Image Capture
The Scout Topographer's secret of proper alignment is in the cone. A slight protrusion on either side of the cone houses a patented corneal vertex detector system. Position the unit too close or too far and image capture just can't happen. Only when the system detects the vertex exactly in the right position does image capture automatically occur. Vertex, relative to the center of the cornea, is clearly marked on the map. Reproducible images are the norm, not the exception.
Data Transfer
Data is automatically transferred through the docking station to the computer via the USB port. Images are quickly processed with the Scout's 32 bit software
Some have questioned the repeatability of a portable topographer. This is a fair question considering other attempts at portable topography. The Scout has a built in "Repeatability Check" to put your mind at ease. Once you have captured and processed a minimum of three maps of the same eye, you may have the system perform a repeatability check (either manually or automatically). Any differences between the maps are graphed in diopters. If a map deviates too much from the others, you are instructed to delete it.
The example below compares three images taken a few minutes apart. The report on the left indicates the repeatability between the maps is plus or minus 0.09 hundredths of a diopter. A quick look at the graph shows that image one is the "map in the middle".
Alignment is seen on the LCD screen.
