Sunglasses | Catalogue
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Disposable contact lenses are lenses which are designed to be replaced on a regular basis, usually either daily, two-weekly or monthly. The more often a lens is replaced, the less the lens will become deposited with proteins and oils. Many of the problems that contact lens wearers experienced when contact lenses were replaced on an annual or two yearly basis are seldom seen nowadays. Disposable contact lenses are therefore a healthier alternative. Daily disposable contact lenses are a great option for people who only want to wear their contact lenses a few times per week, for example, for sport. They also remove the need for cleaning, since they are inserted in the morning (or before you play sport) and then thrown away afterward, offering exceptional convenience and good value for money. Lenses which are replaced two-weekly or monthly are good value if you want to wear lenses everyday. They work out to be cheaper than daily disposable over the period of two to four weeks, although you will need to clean them nightly.
Leave-in (extended wear) contact lenses
Leave-in (extended wear) contact lenses are designed to be worn continuously for 30 days and nights and then replaced with a new contact lens. They offer the ultimate in convenience, since they usually don’t need removing or mechanically cleaning. Other advantages include being able to see without struggling to find your glasses if you get up in the night, or not having to worry about removing lenses with dirty hands if you go camping. You also won’t need to remember to carry bottles of solutions around with you if you go out with friends and end up staying out the night!
Water content of the contact lens is an important parameter. Oxygen permeation critical for soft contact lenses, and a portion of the required cornea of oxygen coming through contact lenses. However, it should be remembered that some material with a high water content tend to lose a day more water than materials with low water content, which can hold to a reduction of oxygen. Hydrating moisture content can be offset drops.
A contact lens prescription differs from a spectacle prescription primarily by the addition of lens parameters. It should be noted that the power of a contact lens will not necessarily be the same as that of a spectacle prescription due to the optics of a lens being closer to the eye. The technical term is "effectivity" of the lens.
Sign of "plus" and "minus" is a very important parameter!
The other information that is often given with a contact lens prescription will be the diameter of the lenses, basecurve, possibly additional curves lens material, design or manufacturer name.
For example,
OD: 8.6/14.0/-1.00DS
OS: 8.6/14.0/-1.50DS
In everyday practice, if contact lenses feel "loose" and slide easily a smaller base curve may work better. A large base curve may be needed if they feel tight. Lenses with smaller base curves are referred to as "steep".
In this window you’ll need to indicate prescription information (optical power and base curve) and choose the number of packs you want to purchase.
Some people have different prescripted optical power for right and left eye, e.g. right -1.00, left -1.25. So we ask to choose optical power for each eye. The number of packs depends on this info because you have to buy separate pack with suitable optical power for each eye.
If both eyes need the same optical power and you want to buy only one pack, you may indicate the optical power only once and write "1" in the field "Quantity of packs". In this case second column contains "0".
Contact lenses with the same optical power are not produced specially for left and right eye. They are identical, and initially may be used for any eye.
Enter your Prescription and after that click "Add to cart".
