Contact Lense Information Site
Information on lenses and eye conditons
Brought to you by Visual Innovations & Solutions
Contact Lenses can aid those with visually impairments such
as myopia, hyperopia, astigmatism, presbyopia,and
kerataconos. There are also other types of lenses for
reshaping your eyes as well as prosthetic contact lenses and
others.
· Myopia:
Myopia is also known as nearsightedness. This is hereditary and shows itself in childhood. It occurs when the eyeball is slightly longer than usual from front to back. This causes light rays to focus at a point in front of the retina instead of directly on the surface. Contact lenses can benefit those with myopia.
http://contactlensinfosite.info/Myopia_and_Hyperopia.html
· Hyperopia:
Hyperopia is also known as farsightedness which is also a hereditary factor. This occurs when the eyeball is too short or the cornea is too flat. The light rays entering the eye focus behind the retina rather than directly on it. Contact lenses can benefit those with hyperopia.
· Astigmatism:
Astigmatism causes blurry vision when looking at objects that are close and objects that are far away. In astigmatism, the cornea is irregularly curved, instead of being round. This irregular shape causes light to scatter and to bend, or refract, improperly as it passes through the cornea. Instead of focusing directly on the retina, some light rays focus in front of and some focus behind the retina. These multiple focal points distort vision. Contact lenses can benefit those with astigmatism.
http://contactlensinfosite.info/Astigmatism___Presbyopia.html
A person with presbyopia has difficulty focusing on close objects. The crystalline lens has become less flexible and the eye muscles that support the lens and allow it to accommodate have weakened. When a person focuses on distant objects, the lens thus becomes flatter. When focusing on close objects, it becomes rounder. The results are that distant objects are seen clearly and close objects become blurred. This happens because the lens cannot resume the shape that it needs to bring them into focus. Contact lenses can benefit those with presbyopia.
http://contactlensinfosite.info/Astigmatism___Presbyopia.html
· Kerataconos:
Symptoms of kerataconos are frequent changing of glasses, blurring and distorted vision, light sensitivity, scarring of the cornea, and glare. The cornea becomes thin and protrudes. This abnormal shape can cause distortion of visual images. This usually appears in ones late teens and progresses for the next 10 to 20 years as the cornea steepens and scars. Contact lenses can benefit those with kerataconos. http://contactlensinfosite.info/Astigmatism___Presbyopia.html
· Prosthetic Contact Lenses:
There is about two percent of the population whom have had serious eye injuries as a result of an accident, and others have vision problems as a result of unsuccessful eye surgeries or birth defects. This is where prosthetic contact lenses come into play. We look into those eye conditions in detail.
· Dry Eyes:
There are many factors that contribute to dry eyes. They include tearing, watery eyes, red or burning eyes or the feeling as if something is in your eyes. Contacts can aid in the discomfort of this condition. http://contactlensinfosite.info/Astigmatism___Presbyopia.html
· Giant Papillary Conjunctivitis:
This is an inflammatory allergic reaction that occurs in your eyes that occurs from contact lens wear. Proteins are secreted from ones eyes. Ones vision is not clear and the person is uncomfortable. There are options to correct this and to keep wearing contacts.
http://contactlensinfosite.info/Astigmatism___Presbyopia.html
· Contacts for After Corrective Surgery:
Many times it is necessary to use contacts after surgery, especially after LASIK. There are several reasons for this but they are all usually easily corrected. They include soft and gas permeable lenses.
http://contactlensinfosite.info/Astigmatism___Presbyopia.html
Contact Lenses:
Contact lenses produce a smooth optical surface on the front of ones eye. This in turn grants the incoming light to focus on the retina. There are soft lenses which can also be customized and rigid gas permeable lenses (RPG’s)
Soft Lenses- The two main types are hydrogel or hydrophilic. They preferred as they are disposable. The benefit of disposable lenses is in regards to ones eye health. Having a fresh lens means that you can discard them before proteins build and before the lens deteriorates.
Soft lenses are larger in diameter and extremely flexible. Most people find them comfortable to wear from the start. However depending upon your situation a RPG may be necessary for crisper vision.
Rigid Gas Permeable Lenses-RPG’s are worn for at least one year. The material that they are made from is different than soft lenses and does not deteriorate in the same fashion so they can be worn for a longer period of time with proper care.
RPG’s are smaller and also stiffer so they do take some time to become accustomed to. RPG’s are widely used for many eye conditions as you will find throughout this site.
Brought to you by:
Visual Innovations & Solutions