MUMBAI, India, May 1 -- Intellectual Property India has published a patent application (202641049157 A) filed by Karthi Nallasivam; Mrs. P. Radhika; Dr. P. Vivekanandan; Mr. M. Kowshik; Ms. B. Harithra; Mr. E. V. Nihil Karthikeyan; and Mr. J. Samuel Jebakumar, Erode, Tamil Nadu, on April 17, for 'portable non-contact tonometer for home based iop monitoring.'
Inventor(s) include Karthi Nallasivam; Mrs. P. Radhika; Dr. P. Vivekanandan; Mr. M. Kowshik; Ms. B. Harithra; Mr. E. V. Nihil Karthikeyan; and Mr. J. Samuel Jebakumar.
The application for the patent was published on May 1, under issue no. 18/2026.
According to the abstract released by the Intellectual Property India: "The present invention addresses these limitations by providing a compact, cost-effective, and user-friendly device that utilizes a controlled air-puff mechanism and optical sensing technique to measure IOP without direct contact. The system is designed to ensure safe operation, reliable performance, and ease of use, making it suitable for both clinical and home-based applications. By enabling continuous and accessible monitoring, the invention aims to improve early diagnosis, enhance patient awareness, and reduce the risk of glaucoma-related vision impairment, especially in remote and underserved regions. Conventional tonometry techniques, such as contact-based methods, require direct interaction with the cornea, use of topical anesthesia, and skilled medical personnel, thereby limiting their accessibility for frequent monitoring. Non-contact systems available in clinical settings are often bulky and expensive, restricting their use outside hospitals."
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