Schiotz Tonometer
Free!
The Schiotz Tonometer is a portable, mechanical device for quick intraocular pressure screening. A weighted plunger indents the cornea and the scale reading converts to mmHg. It is reliable, affordable, and easy to maintain, making it ideal for clinics, outreach programs, and as a dependable backup when applanation or electronic systems are not available.
Description
The Schiotz Tonometer is a handheld, mechanical instrument used to estimate intraocular pressure during an eye exam. A smooth, weighted plunger gently indents the anesthetized cornea. The scale reading is then converted to mmHg using a standard chart. Its simple design, rugged build, and independence from power make it a dependable choice for clinics, outreach programs, and as a backup to electronic or applanation devices.
Key features and benefits
• Mechanical indentation method for quick screening
• Clear scale with conversion chart to record results in mmHg
• Interchangeable weights to cover low and high pressure ranges
• Stable, curved footplate for consistent corneal contact
• Precision plunger movement designed for repeatable readings
• Portable, durable case for safe storage and transport
• Easy to clean and disinfect between patients
Common uses and applications
• Routine glaucoma screening in primary eye care
• Mobile eye camps and community health programs
• Emergency or backup use when other tonometers are unavailable
• Training environments that value robust, easy-to-learn tools
• Veterinary practices that need a rugged, economical option
Comparison and guidance
Compared with applanation tonometers, indentation readings can be influenced by corneal properties and tear film. Good technique, multiple readings, and regular calibration checks help ensure reliable results. Many practices keep a Schiotz Tonometer as a secondary device due to its low maintenance and long service life.
Compliance note
Follow local medical device regulations, infection control guidance, and standard clinical protocols for topical anesthesia, alignment, and result recording.
