Where can I learn about slit lamp imaging
Courses on slit lamp imaging are run regularly by the OPS (www.opsweb.org) and OIA (www.oia.org.uk/ ) and Haag-Streit, through the local distributor, may also be able to help improve skills. Slit La...
- Why is back ground illumination considered essential
...two light reflexes. - slit images: the background illumination is required if the view through the slitlamp is to be reproduced on screen.
- Why should I purchase the CM900 or IM900 rather then a consumer camera
...ould be using consumer cameras. The lens systems on consumer cameras make the integration with the slitlamp optics very difficult. These cameras are no designed for use with other optical systems and...
- Can I upgrade my PB-Q to a BX900
It is possible to upgrade the old version of the photo slitlamp PB-Q900 to the new digital photo slit lamp BX900. The BX900 allows you to capture high resolution images (8 million pixels) using the ...
- Can EM 935 software run on a touch panel pc
The processing power required by the EM935 is minimal and therefore any PC or laptop should be capable. If the Firewire port is not powered (i.e. on most laptops) then the power supply for the camer...
- Can EM 935 software handle measurement of endothelium with guttata
Measuring eyes with guttata is a challenge for all specular microscopes as the software has trouble differentiating the difference between a cell and guttata. The best and fastest method is to measur...
- What is the EM 935
EM935 is a slit lamp mounted endothelium microscope designed to make a rapid, automatic analysis of the corneal endothelium and conveniently fits onto most slit lamps. Image capture is automatic and a...
- Can the EM935 do any other high magnification imaging (i.e. lens pathology)
The EM935 has been designed specifically for specular reflectance images of the corneal endothelium. As it is around 200 x magnification it is not much used for anything else. In theory it could be us...
- Can we place the EM935 on the left hand side
No. This is not possible because the software is programmed to search for the corneal reflex on the left of specular endothelial reflex.
- Possible to use the EM935 for corneal grafts
The EM 935 is designed to measure the corneal endothelium ‘in vivo’ and as such has not been used on graft donor material or eyes. There are instruments available for this specialized wor...
- Can the EM935 do any other high magnification imaging (i.e. lens pathology)
The EM935 has been designed specifically for specular reflectance images of the corneal endothelium. The magnification of ~200 x limits the use for other types of imaging. Some users have expressed...
- Can I use longer lengths of Firewire cables
The maximum cable length is 5m. Longer lengths will reduce the transfer speed and this will cause problems. Always use a good quality cable.
- Error "This unlicenced copy of IMAQ Vision may be used for demo purposes only" comes up
Please install the runtime license from CD. Look at Folder x:\Run-Time-License and start the Program vision61rte.exe
- Alignment mode, with slit on 0.2 no image does appear, but on 3mm it does
Base plate height is not set correctly. Possibly the wrong base plate used, contact our service department.
- Alignment mode holding hand in front of the lens image is grey
In Alignment mode the image on the screen should be black. If it is otherwise (grey) the sensitivity of the camera is not correct. Please contact our service department.
- In Alignment mode, slit does not become narrow but fades out
Check if the base plate/pin is well connected and unit is centered. If this is the case and you have still problems, please contact our service department.
- What is the accuracy of the EM935
The accuracy of the ME 935 is defined
as 747Pix/mm +/- 2.5%.
Best reproducibility is achieved if the
endothelium images are analyzed in a semi automatic manner. This means the
images are t...
- Is it possible to measure the endothelium through swollen or opaque corneas
The cornea is part of the optical system that provides the endothelial image to the specular microscope. If the cornea is compromised then this will affect the image quality. It may still be possible ...
- Can I upgrade my PB-Q with a digital camera back?
Yes, an upgrade the PB-Q to digital is possible however we have seen problems with the very old control unit. Upgrade on this is trial and error. Old units may accidentally flash. Upgrade of the later...
- Can I connect CM900 to my BC900
This is not possible, only mini mount cameras like the Toshiba can be fitted. Upgrade from the BC900 to the BD900 would not be economical as we need to replace the microscope as well as the microsco...