EASYTON IOP TONOMETER – Eye Pressure Tonometer, Tonopen


Tonometer for eye pressure measurement that relies on the transpalpebral method to provide as accurate results as those of intracameral IOP tonometry.



Tonopen  or IOP Tonometer (applanation tonometry) is a unique blend of technology and science. By its very nature, it is a tonometer eye pressure measurement device that relies on the transpalpebral method to provide as accurate results as those of intracameral IOP tonometry. This Tonopen is designed for ophthalmologists to be used in healthcare settings to encourage improvement in the diagnosis, monitoring, and treatment of glaucoma and other ocular conditions.


This Easyton Tonometer (tonopen) is approved by FDA. PDF


The effectiveness is backed up by many accuracy, reproducibility, and repeatability tests. This Easyton tonometer has also been proven to deliver next-level diagnostics performance in the study with the Goldmann method as a reference standard. We take pride in offering this eye Easyton tonometer for sale to help eye care specialists feel the difference in IOP measurement. It can be done easier with the guaranteed accuracy when this tonometer is at hand.


Operating Principle of the Applanation Tonometry for Eye Pressure Measurement


The functionality of our device (applanation tonometry) and the way it works cater to the needs of ophthalmologists as well as patients. Designed to simplify the process of eye pressure diagnostics and make it less stressful for people, the device is based on the vibrational operating principle. Tonometer or IOP tonometer helps minimize fluctuations and irregularities that often come with other IOP measurement methods.


Once the tonometer (applanation tonometry) for eye pressure diagnostics is applied, it starts producing multiple vibrations at different frequency levels (depending on how high or low the measured IOP is). The process begins as soon as you turn on the device and place the rod on the patient’s eyelid. This Easyton tonometer, a device then automatically processes pressure readings and recalculates them into millimeters of mercury (mmHg) so that you can see the average IOP value on its display screen.


Our tonometer eye pressure device (applanation tonometry) produces approximately 100 vibrations with a single push of the rod. Most of them are aimed at preventing the corneal thickness factor from affecting the results. By making up for the possible ambiguity of measurements, these vibrations are pivotal to ensure pinpoint accuracy of the IOP value.


Key benefits of the Tonopen or IOP Tonometer (applanation tonometry)


As evidenced by a variety of trials, is superior to other tonometry options. Here is what makes it your top choice:

  • Measurement is done by touching an eye lid, no direct eye contact
  • Careful measurement of intraocular pressure (IOP)
  • 100 vibrations per second in its measuring capabilities
  • No need to remove eye contact lenses during the measurement
  • Use for post-operative patients (Kpro, glaucoma, tumor, retina)
  • Simplified diagnosis of ocular hypertension/hypotension with the corresponding readings provided on the display screen
  • Ideal for pediatric ophthalmology
  • No consumables, no anesthetics
  • Galvanic measuring tip to extend the lifetime of the device

Indications for using tonopen (applanation tonometry) 

  • Kpro patients
  • Retina detachment and glaucoma
  • Intraocular tumor and eye trauma
  • Ocular hypertension and hypotension
  • Post Lasik and refractive surgery
  • Determination of glaucoma at early stage
  • Off road ophthalmology
  • IOP tonometry
  • Pediatric Ophthalmology
  • Corneal Tonometry
  • Artificial Cornea


Before you buy this Easyton Tonometer or tonopen (applanation tonometry), make sure you know what cases it must NOT be used for. Thus, is never an option if the patient has:

  • upper eyelid problems, including the abnormal shape, scars, inflammation, etc.;
  • conjunctival or scleral disorders that may be worsened by the vibrating rod;
  • any condition that results in a physical failure to remain in a sitting position (spine problems, bone diseases, early postnatal or post-op recovery period);
  • brain disorders, after-stroke, or any other condition that may interfere with the measurement process;
  • affected biomechanical properties of the eyes due to surgery or any other ocular procedure.


  1. Measurement unit: millimeters of mercury (mmHg)
  2. Measurable IOP range (mmHg): 7-50
  3. Possible fluctuations in IOP value readings:
  • in the range of 7-23 mmHg: ±2
  • in the range of 23-50 mmHg: ±5
  1. Coefficient of variation (CV): ≤8.1%
  2. Display precision (mmHg): 1
  3. Display type: LCD
  4. Maximum IOP diagnostics time: 2 seconds
  5. Power supply unit: two 1.5V batteries of the standard AAA, R03 size
  6. Maximum power consumption during the procedure: 100 mA
  7. Device dimensions (mm):
  • 173 x 27 x 21 (length, height, and width, respectively)
  • 88 g in weight (including two batteries)
  • Operating conditions:
  • optimal temperature range: between +10°C and +35°C
  • relative humidity level: up to 80%
  • optimal atmospheric pressure range: 630-800 mmHg
  • Storage conditions:
  • optimal temperature range: between -50°C and +40°C
  • maximum relative humidity: 98% (provided that the temperature is +25°C)
  • Service life: 5 years
  • Intraocular Pressure Tonometer 510 K 190382 FDA cleared



FAQ – Tonometer (tonopen)

Q. What is the normal eye pressure range measured by a tonometer (applanation tonometer)?
Ans: The normal eye pressure range measured by a tonometer is 10 to 21 mm Hg.


Q. Does a tonometer touch your eye?
Ans: When it comes to measuring eye pressure, the tonometer only touches the eyelid without any direct eye contact.


Q. Can I buy a tonometer (applanation tonometer)?
Ans: If you are a healthcare professional and work in a healthcare setting, you can buy this device.


Q. What is the cost of a Tonopen or tonometer eye pressure measurement device?
Ans: The price of a Tonopen (applanation tonometer price) is $2900. You can buy it from Almagia International.


Q. What is normal pressure in the eye?
Ans: The average human eye pressure is approximately 15 mm Hg. On the other hand, the range of normal eye pressure is much higher. Around 90 percent of people have eye pressure between 10 and 21.


Q. What is good eye pressure for glaucoma?
Ans: According to studies done in the United States, the average intraocular eye pressure is between 15-16 mm Hg.


Q. Which tonometer is best?
Ans: The Easyton Tonometer, which is FDA Approved, is the best for Eye Pressure Measurement.



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