[optimal] Re: artifact issue
- From: "Verdick, Randall E" <randall-verdick@xxxxxxxxx>
- To: "optimal@xxxxxxxxxxxxx" <optimal@xxxxxxxxxxxxx>
- Date: Tue, 26 Nov 2013 16:11:16 +0000
The images look like spots on the lens, but it could be an external light
reflection from a ceiling light or other light. I would try a good lens
cleaning, and check for room light reflections??
Randall Verdick, FOPS
Educational Media Coordinator
Department of Ophthalmology
University of Iowa
From: optimal-bounce@xxxxxxxxxxxxx [mailto:optimal-bounce@xxxxxxxxxxxxx] On
Behalf Of Darrin Landry
Sent: Monday, November 25, 2013 6:29 PM
To: optimal@xxxxxxxxxxxxx
Subject: [optimal] artifact issue
Optimalers:
I have a practice with an artifact problem. They are using a Topcon 50X camera.
At first blush it looks like a typical tears on the objective lens issue, but
fervent cleaning of the lens didn't fix the problem, and it can't be viewed
either from the front or through the minus diopter lens setting. I have asked 5
times if they are sure they cleaned the lens well.
I am assuming it's something on the objective lens, as it's a white artifact
(I am troubleshooting this over the phone, as they are very rural, and no
chance I will be in their neck of the woods anytime soon. If I am, something
has gone terribly wrong in my career).
I am thinking it's on the anterior surface of the objective lens, but it's not
easy talking someone through dismantling the objective lens over the phone.
Changing filters, magnification and focus doesn't change the appearance of this
artifact. This came on rather sudden as well- not a slow growing problem.
I have attached the example they sent me- if anyone has any ideas, thoughts,
etc, I welcome your input.
Thanks in advance
Darrin
Darrin Landry, CRA, OCT-C
Bryson Taylor Inc.
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