Unique Scleral tonometry THROUGH Eyelid


Diaton Tonometer


One Tonometer – Many Applications
Think Outside the Cornea!
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Bring the Innovation of Diaton Tonometer to Your Practice GET A QUOTE

Major Benefits of Diaton Tonometer:

     1. Measures IOP THROUGH Eyelid and Sclera (ZERO contact with eyeball )

     2. Quick, Puff-free & Painless (Perfect for children and squeamish adults)

     3. Safe: No Risk of infecting or scratching cornea (safer vs other methods)

     4. No need for Sterilization or Disinfection (contact only with eyelid. Meets and Exceeds JCAHO Joint Commission Sterilization and Disinfection Standards)

      5. Enables to Measure Accurate IOP with Contact Lenses or with Scleral Lenses ON (Only with Diaton)


Convenience and Cost Efficiency:

     1. No Rubber Covers, Plastic Tips or Proparacaine (Latex-free, Green, Cost Efficient)

     2. No Calibration Diaton is pre-calibrated by design. Ready-to-use. (saves time and efforts)

     3. Easy to use. Can be used by any trained personnel (easy to follow step-by-step video instructions in 5 languages)

++Handheld, non-contact, portable, digital, pen-like tonometer++

Diaton Tonometer in Action

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 Department / Emergency Room, Urgent Care Clinics, Nursing & Elderly Homes, General & Specialty Practitioners as well as for Mass Glaucoma Screening purposes and medical missions.

Non-corneal, Scleral Diaton tonometer is particularly useful in cases where standard direct applanation (corneal) tonometry is difficult or not viable, such as with pediatric patients, in presence of certain corneal pathology, edema, infection, following corneal surgery, keratoconus, KPro and in cases of eye trauma.


“There has been a Renewed Concern about whether Scleral Lenses cause Increase in Intraocular Pressure.”
Multiple Clinical Studies showed IOP to elevate by ~5-10 mmHg regardless of scleral lens diameter worn.
Eye care practitioners that fit sclerals now Need to Measure & Monitor IOP with Scleral Lenses ON the eye!

IOP monitoring with Diaton minimizes the risks & liabilities for practices and increases the level of patient care.
Contact lens Spectrum covered the topic in detail:
1. Article in Contact Lens Spectrum By GREGORY W. DENAEYER, OD: SCLERAL LENSES AND INTRAOCULAR PRESSURE https://www.clspectrum.com/issues/2018/september-2018/the-scleral-lens-vault

2. CLS Article: Does IOP Increase During Scleral Lens Wear?  By PROF. PATRICK J. CAROLINE & MARK P. ANDRÉ Link: https://www.clspectrum.com/issues/2019/september-2019/contact-lens-case-reports

Diaton Tonometer: How To

A Unique Approach

“Diaton tonometry” is a unique approach to measuring intraocular pressure (IOP) through the Eyelid and Sclera. Non-Contact (no contact with cornea), no anesthesia or sterilization required, pen like, hand-held, portable tonometer.


Emil W. Chynn, MD, FASC from Park Avenue LASEK stated, – “As a Cornea-Refractive trained specialist, I encounter many situations where Goldmann readings are inherently inaccurate–like post-LASIK, in cases of corneal edema, scarring, keratoconus, post-keratoprosthesis or transplant. In such cases, it’s both invaluable and reassuring to have the Diaton device available to measure IOP that’s independent of corneal pathology”

“It works,” said Dr. Mark Latina, glaucoma specialist (Harvard / MEEI) and the inventor of Selective Laser Trabeculoplasty (SLT), after revealing results of the study titled: “Accuracy of Transpalpebral Tonometer Diaton Compared to Goldmann Applanation Tonometer in Normal and Glaucomatous Eyes”.  “The Diaton device provides a very useful way to confirm Goldmann tonometry, especially in certain complicated patients, in my glaucoma referral practice.”

Henry D. Perry, MD (Corneal Specialist and Comprehensive Ophthalmology – OCLI), – “Transpalpebral Tonometry is an accurate method of IOP measurement that is also independent from the biomechanical characteristics of cornea. It can be recommended for IOP measurements of patients diagnosed with glaucoma including those cases where cornea pathology or cornea characteristics have been altered.”

“The [device] is easy to use, user­ friendly, and it can be used on patients for mass screening,” Dr. Shazly said. “It’s portable, it’s economical; it’s really good for screening purposes.”

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