The first of Occuity's revolutionary handheld optical ophthalmic devices, the PM1 allows both clinicians and technicians to take corneal thickness measurements quickly and easily.
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Simple to use, the PM1 is held in front of the subject’s eye at a comfortable working distance. Our advanced Precision Optical Systems intelligently aligns with the eye and, once initiated, automatically takes a measurement. Scanning at ~200Hz for just a few seconds, the PM1 captures multiple readings before clearly displaying the average of these results along with the standard deviation (variability) figure.
There is no risk of infection and no need to anaesthetise the eye, making the whole process much more comfortable for the operator and subject.
Features & Benefits
The Occuity PM1 will provide the measuring and non-contacting capabilities of existing optical desktop devices at a price point comparable to the handheld contacting ultrasound devices.

Non-contact
A better customer experience
The PM1's non-contact capabilities make it totally pain-free and a much better experience for the customer.
Accurate
Measure Corneal thickness, accurately, reliably and repeatably
In-house, testing shows the Occuity PM1 will be capable of delivering reliable, repeatable measurement with accuracy typically within +/- 5 microns.
The PM1 will be undergoing clinical trials and CE certification in 2021.

Handheld
Desktop capability, handheld utility
The PM1’s compact design will make it easy to move and store. You can use it handheld or, if you prefer, in a slit-lamp chinrest cradle making it perfect for both clinical and non-clinical settings.
Fast
Results in just a few seconds
The PM1 utilises our patented Precision Optical Systems technology to align with the eye and measure corneal thickness in just a few seconds. With one touch, the PM1 captures 200 scans each second before instantly providing an averaged measurement.

Easy to operate
Intuitive design means training takes just a few minutes
The PM1’s touchscreen interface has been thoughtfully designed making it easy and intuitive to use. Clinical staff and technicians can become proficient with just a few minutes of training.
Safer
Both for the operator and the customer
With its generous working distance, the PM1 never touches the eye – removing the potential risk of spreading infections and accidental damage to the cornea. The PM1's non-contacting capability also enhances COVID-19 safety.


No consumables
No cleaning, No waste, No waiting
Removing the need to contact the eye, removes the need for anaesthetic eye drops, waiting and cleaning times. This reduces costs, waste, downtime and the risk of damaging equipment through cleaning.
Wireless Charging
Ready when you need it
The Occuity PM1 will always be ready thanks to the innovative wireless charging dock. Once placed back on the cradle, the battery will charge automatically. The cradle also contains a built-in calibration artefact.

