Are you planing to buy contact lenses online? Contact lenses are the small lenses made from the various polymers which are designed to be inserted into the eyes over the corneas for the purposes of correcting vision; its also possible to find the contacts which just change eye colors or novelty contacts for the costumes. There are numbers of different kinds of contact lenses on the markets, from classic hard PMMA lenses to the daily disposables. An optometrist can provide more advice about the kinds which might be right for you, depending on your needs and also the health of your eyes, but it can also help to have general ideas of your options before you shop for your contacts.
PMMA lenses were amongst the first contacts to be released on the markets. They’re not very comfortable, although they’re durable and they have long lives; most people who want longer lasting contacts prefer to use the rigid gas permeable lenses. These lenses strike balances between the soft contacts and the true hard contacts, lasting many years with appropriate use. Rigid gas permeables come with less risks of corneal irritation, since they usually allow plenty of oxygen to reach the eyes, and they yield crisper corrections.