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IOP through Eyelid & Sclera

diaton tonometer

Innovative Diaton Tonometer provides high reliability of measuring results and makes it possible to diagnose glaucoma on the early stage and appoint necessary treatment and medicines for adult as well as pediatric population.

The unique methodology of intraocular pressure (IOP) measuring through the eyelid and sclera applied in the device provides new resources in ocular tonometry, simplicity and safety of tests.


Transpalpebral “diaton” tonometer is effective and irreplaceable in various situations:

  • Quick and painless screening examinations of adult or pediatric patients
  • IOP control during selection of adequate medicines
  • IOP measuring in the presence of chronic conjunctivitis, corneal erosion, edema and cornea dimness
  • IOP measuring in patients after corneal surgeries
  • Intraocular pressure monitoring (diurnal tension curve)
  • IOP measuring in immobilized patients and in children
  • IOP measuring during contact correction (contact lenses or scleral lenses are not taken out).
  • Tonometer Diaton is the perfect solution in the following cases when the use of other tonometry devices is problematic or impossible: Keratitis, Conjunctivitis, Keratotone, Cornea Dimness, Keratoprosthesis, Keratoplastics, LASIK, LASEK, PRK, Astigmatism, Ametropy, etc.,

    Who Uses the Diaton Tonometer?

    Diaton Tonometer is intended for use by Ophthalmologists, Optometrists, Ophthalmic technicians as well as Inpatient & Outpatient Clinics such as Hospitals, Emergency Rooms, Urgent Care Clinics, Nursing & Elderly Homes, General & Specialty Practitioners.

Tonometer by Diaton in Use

New Diaton Tonometer has a number of indisputable advantages, making the IOP measuring process handy for the doctor and comfortable for the patient.

FeaturesDiatonGoldmann TonometerShiotz TonometerAir-JetTonopen
No contact with the cornea
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
Ability to monitor IOP with scleral contact lenses in the eye
Safe: No risk of infecting or scratching cornea

Clinical comparison studies of Diaton tonometer and Goldmann tonometer are the evidence of high reliability of Diaton tonometer’s accuracy: Clinical Studies


Measurement range, mm Hg5-60
Measurement errorLimit 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 more3
Supply voltage, V3
Number of measurements using one battery set, not less1500
Service life, not less8
Weight, g89
Dimensions, mm, not more174 x 26 x 20