Developed by AcuFocus, the Kamra corneal inlay received FDA approval for use in the United States in April 2015. The device also has received a CE mark for the European Economic Area.


The Kamra inlay is designed to reduce or eliminate the need for reading glasses among people over age 40 who have good distance vision without glasses but have problems seeing up close due to presbyopia.

The Kamra corneal inlay (left) is used for presbyopia correction.


The Kamra device is very small and thin — just 3.8 millimeters (about 0.15 inch) in diameter and 6 microns thick (about half the thickness of plastic wrap used to store food). It consists of an opaque outer ring and a tiny (1.6 mm) central opening that is placed directly in front of the center of the pupil. This creates a pinhole camera effect that extends the natural range of vision, making near objects appear clearer without significant loss of distance vision.

KAMRA Inlay vs Contact Lens