The Easyfield by Oculus is no doubt the world’s smallest, most compact full-threshold perimeter available today. Not only that, it’s actually quite pretty to look at resembling an Apollo-esque spaceship shape and likewise fairly mobile (like one) too. It is Oculus’ entry-level perimeter, however it does a lot of things that its main stream competitors do too- like 30 degrees of testing, identical printout formats (to Zeiss), and complete full threshold (24-2) perimetry all without taking up more than a single chair at the pretest table. The Easyfield communicates with an external console which is indeed small, however makes the world’s smallest perimeter a unit which lacks “all-in-one” capability- forcing the operator to be focused on the console and the patient. The user interface hosted on the console is fine, however it’s not a traditional operating system coming across rather plain and straightforward; it is made in Germany after all. After a week’s use of the Easyfield, it will make you feel less dependent on the giant static-perimeters you’re used to; it will make you feel as if the Easyfield is a minimalistic option that offers just as much capability with an airy presence.
OUR TAKE: A lightweight and airy option to full-threshold perimetry at 30°. It holds its own (for its size) when placed next to a giant Humphrey machine.
#1. Small Yet Equipped
The Oculus Easyfield is considered to be the world’s smallest full-threshold perimeter, and we would agree with this. That award does not however take into account the console or computer that is required to run the visual field, which of course takes up room next to the unit on the pretest table. Regardless of that minor annoyance, the Easyfield takes form of a Zeiss Matrix 715 competitor, with both screening and full threshold capabilities all with being fairly compact. The Easyfiled also uses “big boy” Goldmann stimulus dots instead of FDT (Welch Allyn) rays, which seem to be a more precise perimetry method (although we’ve never conducted a study) and allow it to compete with other large machines such as the HFA series from Zeiss.
#2. Competent Perimetry
Most visual field screeners, or those ergonomic enough to transport to mobile environments, aren’t incredibly capable when it comes to full threshold perimetry. However the Easyfield offers an incredibly compact size (as mentioned above) and full threshold perimetry up to 30° acting as a screener and a Goldmann stimulus field in the same device. It’s resume is quite impressive utilizing a LED grid with 135 xed test locations for testing of the common 10-2, 24-2 and 30-2 patterns; allowed employing classical 4-2 dB staircase strategies, using two reversals in the patient’s answer to deliver a threshold value.The Easyfield also offers Fast Threshold bracketing strategies using variable steps and taking advantage of already measured locations, and their own proprietary SPARK testing which we go into detail below.
#3. SPARK for Shorter Tests
Proprietary to Oculus, The SPARK strategy is based on statistical relationships between threshold values corresponding to different locations in the glaucomatous visual field, derived after analyzing more than 90,000 perimetric examinations. The large amounts of available statistical data make fast and very precise measurements of the threshold values in the central visual eld possible. The ingenious modular structure of the method in four phases allows a diverse use of the SPARK strategy in the clinical practice. The result is faster and more stable threshold tests providing improved diagnostic abilities.
Yes, but it will depend on your EHR. The Easyfield will connect to your practice-wide network.
This model does not come with a standard chin rest, however an accessory can be ordered. This accessory will need to be bolted into the pretest table.
Essentially. The Oculus Visual Field printout is very similar to a Full Threshold printout delivered from a Zeiss Humphrey machine.
With Oculus’ SPARK tests, a full threshold exam can be completed in less about 3 minutes per eye. Screening tests take around 1.5 minutes per eye.