Clement Clarke originally developed the popular Perkins tonometer during the 1970s. Over time, it has been updated and improved, creating an ergonomic design, as well as giving the instrument an integral rechargeable battery.

The Perkins Mk3 tonometer is available to buy from the Haag-Streit UK eshop.

Innovative built-in LED illumination produces an enhanced image of the tonometer mires, permitting use regardless of ambient lighting conditions. It also produces lower operating temperatures, giving greater comfort to both the operator and the patient.  In conjunction with the longer-lasting battery, less energy is required, so increased operating times of the Perkins tonometer are achieved.

The hand-held Perkins tonometer is comfortable to hold and well-balanced. It has been specifically designed to examine patients who have often been difficult to assess by traditional applanation tonometry methods. These include; bed-ridden, wheelchair-bound, paediatric and community-based patients.

The Perkins tonometer is compatible with both reusable Goldmann tonometer prisms and Haag-Streit Tonosafe disposable tonometer prisms.  The easy-to-use ‘Tonogrip’ tonometer prism holder allows for straightforward placement of both sterilized Goldmann prisms and Tonosafe prisms. 

At Haag-Streit UK, we are always happy to support our customers with any queries on our range of products. As a first port of call, we have put together a comprehensive list of tonometry frequently asked questions.  

HS-UK is the only UK service provider that uses genuine Haag-Streit tonometer parts and test jigs calibrated to Haag-Streit standards, as it is the only Haag-Streit authorised applanation tonometer service agent in the country. You can rest assured we use state-of-the-art testing and calibration equipment and genuine parts and materials. At our purpose-built, fully-equipped workshop facility, your tonometer will be fully-inspected, its worn or broken parts replaced, including cone arms and bearings, and its calibration will be checked, all before it is thoroughly decontaminated and returned to your clinic.