Despite contact lenses to correct visual impairment being available for many years, constant developments have given wearers an ever widening choice that includes ease of use, convenience, sight correction and cosmetic enhancement.
If you are considering contact lenses or even if you are an existing user it is worth getting up to date knowledge of the variety of lenses available before visiting your Ophthalmologist, Optometrist or Optician.
When your ‘eye practitioner’ realizes that you have taken the trouble to find out about the variety of contact lenses and their benefits he is more likely to advise you in greater detail about the choices and their suitability for your needs.
You should always bear in mind that contacts are medical devices that require specialist fitting and aftercare. Only suitably qualified eyesight consultants should prescribe contact lenses so if in any doubt check out the qualifications.
Most people with the types of visual impairment that can be corrected by contact lenses will have very few, if any, wearing problems providing that they are measured and fitted correctly.
Contact lensescan be prescribed for
All contact lenses are available in a variety of colors whether they are used for vision correction or simply to cosmetically enhance eye color.
Sadly in rare cases the shape of the eye or other considerations can cause problems and consequently contact lenses will not be an option.
Types of Contact Lenses
Traditional Reusable Lenses
This type has an extended life for six months or longer before needing to be replaced.
Prescriptions for these lenses and all others will depend on the physical measurements of the eyes and the requirement to correct the visual impairment.
It is an important consideration to bear in mind that the more frequently you replace your lenses the healthier and more comfortable your eyes will feel.
Substances occurring in tears, such as protein and calcium will build up on the surfaces of lenses and must be cleaned after each days wear.
If not carefully cleaned and kept in a sterilized container the eyes will become more prone to infection and the lenses will also become gradually more uncomfortable to wear.
There are a variety of excellent proprietary lens cleaning and storage solutions available at pharmacies.
Contact lenses can also be used to change eye shape such as bulging.
Obtainable for up to two weeks wear before being discarded and replaced with fresh lenses.
Now the most popular type of contact lens and recommended by eye care practitioners as the healthiest lens option.
Daily disposables have now become an affordable option, will never need cleaning or after care so no build up of deposits are likely to occur that lead to eye infections.
However disposable lenses can be cleaned and there are some excellent products available but disposables can save you the time, effort and expense of doing this and the health risks are lessened.
Gas Permeable Extended Wear Contact Lenses
As these lenses allow more oxygen to reach the eyes they may be worn continuously for up to thirty days without removal including overnight wear to extend their usage time.
The most convenient of all contact lens types. Should be disposed of after use. Watch out, as there are still some brands that only allow for seven days continuous wear although they are becoming less available.
Frequent Replacement Contact Lenses
These lenses should be replaced monthly or quarterly and are not suitable for overnight wear.
A well qualified vision practitioner should recommend the most suitable and comfortable type of contact lens to suit the shape of the eye and the wearer’s needs without obligation or charge.
Today, with the incredible advance in modern science, it is possible to have a clear lens replacement that is able to actually restore almost perfect, if not perfect vision.