Overnight orthokeratology: the treatment and control of childhood myopia comes of age

Overnight orthokeratology is a refinement or advancement of the clinical technique of contact lens-based orthokeratology (OK), which has been in use worldwide since the 1960s. It is a corneal refractive therapy used in the treatment of conditions of the eye, principally myopia (short-sightedness), but also presbyopia (long-sightedness), hyperopia (age-related loss of ability to focus on near objects) and astigmatism (an […]

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