Without enough oxygen, you might feel symptoms such as end-of day discomfort, irritation, ... more
dryness, and redness. Also known as Corneal Oxygen Deficiency. In the long run, lack of oxygen may even cause complications. People who wear their contacts longer...
Advantages: Value for money if used wisely Disadvantages: If not rinsed well or left in too long can cause discomfort
Being a short-sighted Myopia sufferer contactlenses seemed like an obvious alternative to spectacles what with constantly losing or breaking them. Contactlenses eradicated this problem! Focus monthly's were the first brand of lenses I ever tried?not too expensive so as a student I could comfortably afford them. I must admit these lenses were quite comfortable?at first but due to the necessity of having to re-use and re-use them they had a tendency to fray round the edges, dry out and slightly deteriorate. If they hadn't been sterilised properly overnight and stored in the correct solution this felt on occasions like putting grit into your eye the following morning.
Focus monthly's are a product of Ciba Vision and retail at most opticians for about ten pounds a month (can be purchased in three month batches if more appropriate ...
These lenses have been designed to allow the continuios wear during the daytime and the night time for up to 30 days. With normal day to day contactlenses you are not suppose to keep them in during the evening time as there is not enough oxygen that would be getting transmitted to the eye.
As a result of these contactlenses which are made from Lotrafilcon A, they are up to 6 times more oxygen that can be transmitted to the eye whilst wearing theses lenses, the wearing of these lenses will vary for individual patitents but can only be warn if perscribed to by the opticians and follow their instructions correctly. every month air optix night and day lenses are designed to be replaced.
you get 3 pairs of lenses per box and they are not very expensive but depending on how you find the lenses is whether they were worth the money or not ...
Advantages: Very comfortable and easy to use Disadvantages: Not the cheapest on the market
I've been wearing contactlenses for about 7 years. I was nervous at first, especially as there are eye problems in my family. I didn't want to do anything that might be detrimental to my eyesight or cause problems down the line. Also my job at the time meant that I was out of the house for 12 hours at a time, I wanted lenses I could leave in for this length of time without worrying that my eyes would dry. For these reason I didn't go for the cheapest option but instead took advice from my optician and chose Acuvue Advance.
These lenses are licensed for continuous wear, so in theory they could be left in the eye for the full 2 weeks before needing to be changed. My optician explained that this is because they allow a lot of oxygen to the back of the eye, so the lense does not need to be removed to allow the eye to 'breath'. However ...
