Hi Stuart,
I would like to submit some photos but they're mostly the garden variety
conditions. I'm hoping to capture some exotic, rarely seen condition so
it's worthwhile :-)
I'm concentrating on my CRA portfolio so I can belong to OPS officially.
Aissa
On Feb 13, 2017 3:02 PM, "Stuart Alfred" <stuart.alfred@xxxxxxxxx> wrote:
Aissa,
I hope you submit some of those top shelf images to this year's OPS
Scientific print exhibit contest. Show off the skilled work our members
perform on a daily basis.
Stuart
Stuart Alfred / 317-517-9455 <(317)%20517-9455> / stuart.alfred@xxxxxxxxx
Ophthalmic Imaging Specialist
Board of Education - OPS {Equipment Chair} - www.opsweb.org
www.stuartalfred.com <http://www.stuartalfred.com>
On Thu, Feb 9, 2017 at 7:48 PM, Aissa Dirawatun <aissa9400@xxxxxxxxx>
wrote:
I agree with all the pointers Michael mentioned especially pupil size.
Using 50 degree lens, pupil must be at least 6mm to get a decent photo in
my experience. I'm able to get fair photos on a 4mm pupil with the 30
degree. Smaller pupils (hard to dilate pts) would only give me an okay ONH
shots.
We still use FF4's and FF450's with great fundus photo results. It's all
in the technique, patient eye anatomy & cooperation.
:-)
Aissa
On Feb 9, 2017 3:21 PM, "jmc eye photo" <jmceyephoto@xxxxxxxxx> wrote:
richard
note pupil size on all patients where the shadow occurs.
measure the outer diameter of the projected view lamp and discover the
zeiss 450 requires maximal patient dilation to work effectively and
consistently.
the shadow is the edge of the iris slightly blocking the view lam and
flash.
image 2 is centered in the pupil , thus, more evenly illuminated
darker pigmented pupils dilate less and really challenge the ability to
uniformly illuminate a retinal fundus.
we as photographers have no control of patient saccadic movements or
shifts in patient position after blinking.
best suggestion is a nonmyd with 4mm+ dilation for your patient.
how many people still use zeiss 450 or topcon 50ex out there these days.
no one seems to want to learn how to use them anymore
michael
john michael coppinger
jmc eye photo
www.jmceyephoto.com <http://jmceyephoto.com>
On Feb 9, 2017, at 3:03 PM, Richard Morrone <rmorrone@xxxxxxxxxxx>
wrote:
Has anybody seen the Zeiss FF450+ artifact in the attached image? Note
the shading that's arcing across temporal side of the image on the left.
The only difference between that and the image on the right is another
press of the trigger -- nothing else in the room has moved.
It's random, unpredictable. The shading might come halfway across the
image or a fourth of the way. I might get 1 or 4 at a time, which means
more photos, more flashes at the patient. It can happen during Colors,
R-F's or FA's. It shows up darker with poorly dilated eyes.
I've had two different Zeiss service technicians out recently to address
this, and one thought that it might be a part of the filter mechanism not
getting out of the way and that it would be an expensive job to replace
it. This same issue occurred 5 years ago, and the Zeiss tech did something
simple that cured the problem. Neither he nor I can recall what he did.
Any suggestions?
Thanks,
Richard Morrone, C.R.A.
<Artifact.PNG>
