Table 1.
Features of non-mydriatic desktop fundus cameras.
| Canon CR-2&AF |
Center Vue DRS | Forus Trinethra | Nidek AFC 330 |
Topcon TRC NW400 |
Zeiss Cirrus 600 |
|
|---|---|---|---|---|---|---|
| Dimensions/weight |
305 × 473 × 500 mm 15 kg |
580 × 550 × 330 mm/19 kg | 520 × 420 × 400 mm/11.1 kg | 316 × 518 × 579 mm/29 kg | 383 × 660 × 700 mm/18 kg | 408 × 480 × 680 mm/33 kg |
| Light source/power supply |
Observation-IFR LED Flash-white LED/AC 100–240 V |
– Power cord |
Observation-IFR LED/AC 100–240 V | Xenon flash lamp 300 W |
– AC 100–240 V |
Xenon flash lamp 80 W AC 100–240 V |
| Pupil size | 4 mm (3.3 for small pupil mode) | 3.8 mm | 4 mm, 3.3 mm small pupil mode |
4 mm 3.3 mm for small pupil mode |
4 mm 3.3 mm small pupil mode |
|
| Stereo photography | – | Yes | – | Yes | Yes | Yes |
| Camera/monitor/optical resolution |
24 MP, EOS camera 3″ colour LCD built-in monitor. High resolution |
10.4 touch screen colour display. 5 MP |
3 MP |
Integrated CCD camera 8.4″ tilting colour touch screen 12 MP |
10″ touch screen monitor. High resolution |
5 MP |
| Fixation | Internal fixation LED Dot matrix | 7 internal LEDs | LED 9 point | 9 internal LED fixation Dot matrix | Internal and external targets | |
| Field of view | 45° | 45° | 45° | 45° | 45° | 45° |
| Mode/image type | NM/digital colour, red-free, cobalt, FFA and FAF | NM/digital colour, red-free and IR | Digital colour, red-free | Digital colour, red-free, green, blue, FAF and IR (FFA and ICG in Cirrus 800) | ||
| Image capture | Stand alone | Stand alone | Stand alone | Stand alone | Stand alone or works with capture software | Stand alone |
| USFDA approval | Yes | Yes | Yes | Yes | Yes | Yes |
| Special features | Autofocus provides auto functionality with contrast enhancement |
Captures both eyes in one single field. Automatic alignment using two pupil cameras. Motorized chinrest. Multiple field acquisition. Autofocus adjustments (−15 to +15 D). |
Works on any Windows-based laptop |
Fastest. Anterior eye monitor. Auto-stereo pairing, auto panoramic view. Low flash intensity and quiet shutter sound. |
Fully automatic. Auto-stereo, low flash DICOM compliant. Remote access connectivity. ImageNet data system. |
Multi-modal imaging, with OCT. Advanced algorithms. With accurate Fovea finder and auto-centre. The Data cubes with previous visits provide comparisons. |
IR infrared, MP megapixel, FFA fundus fluorescein angiography, FAF fundus autofluorescence.