Healing time may vary from person to person. The procedure takes less than 15 minutes and can be performed in the eye surgeon's office. This allows both eyes to see at distance, while the Kamra inlay improves near vision. The Kamra inlay typically is implanted in the non-dominant eye. ![]() This creates a "pinhole camera effect," which expands the range of clear vision to bring near objects into sharper focus while maintaining clear distance vision. When implanted in the cornea, the Kamra inlay is positioned so its central opening is directly in front of the pupil of the eye. The inlay has an opaque outer ring and a tiny (1.6 mm diameter) central opening. The Kamra corneal inlay (left), shown here next to a gas permeable contact lens. The Kamra inlay is very small and thin - it's just 3.8 mm in diameter (about one-quarter the size of a soft contact lens) and 6 microns thick (less than one-tenth the thickness of an average human hair, or about the diameter of a single red blood cell). People between the ages of 45 and 60 who have good distance vision without glasses but have problems seeing up close due to presbyopia. The Kamra inlay is designed to reduce or eliminate the need for reading glasses among Developed by AcuFocus, the Kamra inlay also is commercially available in nearly 50 countries worldwide. In April 2015, the Kamra inlay became the first corneal inlay to gain FDA approval for use in vision correction surgery performed in the United States. Food and Drug Administration (FDA) will allow an eye surgeon to perform the combined procedure, even though it has not yet been officially approved by the FDA.)Ĭorneal inlay surgery is less invasive and may have fewer risks than phakic IOL procedures, which involve implanting lenses further back inside the eye, either directly behind or in front of the pupil.Īlso, because no corneal tissue is removed during inlay surgery, this procedure may be a good alternative for people whose corneas are too thin for LASIK or PRK. (This is considered an "off-label" use of the procedure in the United States, meaning the U.S. For these reasons, it appears corneal inlays will likely be the preferred device for doctors and patients interested in this refractive surgery option.Ĭorneal inlay surgery sometimes can be combined with LASIK surgery to correct both presbyopia and nearsightedness, farsightedness and/or astigmatism. The primary purpose of these devices is to improve near vision and reduce the need for reading glasses in older adults who have presbyopia.Īs their names suggest, corneal inlays and onlays differ in where they are implanted within the cornea: corneal onlays are placed near the surface of the eye, directly under the thin outer layer of the cornea called the epithelium inlays are placed deeper in the cornea - in the thicker middle layer called the stroma.īecause they are implanted deeper in the cornea, corneal inlays may be more stable and deliver more predictable and long-lasting results than corneal onlays. Some of these devices resemble very small contact lenses. Corneal inlays and corneal onlays are tiny lenses or other optical devices that are inserted into the cornea to improve reading vision.
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