George Jessen created what was probably the first orthokeratology design in the 1960s made from PMMA material, which he marketed as "Orthofocus". These early designs had generally …

Apr 23, 2023 · Orthokeratology, or ortho-k, is the use of special part-time contact lenses to temporarily reshape the cornea and improve vision when you take the contacts out.

Jan 7, 2025 · Orthokeratology is a nonsurgical process, using hard contact lenses, which temporarily corrects refractive errors like myopia and astigmatism in both children and adults. …

Jul 6, 2024 · Orthokeratology (ortho-k), also known as corneal refractive therapy, CRT, overnight vision correction, gentle vision shaping system, GVSS, or vision shaping treatment, VST, is a …

Jun 24, 2024 · Orthokeratology (OK) is a form of overnight rigid gas-permeable (RGP) contact lens which reshapes the curve of the cornea to both correct myopic refractive error in adults …

Feb 27, 2019 · Orthokeratology (ortho-k) is the fitting of specially designed gas permeable contact lenses that you wear overnight. While you are asleep, the lenses gently reshape the front …

Aug 15, 2025 · Ortho-K uses specially designed gas-permeable contact lenses that temporarily reshape the cornea to reduce common refractive errors, such as myopia. These lenses are …

What is Orthokeratology? Orthokeratology is a non-surgical vision correction procedure that uses specially designed gas-permeable lenses to reshape the cornea while you sleep. By morning, …

Sep 24, 2024 · Orthokeratology, often called Ortho-K, is a safe, FDA-approved treatment that temporarily reshapes your cornea while you sleep. Here's the key idea: It uses unique, rigid …

ORTHO-K (SHORT FOR ORTHOKERATOLOGY) IS A NON-SURGICAL PROCEDURE USING SPECIALLY DESIGNED CONTACT LENSES TO GENTLY RESHAPE THE CURVATURE OF …