Diaton Digital Portable Non Contact Tonometer

Diaton Digital Portable Non Contact Tonometer For Scleral Tonometry



Diaton tonometer is a handheld device measuring IOP through the eyelid and over the sclera with no contact to the cornea & causing no discomfort to the patient. Diaton is a pen-like tonometer that measures IOP within seconds without the need for anesthesia or sterilization.

Top Benefits of Diaton Non-Contact Scleral Tonometer

  • Preferred by Top Doctors and Patients
  • Very Easy to use. Can be used by any trained personnel
  • Quick, Puff-free & Painless (Perfect for children and adults)
  • No contact with the cornea (only upper eyelid and sclera)
  • No need for anesthesia drops (no side effects)
  • No need to take out Contacts or Scleral lenses (Only with Diaton)
  • Safe. No risk of infecting or scratching cornea (safer vs other methods)
  • Cost efficient. No consumables (no need to purchase replacement tips, probes or covers, etc.)
  • Latex-free, handheld, non-contact, portable, pen-like tonometer
  • No sterilization (just alcohol swab is used to wipe off the tip)
  • Accurate. No pachymetry needed (independent of corneal biomechanics)
  • No special set-up needed (measure anytime, anywhere without the need of any other preparation before the eye examination)
  • IOP Monitoring enables IOP monitoring with Scleral Lenses being in the eye
  • Ready-to-use. Daily calibration not required (saves time) 

diaton is a safe & easy-to-use screening tool which makes it possible to identify patients at risk for glaucoma & refer them to ophthalmology.

4.5  million people all over the world are blind due to glaucoma & this number will rise! Due to the silent progression of this disease, majority of the infected people do not even suppose that they  have such a disease. The rise of IOP is one of the main factors that indicate glaucoma presence. And now, we present a safe & easy method to measure IOP, diaton tonometer, that can detect glaucoma at its early stage & as a result will help to save patients' eyes!



Spheres of diaton tonometer application

  • ophthalmology (including children's)
  • general medical practice
  • optometry
  • neurology

Method for measuring the intraocular pressure through the eyelid and the device realizing this method are protected by the Patent of Russia ŠÜ_ 2123798, United States Patent ŠÜ_ US 6,394,954 _ê1 and Patent of Japan ŠÜ_3593314.

Nowadays transpalpebral scleral tonometry has no other  alternative in the world. It is the most favourable method to carry out  preclinical medical research of the population and , moreover,it works in such  complicated clinical cases when it is impossible to use  classical tonometry methods. Diaton is a helpful tool for ophthalmologists faced with pediatric patients or who have corneal abnormalities such as corneal edema, erosions or keratoprosthesis. 

Approved by the FDA in 2006, the instrument has been the subject of numerous clinical trials, where it has been found to be comparable with the gold standard, the Goldmann tonometer, and with many other devices.

Innovative approach to IOP measurement opens up wide medical opportunities and indisputable benefits both for doctors &  patients:

for doctors:

  • Accurate results
  • Wide range of medical opportunities
  • Quick & efficient  procedure of measuring (IOP measurement takes several seconds)
  • Creates an image of a modern doctor working in an up-to-date equipped medical center
  • Wide medical opportunities
  • Low dispensable materials' expenses

for patients:

  • No contact to the cornea
  • No risk of infection
  • No anesthesia drops
  • No pain
  • No need to take out contacts

Transpalpebral "diaton" tonometer is effective and irreplaceable in complicated medical cases:

  • Can measure IOP even in the presence of viral infections, allergic reactions, dry eye syndrome, contraindications for corneal tonometry
  • Can serve as non-invasive day monitoring tool while selecting the adequate hypotensive medical treatment
  • Can measure IOP  on patients after corneal surgeries
  • Can measure IOP with contact lenses on
  • Can measure IOP on immobilized patients
  • Screening tool for elevated IOP by PCPs
  • Trained family members  can monitor IOPs of glaucoma patients at home
No contact with the cornea +        
Portability +  +   + +
Displays independence from cornea's crookedness.
Digital IOP indication +   + + +
Measurement in sitting position +   + + +
Measurement in reclining position + +   +  
Short-time measurement +   +   +
Sterilization is not required +   +   +
Anesthesia is not required +   +   +
Dispensable materials are not required +   +    
No need to take out the contact lens + - - - -

Comparative tests of diaton tonometer and Goldman tonometer give the evidence of high reliability that diaton tonometer guarantees.


Measurement range, mm Hg 5-60
Measurement error Limit of the admissible measurement error in the range, not more:
from 5 to 20 mm Hg - ±2 mm Hg;
from 20 to 60 mm Hg - ±10%
The time of a single measurement, s, not more 3
Supply voltage, V 3
Number of measurements using one battery set, not less 1500
Service life, not less 5
Weight, g 89
Dimensions, mm, not more 174 ‹Ä 26 ‹Ä 20



The more detailed information on IOP measuring methodology and the meaning of the displayed symbols you can find in the manual accompanying the product

Note: All products sold on should be used by qualified clinician and should be purchased by or on order of a qualified clinician.

Customers Also Viewed

Discounted Prices


Product Reviews