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Types of Contact Lenses at Doctor & Associates in Connecticut Westport Norwalk Wilton Fairfield County

There are two major categories of contact lenses: Soft Contact Lenses and Rigid Gas Permeable (RGP) Contact Lenses. Regardless of the type of contacts that you are interested in, you require a thorough examination and fitting-and a valid prescription. Within these two major categories are a number of types of lenses for solving different vision problems.

These include:

Soft Daily Wear Contact Lenses

Soft Daily Wear Contact Lenses are made of soft water containing, flexible plastics, called “hydrogels”, that allow oxygen to pass to the cornea to maintain its health and clarity. Because they are soft, thin and flexible, Soft Contact Lenses are easier to adapt to and more comfortable than Rigid Gas Permeable (RGP) Contact Lenses. A newer type of Soft Contact Lens is made of a “silicone hydrogel” material that allows an even greater amount of oxygen to reach the cornea than any previous soft contact lens, adding additional safety. Soft Daily Wear Contact Lenses require careful cleaning and disinfection, as they tend to attract deposits of protein from your tear film.

Rigid Gas Permeable (RGP) Contact Lenses

Rigid Gas Permeable Contact Lenses (RGPs) are more durable and resistant to deposit buildup, and generally give clearer, crisper vision. They tend to be less expensive over the life of the lens since they last longer than soft contact lenses. They are easier to handle and less likely to tear. However, they are not as comfortable as soft contacts and it may take several weeks of adaptation in order to get used to wearing RGPs as compared to only a few days for soft contacts.

Contact Lenses for Astigmatism

People who have astigmatism usually have an unequal curvature of their cornea so that it is shaped more like a football than a basketball. Contact Lenses that correct astigmatism are called “toric” lenses. Toric lenses are readily available in both soft contacts and rigid gas permeable contact lens prescriptions. Toric contact lenses require a greater degree of fitting expertise in order to obtain the most precise vision.

Extended Wear Contact Lenses

There are a number of Extended Wear Contact Lenses that are available and FDA approved to be worn overnight, 1 week, or even up to 30 days. Most Extended Wear Contact Lenses are Soft Contact Lenses although there are several Rigid Gas Permeable Contact lens materials that are FDA approved for extended wear.  Soft Extended Wear Lenses are made of highly oxygen permeable hydrogel or “water containing” plastics that allow a great deal of oxygen to pass through to the cornea. Currently the highest degree of oxygen permeability is provided by silicone hydrogel materials. The Rigid Gas Permeable Lenses that are designed and approved for overnight wear are typically made of “fluorosilicone” acrylic materials, which do not contain water, but due to the nature of the plastic, are quite permeable to oxygen. How long you are able to wear your contact lenses will depend on the lens type and the specific recommendations of your Doctor & Associates Ophthalmologist based on your contact lens examination, contact lens fitting and the evaluation of your tolerance for overnight wear. In general, it is important for your eyes to have a rest without lenses for at least one night following each scheduled removal. Thus, you must have a pair of backup eyeglasses even if you wear extended wear contact lenses or contact lenses of any type.

Disposable or Planned Replacement Contact Lenses

Today, most daily wear and extended wear soft contact lenses are prescribed with a very specific “planned replacement schedule”. That is, the prescribing eye doctor will give you instructions on how frequently to replace your lenses based on your tear film, how often you may be removing the lenses and how quickly you soil the lenses, even after cleaning and disinfection. True “Disposable” Contact Lenses are worn only once and then discarded. In order to have a “daily wear disposable schedule”, a brand new pair of lenses is used each day.

Patients need to be cautious if they do not have their contact lens prescriptions filled at Doctor & Associates. Contact lens sellers refer to some soft contact lenses as “disposable”, but actually, they are for frequent/planned replacement. With Extended Wear lenses, the lenses may be worn continuously for the prescribed wearing period (for example, 7 days to 30 days) and then thrown away. If you are wearing your lenses on a planned replacement basis or even an extended wear basis, when you remove your lenses, ALWAYS make sure to clean and disinfect them properly before reinserting them. This is necessary in order to protect the health of your eyes and allow you to continue to wear your contacts comfortably and safely.

Multifocal Contact Lenses

Multifocal Contact Lenses have become increasingly popular as a greater number of patients enter their 40's and wish to continue enjoying the benefits of contact lens wear without being dependent on eyeglasses or reading glasses for close vision throughout their day. Multifocal Contact Lenses are available in a number of different designs, materials and prescriptions that are useful for successfully fitting a wide range of patients and their various far, intermediate and near vision correction needs. The key to success is a careful thorough examination and fitting along with helping each patient understand their actual vision correction needs.

Specialty Contact Lenses

At Doctor & Associates, the vast majority of contact lenses prescribed fall into the categories as described so far. We do prescribe contact lenses for some special purposes for those patients requesting these types of fittings and contact lenses:

Decorative Non Prescription Contact Lenses

A type of specialty lens contact lens that has become popular among people who don’t even have a need for vision correction are contacts that have the sole purpose of changing the appearance of your eyes. These are sometimes called “Plano”, “Zero-Powered” or “Non-Corrective” lenses. Wearers of these contact lenses can temporarily change a brown eyes to blue and can even create different themes such as Halloween or Dracula by modifying the eye’s appearance.

EVEN THOUGH THESE DECORATIVE LENSES DO NOT CORRECT VISION, THEY ARE A MEDICAL DEVICE FDA STRICTLY REGULATES THEM . This is because, even with correction, they pose the identical risks to patients that “regular’ contact lenses pose.

These include:

  • Conjunctivitis or Pink Eye
  • Corneal Abrasions
  • Corneal Ulcers
  • Vision Impairment

Many patients are simply unaware of the need for proper fitting and prescription of these lenses and have purchased decorative contact lenses from beauty salons, record stores, video stores, flea markets, convenience stores, beach shops and the Internet. Buying contact lenses without a prescription is dangerous!

Doctor & Associates offers consultation, examination and fitting of all types of Contact Lenses including Soft Contact Lenses, Rigid Gas Permeable Contact Lenses, Contact Lenses for Astigmatism, Extended Wear Contact Lenses, Disposable or Planned Replacement Contact Lenses and Specialty Contact Lenses that can change the color of your eye for patients from Danbury, Stamford, Greenwich, Westport, Weston, Wilton, New Canaan, Norwalk, Fairfield, Bridgeport, Cannondale, Aspetuck, Redding, Trumbull, Shelton, Monroe, Darien, Glenbrook and Ridgefield Connecticut. Patients wishing to schedule a consultation, examination or fitting of any type of Contact Lens in Connecticut may do so by phoning 203.227.4113.

The Ophthalmologists at Doctor & Associates serve adults and children in Fairfield County and southern Connecticut needing eye exams for eyeglasses & contact lenses, LASIK,
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