The Medmont E300 U Corneal Topographer does more than just basic topography, and rivals itself with the likes of the Oculus Keratograph– an instrument we’re rather fond of. It all seems rather impressive: the 32 placido rings, the largest capture range of any topographer, along with advanced tear film software coming standard and a plethora of axial map options. The price is especially attractive as it would appear that Medmont (a lesser known Australian company) is attempting to gain more traction with diagnostic devices. It positions itself somewhere in the advanced topography spectrum, however is also reasonably attainable for the more medically focussed ODs. It’s software options allow the fitting of nearly every contact lens (including RGP), and nearly unsurpassed accuracy with 9600 measurement points per reading. Medmont’s viewing software, although external, is superb with great resolution on the axial maps; progression analysis comes easy with a split screen displaying four images at once and the contact lens fitting analysis supports the fitting of Multi-Curve, Toric, Custom Designed, and Sclerals. The entire unit is also fairly simple to use– the set-up takes a while, however once calibrated the instrument’s fully automated image capture does everything once you’ve aligned the instrument with the 3D focussing target.
OUR TAKE: The Medmont E300 is a terrific corneal topographer that lacks more in name recognition than ability. When compared to other corneal topographers, the Medmont delivers on complexity, intuition, and on price.
#1. Limbus To Limbus Coverage
When we say Limbus to Limbus, we mean: The Medmont E300 offers the largest capture area of any Placido Ring Topographer on the market, providing full Limbus to Limbus coverage. Based on an unobtrusive compact cone design incorporating precision optics and using 32 rings with 9600 measurement points, the E300 U provides detailed topography data over a massive (relatively speaking) area of the cornea; coverage extends from a minimum ring diameter of 0.25mm up to 14mm when using Composite Capture. To give some contrast, the Zeiss ATLAS 9000 has 22 placido rings, the Tomey TMS-4 has 25, and the Oculus Keratograph has 22. All major topographers do however claim accuracy within 0.1mm. Regardless, the Medmont comes loaded, and is fully equipped for detailed assessment of corneal pathologies and detailed contact lens fittings (see below).
#2. Contact Lenses For Days
Given the Medmont’s 32 placido ring super dome, advanced contact lens fitting comes natural. Automatic fitting of RGP lenses, including multiple peripheral curves, toric, aspheric and conic designs is quickly and easily performed. An expandable database of standard lens designs is included. Manual adjustment and repositioning of the lens can be performed, with the results presented on a simulated fluorescein display and a tear film clearance graph.
#3. Image Capture Isn't A Sweat
Most modern day topographers are easy-to-use and require only minimal operator experience. The Medmont is no exception, despite an external display and software, the E300’s automated image-capture takes images automatically with a simple alignment system and progressive storage of the four best images. Even when we attempted to fool the Medmont by intentionally misaligning the instrument, its advanced analysis software corrected defocussed and off-centered images and scored the images providing us information on the image quality.
#4. A Modern Display & UI
The user interface on the Medmont, is like most UIs, somewhat difficult to get used to and not fairly straightforward– it will take some getting used to. Regardless, of all extern topography software we’ve tried recently, we like the Medmont viewing system a lot. For starters, the resolution of the simple axial maps are outstanding – we hate looking at axial maps that look as if they were drawn by a four year old. The Medmont delivers something that more resembles a sharp meteorological radar rather than a poorly colored map (did we mention we like that?). Additionally, the Medmont offers a split-screen view of four different images at a time, examples of multiple images of the same type to identify trends, a diference display and a combination map which can presented in that four-view-mode (e.g. axial power, tangential power, elevation and video image) of one examination. It also comes with Zernike analysis software standard including analysis of corneal height data and wave front error.
It will, but only if you’re using the Medmont Studio (which comes with this unit but the way). Medmont Studio should connect to your EHR, but only if it stops in Medmont Studio first. This is kind of annoying; we long for the days where you just take the SD card out, or connect to the WiFi network.
Yes, a specific instrument power table is included, with computer (PC) running Windows XP and Medmont Studio software.
We would recommend a day of training for all staff members using this unit. as mentioned above, alignment is hardly difficult, however there may be a small learning curve associated with getting familiar with its software. Don’t worry, we’ll send the user manual.
Since it comes with a double-wide instrument table, you’ll need a decent amount of room in the pre-test room. The actual instrument is quite small relative to most topographers.