it is best to remove the pupil first.