MUMBAI, India, Feb. 28 -- Intellectual Property India has published a patent application (202417071060 A) filed by Essilor International, Charenton-le-Pont, France, on Sept. 20, 2024, for 'device for determining a shift in a refraction value of an eye.'

Inventor(s) include Dubail, Marie; Scherlen, Anne-Catherine; and Fricker, Sebastien.

The application for the patent was published on Feb. 28, under issue no. 09/2025.

According to the abstract released by the Intellectual Property India: "Device for determining a shift in a refraction value of an eye lighted by a light beam emitted by a light source and transmitted through an optical filter, wherein: - memories (11) have in memory: a value (100) of an initial spectral feature of said ligh...