What harm would be caused to the cornea often wears contact lenses?

Contact lens use in the young patients with myopia is very extensive, and there are many beautiful young people without myopia also likes to wear colorful Discount Oakley Sunglasses. But studies have found that contact lenses damage should not be underestimated, with the growth of microscopic life, contact lens on coeal injury is also growing.

Effect of contact lenses on coeal endothermic cells

People from outside to inside is divided into 5 layers of the coea, the epithelial cell layer, ex-elastic layer, maelstrom, Descended membrane and the endothermic cell layer. Endothermic cell layer is a single layer of hexagonal cells, it can limit water penetration into the coea, to regulate material exchange between the coea and aqueous humor, play an important role in barrier between the coea and aqueous humor. This layer of cells caot be regenerated once the damaged or missing; coeal edema can be difficult to cure blindness.

Contact lenses may be wo on the surface of the coea, contact with epithelial cell layer, no contact with endothermic cell layer, but long-term wearing of contact lenses, which have an impact on the endothermic cell layer, is. Japan study finds that long-term wearing of contact lenses can lead to reducing the number of coeal endothermic cells and morphological changes occur. Also, different types of contact lens on coeal endothermic cells are not the same. Oxygen permeability of soft lenses and low water content rate ordinary contact lenses more poor, while rigid lenses high oxygen permeability rate had little impact.

Oakley Sunglasses Discount the wearer, especially the need for long-term wearing of the wearer, you should use the high oxygen-permeable hard contact lenses.

Effect of contact lenses on coeal epithelial stem cells

In our many tissues of the body, retains a number of undifferentiated cells, which when needed for cell division by development pathway, and then differentiate into the cells to repair or regenerate human tissue.

Once coeal epithelial stem cells lacked, it means that the coea pathological changes have little chance of recovery. Causes of coeal epithelial stem cells lacking many, long wearing contact lenses is one of them. Experts believe that contact lens on coeal libel area slight and difficult to detect chronic injury; will result in loss of coeal epithelial stem cells gradually, thus affecting their regeneration capacity.

Eyes are our most important sensory organs, invisible Discount Oakleys glasses to bring light and comfortable at the same time, factors that underlie harm eyes. So, friends need to wear contact lenses, be sure to select all types of contact lenses, more small high wear on the coeal gas permeable hard contact lenses, and follow a strict system of mirrors and nursing requirements, to avoid complications.