Gas permeable contact lenses replaced the use of hard contact lenses. Hard contact lenses, developed during the 1960s, did not allow oxygen to reach the cornea of the eye. Gas permeable contact lenses, however, allow oxygen to reach the cornea...
Gas permeable contact lenses have several advantages over soft lenses. In general, gas permeable lenses give the wearer sharper vision. They also last longer than soft contact lenses. Proper maintenance of gas permeable lenses is important in...
More than 38 million Americans wear contact lenses and many wear gas permeable or RGP lenses, according to the American Optometric Association. Gas permeable contact lenses are made from a firm plastic that allows oxygen to get to the cornea,...
Gas permeable contact lenses are rigid lenses made from materials that allow oxygen to penetrate and reach the eye. According to the U.S. Food and Drug Administration, gas permeable lenses are generally more durable and provide better vision...
Permeable gas contact lenses, also known as GP lenses, rigid gas permeable lenses and oxygen permeable lenses hit the market in the late 1970s. Unlike hard contacts that do not allow the eyes to breathe, permeable gas contact lenses allow oxygen...
You may not have heard of gas permeable contact lenses, but they are a more recent technology than soft contact lenses, reports All About Vision. Introduced in the 1970s, gas permeable lenses offer the benefit of allowing more oxygen to get to...
Leaky gut syndrome is also termed intestinal permeability. Medical News Today notes that intestinal permeability is at the root of conditions such as irritable bowel syndrome, or IBS. Leaky gut syndrome is also implicated in other conditions such...
According to experts at Cincinnati Children's Hospital Medical Center, the single layer of cells lining your gastrointestinal tract represents the largest and most important barrier between your bloodstream and a hostile external environment....
In some cases, cells from the blood need to pass through blood vessel walls in order to carry out their function. White blood cells, for example, are an important part of the immune system and travel throughout the circulatory system but may need...
Glutamine is one of 20 amino acids used by your cells to manufacture proteins and other important molecules. Due to its small size and chemical structure, glutamine can be carried through your bloodstream without being attached to a transporter...
Leaky gut syndrome is a condition thought to arise from permeability, or leakiness, of your intestinal lining. Increased intestinal permeability has been implicated in any number of medical disorders, including celiac disease, irritable bowel...
Johns Hopkins Medicine defines fibromyalgia syndrome as a chronic illness involving pain in multiple locations on the body. A syndrome entails a set of signs and symptoms that collectively distinguish an abnormal condition. The characteristic...
Sublingual tablets are tablet medications designed to be administered through the mucosal membranes lining the floor of your mouth. Sublingual tablets differ from oral tablets because sublingual tablets are generally absorbed more quickly than...
Eye contact lenses were first developed in the 1960s, and have continually improved. The early contact lenses were known as hard contact lenses. That is, these lenses were rigid. They were made of a plastic called polymethyl methacrylate (PMMA)....
Allergies are caused when your immune system attacks against an allergenic substance, called an allergen. Your white blood cells mistake the substance, such as a food protein, pollen, medication or an animal hair, as harmful and attack it with...
Celiac disease, also called coeliac disease or gluten intolerance, is an abnormal immune response to dietary gluten that destroys villi in the small intestine. Gluten is a protein in wheat, barley and rye. More prevalent in those of Northern...
No specific studies exist that examine the benefits of glutamine in older people compared to other age groups. Glutamine has a number of clinical applications, but it is not well known whether glutamine works the same way in elderly people. Some...
There are many benefits associated with sports massage for athletes. Sports massage can be used pre-performance or post-performance and also during training or as a rehabilitative modality. Each of the benefits of sports massage are either...
One of the ways in which DMSO (dimethyl sulfoxide) can be used is as a solvent, which means that it can be used to dissolve things. As a September 2007 article in the "Biophysical Journal" titled "The Permeability Enhancing Mechanism of DMSO in...
Glutamine is one type of amino acid, the building blocks that make up proteins. As the most common amino acid in the body, glutamine plays important roles in many organs, including the lining of the digestive tract. Recent evidence has raised the...
L-glutamine is an amino acid naturally found in many protein-containing foods. It is also available as a food supplement and is taken by strength and endurance athletes to support muscle growth and to aid post-workout recovery. In your body,...
Acacia belongs is a large genus tropical and subtropical shrubs and trees, endemic to Australia, Africa, and North and South America. Various parts of this large genus of plants are used externally and internally for medicinal purposes, and as a...
According to the University of Maryland Medical Center, cayenne pepper has been used by Native Americans to flavor food and heal illnesses for more than 9,000 years. As a medicine, cayenne pepper has been used topically to treat such maladies as...
The majority of the 98.6 million American adults who have been given the news that they have high cholesterol generally understand they are at risk for heart disease. According to the American Heart Association, adults with cholesterol levels over...
Amino acids are nitrogen-containing molecules that serve a variety of purposes in your body. Their most prominent role is in the formation of proteins, which serve as structural elements, transport and storage molecules, hormones, enzymes and...
Impaired venous circulation can lead to varicose veins, which are not only a cosmetic problem, but can also cause pain and discomfort, swelling, skin changes, and ulcerations. According to the Mayo Clinic, varicose veins are enlarged veins near...
High blood glucose levels are the primary cause of cardiovascular disease and nerve disorders in people with diabetes. As a study published in the Journal of the American Medical Association confirms, exercise has an impact on glucose control and...
Cholesterol may have a bad reputation due to it's relation to heart disease, but it is essential for several physiologic processes. Cells and organs throughout the body depend on an adequate amount of cholesterol for proper health and homeostasis.
Lysophosphatidylcholine (LPC) is by chemical definition classified among the substances known as phospholipids. Phospholipids, particularly phosphatidylcholine, the precursor of lysophosphatidylcholine, in general, are part of the structure of...
