Orthokeratology uses hard contact lenses to reshape the eye and improve vision, mainly for nearsightedness. It is not suitable for everyone and requires a gas-permeable lens material to maintain eye health. Accelerated Orthokeratology can provide quick results, but the lenses must be worn continuously to maintain the effects.
Orthokeratology, sometimes referred to as orthoK, is an optical correction mechanism that uses hard contact lenses to physically reshape the eye in order to improve vision. In nocturnal orthokeratology, which is the most common application of this method, the special lenses are worn only at night and the temporary effects produce improved vision in the user during the following day. The benefits are mainly in the correction of nearsightedness, or myopia, and to some extent in the correction of astigmatism.
The process is not suitable for all patients, as it is based on a certain structure of the eye. Some people, for example, have particularly steep or flat corneal curves and these may not benefit much from the procedure. Patients for whom the method is often recommended include people who find it difficult to wear contact lenses during the day, for example because they work in an environment with a dusty atmosphere, or spend very high percentages of their time working with screens. computer or participate in certain sporting activities. activities that can make them prone to losing contact lenses.
The material from which orthokeratology contact lenses are made is essential for maintaining eye health. Contact lens wear can compromise the amount of oxygen available to the eye, and complications can result from oxygen deprivation, called corneal hypoxia. In extreme cases, this can lead to corneal ulcers, bleeding and impaired vision.
A modern orthokeratology lens is typically a rigid lens made of a special gas-permeable substance that allows high levels of oxygen to permeate through the lens to the eye. Most manufacturers of orthokeratology lenses adhere to standards and technologies approved by the United States Food and Drug Administration (FDA). The lens material is assigned a rating that relates to the level of its permeability to oxygen, known as a “Dk” rating.
Accelerated Orthokeratology is a term used by some treatment providers and patients can actually get quick results. The lenses work by exerting gentle pressure on the eye to effect redistribution and remodeling of the cells of the corneal cell. Vision improvements can be experienced immediately after the first nightly use of the lenses, and continued improvements can follow over a period of several weeks, after which the eye stabilizes. Orthokeratology lenses must be worn continuously, as if the lenses are discontinued, the eye will simply return to its original shape.
Protect your devices with Threat Protection by NordVPN
