Tonometer refers to a portable medical device used to determine the intraocular and fluid pressure within the eye. It consists of a metal plunger and flat-tipped probes that are pressed gently against the surface of the eye. The global tonometer market size reached US$ 358.2 Million in 2023. Looking forward, IMARC Group expects the market to reach US$ 548.7 Million by 2032, exhibiting a growth rate (CAGR) of 4.7% during 2024-2032.