Handheld Fundus photography is difficult–both in the efforts it takes to create the actual camera, and in the ways which it’s difficult to actually take photos with it. All those mirrors, flashes, lenses, and storage components all built into the same device require some design ingenuity, and then at times even with the proper device it can still be a challenge. NIDEK’s NM-200D is earthly proof of these problems and its immediately noticeable. The whole design as an idea just isn’t practical in these modern times– carrying a camera in one hand and a way to view it in another seems horribly antiquated. The 200D’s handheld camera piece isn’t all bad; quite comfortable/light actually- and it’s fairly easy to take photos with, especially compared to the slimmer and much more ergonomic Microclear PFC-1. However the handheld camera isn’t exactly cordless- you’re confined to the giant monitor right next to you which isn’t so ergonomic and easy. While the monitor is massive; providing a large (although slightly pixelated) image review source, it’s also: heavy, large, awkward, and everything else that doesn’t rhyme with portable. Yes, the 200D goes where you go (we do call it portable)- it just seems a bit excessive- in the same way older American cars left feet of room between the body and the radiator- for what purpose besides lack of innovative capability? And then there’s the CCD camera which produces a dismal 1.5 megapixels. This isn’t terrible considering the brand new Microclear offers only 2 megapixels, however we don’t recommend becoming a retinal specialist with one of these.
OUR TAKE: It may be a fair choice for mobile clinics on a budget- however its contingency of always being connected to a viewing source really drags it down to be less mobile than you might think.
#1. 1.5 Megapixel CCD
The NM-200D features a self-contained 1.5 megapixel CCD camera, which offers up to a 30 degree view of the Fundus. The black/white observation viewfinder camera allows for easy alignment of the optic nerve head, and then easy capture and data transfer to the attached monitor.
#2.10.4" Color Touch-Screen
Although it’s neither compact nor light, the NM-200D’s attached color monitor stretches nearly 10.4 inches in diagonal length– offering a large surface for image capture review. It’s also a nice touch for patients to immediately see your work. Touch-screen capability allows easy storage, exporting, zoom, and other adjustment features.
Yes, we were able to capture decent images in fully-lit rooms, however it’s best to at least lower the pre-test room lights.
4.0mm in diameter. The 200D does get harder to align with the ONH when pupils restrict.
Nope. The NM-200D has internal viewing software included. You can however connect the portable monitor to an external computer via USB 1.1 connection, or pull the built-in flash card from the monitor unit for viewing on other devices.
30° is the maximum field of view for a single image.