- How many millilitres the pack of contact lens solution contains.
- How many millilitres the lens container contains.
- How often you replace lens solution.
A while ago, a customer was trying to describe our mascot Tikki with something in line with “That…creature, or what it is”. In fact, Tikki is a tarsier. In this blog post, you will learn more about tarsiers and how Tikki the tarsier ended up being a mascot for Visiondirect.co.uk.
Tarsiers are an endangered species that today are found exclusively in Southeast Asia. The tarsier, which is a type of monkey, has a head and body which together makes 10-15 cm with additional limbs about twice that and a tail 20-25 cm long. The tarsier is a carnivore primate that primarily eats insects, but also the occasional bird, snake, lizard or bat.
Originally, we used the Tikki for an advert on the London underground because it was attention grabbing, the large eyes also play along with theme of an eye related service and the surprised look was a good expression for our astonishingly low prices. Tikki was originally intended for use only on the advert, but because of its’ success, it increasingly became part of the brand image. Tarsiers are sweet creatures, but also endangered. Some efforts are done to preserve tarsiers in the wild, for example the Linan and Tupi project. The project is located in The Phillipines and involves ESI, where also rain forest and local culture is part of the preserving efforts. To support tarsiers and help to ensure they stick in there, you can donate to ESI here, or adopt a tarsier at WWF.
At VisionDirect.co.uk you will see more of Tikki, in fact soon we hope to have a Tikki page dedicated to comparing prices per lens across our categories of contact lenses. Often customers ask what the cheapest daily disposable is (Aura by the way…) or monthly coloured lens (ColorMaker for those interested). We think Tikki can be more than just our mascot and help you with, for example, price comparisons!
As we previously mentioned, we are giving away Ray-Ban sunglasses based on how many gold medals Team GB scores in the Olympics (London 2012). So far, we are happy to announce that 2 pairs of Ray-Bans will be in the draw. Bradley Wiggins took home a gold in cycling while Heather Stanning and Helen Glover won a gold medal in rowing.
Eye allergy is a very common problem for people who wear contact lenses. Allergy is an auto-immune response of the body. This response is characterized by the production of histamine, identified by symptoms such as redness or inflammation in the eye or eyelid.
There are various causes for allergy related to contact lens users:
In this article we will focus on the most common cause ; contact lenses cleaning solution. We will discuss deposit and contact lenses in other articles.
1) What are contact lens solutions?
We can split contact lens solution in two categories; all-in-one solution and peroxide solution.
Less and less popular amongst contact lenses wearers is peroxide solution; based on water, mixed with hydrogenated disinfecting agents and other substances. Peroxide solution is very powerful against germs. The lenses must be immersed in the solution for several hours to be decontaminated and the cleaning process is complex. The main problem of peroxide solutions is although it is effective, it is also very strong! After immersion of lenses in the oxidizer, it is mandatory to rinse to neutralize the patented product residue. Too many undisciplined lens wearers have had bitter experiences in this area causing stinging and burning. This problem has resulted in increased popularity of the multifunctional solutions.
The all-in-one solution offers everything in one bottle where decontaminant agents are used to clean the contact lenses. When you put the lenses in their box with solution for the night, it is this agent who will remove all the germs. Surfact agent has some lubricating and moisturizing properties. It is easier and more comfortable to put your lenses on the eye thanks to this agent. The buffering agent allows the contact lenses to be more comfortable during the day, and the chelating agent prevents the formation of protein deposit.
2) Allergy and the preservative
All these chemical agents are sterile over months or years. That is why laboratories are using preservatives. With them, you can use your all-in-one solution for a longer time period, and sometimes it helps the decontamination agent to be even more effective. But unfortunately, they are also cause of certain allergy.
The most common preservative are PHMB (polyhexamethylene biguanide) and the Polyquad. They are both very effective, but their composition itself is too strong for certain people.
It can be difficult to recognize an allergic reaction in other symptoms. Allergy can take different forms; eye dryness, conjunctivitis, inflammation, tears production constantly. There are some simple recommendations to avoid these problems.
3) Advise to avoid allergy
And do not forget that there are some important rules to follow in order to prevent contact lens allergy in general: