What is Orthokeratology?

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Although wearing your contact lenses for longer than your prescription Eagle Eye 911 Review  allows may seem like an easy way to save some money, it can have detrimental effects on ocular health. Contact lenses are a medical device and should be treated as such, in accordance with the recommendations of your eye care practitioner. Wearing contact lenses for too long can lead to abnormal blood vessel growth on the cornea; epithelial microcysts; thinning of the cornea; and reduced corneal sensitivity.

Eye problems caused by contact lens overwear are generally due to a decrease in oxygen transmitted to the eye. Oxygen is essential to the health of the cornea. When the eye is not absorbing enough oxygen through the contact lens, hypoxic conditions ensue. Hypoxia can lead to serious infections, including microbial keratitis, a painful and potentially sightthreatening corneal infection.Eye infections and other problems that arise from improper contact lens care can be very costly medical expenses and lost days of work, not to mention the inconvenience and impact on quality of life of vision problems. In 1990, researchers estimated that the cost of blindness and visual impairment to the federal budget of the United States was approximately $4 billion.
Risks and best practices

Contact lenses have been around for more than 100 years and though significant advances have been made in that time, the risks and side effects associated with wear remain a reality.A contact lens is a foreign object to the eye. If the lens does not fit properly or is not properly cared for, it can adversely affect vision and the eye itself.The most common problems associated with contact lens wear are excess tearing, itching or burning, dryness, sensitivity to light, and distorted vision. All of these symptoms can be worsened by improper lens care, which includes wearing lenses too long.

On occasion, a contact lens wearer will wear their lenses until their vision becomes blurred or distorted, and may not realize that this behavior can cause permanent, irreversible damage to the cornea, the front covering of the eye which provides about twothirds of the eye's focusing power. When contact lens wearers disregard their cleaning and lens replacement schedules, the ability of their contact lens to transmit oxygen to the cornea decreases, and deposits build up on the lens surface and within the lens material itself.

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