Cost Effective
Desktop Performance, Handheld Pricing
Enjoy the accurate measuring and non-contacting capabilities of expensive optical desktop devices at a price point comparable to existing contacting ultrasound devices.
Exclusive Launch Offer
Register your interest today for our exclusive launch offer
The Occuity PM1 Ophthalmic Series Pachymeter is planned for launch in 2021. To ensure you are one of the first to benefit from its groundbreaking technology and to enjoy our exclusive launch offer - with no commitment - express your interest today.
FAQs
How does a pachymeter work?
The Occuity PM1 pachymeter uses an optical technique which means it is completely non -contacting, unlike existing invasive ultrasound pachymeters, which have to directly contact a patient's eye. The measurement principle is a called a confocal scan – a tightly focussed beam of invisible light is scanned through the cornea and the reflections are detected and analysed to determine the thickness of the cornea.
Who can operate the Occuity PM1 pachymeter?
As the PM1 is non-contacting and cannot hurt the patient, it can therefore be used by a wide range of operators both clinician and technicians. It is easy to use thanks to it’s intuitive interface and can be taught in mere minutes.
What price-range do you anticipate the device will be in?
We intend that the price will be competitive with the existing ultrasound meters but will have many significant advantages, such as the fact it is non-contacting, provides a better customer experience, uses no consumables and is safer and easier to operate.
What practice environments do you anticipate Occuity PM1 pachymeter will benefit the most?
Most practice environments would benefit from a pachymeter, primarily in order to better understand the patient’s risk of glaucoma. The Corneal Centre Thickness (CCT), can affect the validity and accuracy of the IOP (intra ocular pressure) measured by the tonometer. Knowing the CCT will allow clinicians to understand if their tonometer is actually under or over estimating the IOP. Many clinicians also make the mistake of not knowing what their tonometer assumes corneal thickness to be. Most non-contact tonometers assume a corneal thickness of 550 microns, whereas the Goldmann assumes a thickness of 520 microns.
If a practice is involved in Glaucoma shared care, for example, they should measure CCT and provide this with their reports, along with IOP and sometimes ‘corrected’ IOP.
Patients with thinner corneas are at a higher risk of glaucoma as well, so understanding the risk factors is important.
However, there are also other circumstances where CCT may be useful, such as detection of Fuch’s endothelial dystrophy in post cataract patients, detection or progression of KCC (Keratoconus) or other corneal ectasia’s and also assessing the stability of corneal grafts.’
It takes just a few seconds – is this for one reading or multiple? How many readings are required per eye?
The meter actually scans at ~200Hz so collects many scans each second. So multiple readings are collected but the result is displayed as the average of those along with the standard deviation (variability) figure.
How does a pachymeter work?
The Occuity PM1 pachymeter uses an optical technique which means it is completely non -contacting, unlike existing invasive ultrasound pachymeters, which have to directly contact a patient's eye. The measurement principle is a called a confocal scan – a tightly focussed beam of invisible light is scanned through the cornea and the reflections are detected and analysed to determine the thickness of the cornea.
Who can operate the Occuity PM1 pachymeter?
As the PM1 is non-contacting and cannot hurt the patient, it can therefore be used by a wide range of operators both clinician and technicians. It is easy to use thanks to it’s intuitive interface and can be taught in mere minutes.
What price-range do you anticipate the device will be in?
We intend that the price will be competitive with the existing ultrasound meters but will have many significant advantages, such as the fact it is non-contacting, provides a better customer experience, uses no consumables and is safer and easier to operate.
What practice environments do you anticipate Occuity PM1 pachymeter will benefit the most?
Most practice environments would benefit from a pachymeter, primarily in order to better understand the patient’s risk of glaucoma. The Corneal Centre Thickness (CCT), can affect the validity and accuracy of the IOP (intra ocular pressure) measured by the tonometer. Knowing the CCT will allow clinicians to understand if their tonometer is actually under or over estimating the IOP. Many clinicians also make the mistake of not knowing what their tonometer assumes corneal thickness to be. Most non-contact tonometers assume a corneal thickness of 550 microns, whereas the Goldmann assumes a thickness of 520 microns.
If a practice is involved in Glaucoma shared care, for example, they should measure CCT and provide this with their reports, along with IOP and sometimes ‘corrected’ IOP.
Patients with thinner corneas are at a higher risk of glaucoma as well, so understanding the risk factors is important.
However, there are also other circumstances where CCT may be useful, such as detection of Fuch’s endothelial dystrophy in post cataract patients, detection or progression of KCC (Keratoconus) or other corneal ectasia’s and also assessing the stability of corneal grafts.’
It takes just a few seconds – is this for one reading or multiple? How many readings are required per eye?
The meter actually scans at ~200Hz so collects many scans each second. So multiple readings are collected but the result is displayed as the average of those along with the standard deviation (variability) figure.
Image Gallery
Comparison
Occuity PM1 - Projected*
Technology
Ultrasound
Optical
Contact
Multiple Contact of Cornea
Non-Contact
Existing Handheld Pachymeters
Measurement Time
Full Measurement in seconds
Several Minutes
Risk
None
Risk of accidental corneal damage & infection transmission
Cleaning
No clinical cleaning required
Clinical cleaning required between every patient
Consumables
None
Anaesthetic drops, cleansing wipes, replacement probes
Operators
Clinicians & Technicians
Specialist Trained Clinician Only
Training
Minutes
Specialist Training Required
Display
TFT Touchscreen Design
Generally Basic LCD Screens
Usage Location
Clinic, Front Office, Mobile
Clinic