The cost of instruments used to measure intraocular pressure (IOP) varies significantly based on several factors. These include the technology employed (e.g., applanation tonometry, non-contact tonometry, rebound tonometry), portability, features (such as automated measurements and data storage), and manufacturer. A simple, portable tonometer for screening purposes might cost significantly less than a sophisticated diagnostic instrument found in a specialized ophthalmology clinic.
Accurate IOP measurement is crucial for diagnosing and managing glaucoma, a leading cause of irreversible blindness. Early detection and treatment can significantly slow or halt disease progression, preserving vision. The availability of reliable and affordable tonometers is essential for widespread screening and accessible eye care, especially in resource-constrained settings. Technological advancements have led to more precise and user-friendly instruments, expanding access to quality eye care.