Understanding Orthokeratology: A Non-Surgical Approach to Vision Correction

What Orthokeratology Is

Orthokeratology (Ortho-K) is a non-surgical method of vision correction that involves wearing specially designed rigid gas-permeable contact lenses overnight. These lenses gently reshape the cornea, the clear front surface of the eye, to improve daytime vision without requiring glasses or traditional contacts.

The process works by temporarily altering the curvature of the cornea, which can help reduce myopia (nearsightedness) and potentially slow its progression in children.

How Ortho-K Lenses Work

Ortho-K lenses are custom-made to fit each individual’s eye. While worn overnight, they gently flatten the central cornea, creating a temporary change that can improve vision during waking hours without the need for corrective lenses.

The reshaping effect is achieved by applying gentle pressure on specific areas of the cornea, which gradually changes its shape over time.

Benefits and Considerations

Ortho-K offers several benefits, including improved vision without glasses or contact lenses during waking hours, reduced dependence on corrective lenses, and potentially slowing myopia progression. However, it also comes with considerations such as the need for regular follow-ups to monitor eye health and potential side effects like discomfort or dry eyes.

It is particularly beneficial for children whose myopia may be progressing rapidly, offering a non-invasive alternative to laser surgery.

Real-World Applications

Ortho-K has been used successfully in clinical settings worldwide, especially among children and young adults. Studies have shown that it can effectively correct myopia and potentially slow its progression, making it a valuable tool for managing vision issues without the need for surgery.

The technique is also being explored for use in other conditions such as keratoconus, where the cornea becomes thin and bulges outward.

Frequently asked questions

Try it live

Everything above runs in your browser — open Orthokeratology (Ortho-K) Lens Simulator and change the parameters while it is running. Nothing is installed, nothing is uploaded, the whole model lives in one tab.