[optimal] Re: Optos
- From: "Paul Paquette" <dmarc-noreply@xxxxxxxxxxxxx> (Redacted sender "visualeys@xxxxxxx" for DMARC)
- To: optimal@xxxxxxxxxxxxx
- Date: Mon, 11 Aug 2014 13:35:05 -0400 (EDT)
My $.02, I agree with most of the banter but someone mentioned it's NOT as user
friendly as Std fundus cameras but I think that's coming from an experienced,
quality conscious Imager & it's just something different that you have to get
used to (it took me a while). A newbie or, dare I say, lazy photographer might
find it easier just to line up the pupil with circle until it turns green &
shoot rather than look thru eyepiece, align, focus, eliminate cresent & other
artifacts, refine etc...
Not a lot of adjustments can be made without seeing how the 1st image turns out
but just a few alignment suggestions include:
-Remove blue rubber faceplate as some noses may need to actually go inside the
bowl & rest on the metal plate below or against the "bump" in the plate (nose
may be partially imaged also).
-Turn head slightly to the outside & forehead as close as possible, sometimes
the chin needs to come back some, for gross alignment before doing fine
adjustments with remote. "+" & "-" until dot turns green & guide number under
image window is slightly to the minus side (should see eyelid shadow
approaching iris) esp with small pupils, IOL or post yag fiberous capsule.
-As mentioned, it's tough to get fingers into position to lift both eyelids &
if you can you may just be replacing the image of their eyelashes with an image
with your fingers. So lift their eyeBROWS & if necessary the patient can pull
lower lid down by pulling down on their cheekbone.
-Also mentioned was that you get wider images horizontally than vertically but
you can select "S" to get better views of the Superior field & "I" for better
views of Inferior views.
-Don't rely on the green dot going thru the center of the pupil. You can shoot
around cataracts & other vitreous pathologies by offsetting dot somewhere
closer to the periphery of the pupil & if you're shooting "S" field offset dot
inferiorly, "T" field offset nasally etc...
Ben -You may have been joking about the penny arcade version but actually
you're not too far off. The newest Optos "Daytona" is a much smaller, tabletop
version that the patient aligns their own head & eye & then the picture is
taken. Currently I think it only has color photos & AF modes, no FA etc. yet...
but you know it's heading that direction!!
Sorry these comments are a few days late. Just back from long vacation & still
catching up.
Paul
-----Original Message-----
From: serar <serarphoto@xxxxxxxxxxxxx>
To: optimal <optimal@xxxxxxxxxxxxx>
Sent: Thu, Aug 7, 2014 9:24 am
Subject: [optimal] Re: Optos
Hi, I concur too with what has beed said. They may want to call it the Obtuse
as it is a big devise. The patient head placement and fixation was not well
thought out. There is a lot of head holding and twisting. The blue pad is weird
and we may go without it. There are software issues too and they are slow to
respond to fixes. The good news is that there is a new version outfited with a
coin slot for the penny arcade.
Ben Serar
-----Original Message-----
From: Jim Perry
Sent: Aug 7, 2014 7:08 AM
To: optimal@xxxxxxxxxxxxx
Subject: [optimal] Optos
Our retinal practice is planning to purchase the Optos 200tx.We will demo it
for a month,with plans to add it as a second imaging device.We also have a
Topcon 50dx and 50 ix, which will be moved to our seldom used sattelite
office.I'd like to know what others experience and opinions are of the 200tx.
Thanks!
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