Imaging Dislocated Lens https://www.opsweb.org/forums/posts.aspx?topic=376172 Sun, 19 Jul 2026 18:27:48 GMT Sun, 18 Mar 2012 14:26:39 GMT Copyright © 2012 Ophthalmic Photographers' Society Imaging Dislocated Lens https://www.opsweb.org/forums/posts.aspx?topic=376172 https://www.opsweb.org/forums/posts.aspx?topic=376172
The lens is completely dislocated and is free floating in the vitreous. He wants images of the lens resting on the retinal surface as well as some images of it near the pupil.

And of course he wants to publish the case.

He and I both have a couple of ideas and we brain-stormed them but I have my doubts as to whether they will work.

So, I'm reaching out to the "experts" in the group.

Thoughts?

Thanks in advance for your help,
bob
]]> Fri, 2 Mar 2012 14:11:12 GMT https://www.opsweb.org/forums/posts.aspx?topic=376196 https://www.opsweb.org/forums/posts.aspx?topic=376196
What a fun project!  I'm sure the patient is going to love shaking their head around to get these images!  I would start by trying them both on your fundus camera and just changing the focus.  I have one that was done on the Optos while it was resting on the retina and it came out well.  I didn't have the patient shake his head so it was in the far inferior periphery.  With a traditional camera it may be difficult to get to.  

Good luck!

Sarah
]]> Fri, 2 Mar 2012 15:04:18 GMT https://www.opsweb.org/forums/posts.aspx?topic=376201 https://www.opsweb.org/forums/posts.aspx?topic=376201 I hope you like a challenge! Anyway you look at it, both you and the patient will go through some gymnastics to move the lens into position.

Do you have a hand-held fundus camera? They're not really publication quality images, but would allow you to image the patient lying prone. You can also get beneath them while they're in a head down position to get it in the pupil.

On a few occasions, we'd have the patient lie down with their head in a position to get thee lens to move and then quickly move them to the fundus camera and/or the slit-lamp to hopefully get the lens before it moves out of position - thus the gymnastics. Of course pre-setting all cameraa & exposure controls beforehand helps you capture quickly.

Last time I did this was with a free floating cyst. Have fun and let us know how you make out.

]]> Fri, 2 Mar 2012 15:13:14 GMT https://www.opsweb.org/forums/posts.aspx?topic=376307 https://www.opsweb.org/forums/posts.aspx?topic=376307 Bob,

I looked for some examples of similar cases I've done. Here's one of a free-floating cyst and one of a dropped nucleus.

I had another cyst with both slitlamp photos of it within the pupil and one with it sitting on the retina after have the patient hold their head in different positions, but can't find it right now.

I also have photos of a dislocated Ridley lens (first IOL made of glass) somewhere in my collection...

In all cases we had the patients recline to move the object into position

This is a good opportunity to try out the image upload feature. Let's see how this works.

tim

]]> Fri, 2 Mar 2012 17:51:24 GMT Dislocated IOL https://www.opsweb.org/forums/posts.aspx?topic=376807 https://www.opsweb.org/forums/posts.aspx?topic=376807
A wide field fundus camera makes imaging a dislocated IOL quite easy. I think the wide field image shows the IOL in relation to the fundus. I tried the same with the widest setting of a fundus camera and I just could not see the IOL, I kept ending up focussing thru it, but could not well appreciate the IOL itself. Maybe it was the location of the IOL? 
If you have a Retcam or Optos at your availability, they would be a good place to start. 

Cynthia
]]> Sat, 3 Mar 2012 16:13:59 GMT https://www.opsweb.org/forums/posts.aspx?topic=378392 https://www.opsweb.org/forums/posts.aspx?topic=378392 Great input so far.  Attached are two marginal examples done with a traditional fundus camera.  Depending on where you get the IOL to land inside the globe, you'll have to deal with all the associated challenges of peripheral imaging.

Hopefully the pt is up for the "fun" and well dilated; and don't let the providers gunk up the eye before you get to shoot!

j-

]]> Tue, 6 Mar 2012 14:15:41 GMT https://www.opsweb.org/forums/posts.aspx?topic=378435 https://www.opsweb.org/forums/posts.aspx?topic=378435 Hey All,

Thanks for all the feedback (nice images jim!).

We have an Optos so we decided that is our best option.

We'll try that and hope for the best.

I will try to post some images.

Thanks again,
bob

]]> Tue, 6 Mar 2012 14:46:47 GMT https://www.opsweb.org/forums/posts.aspx?topic=378473 https://www.opsweb.org/forums/posts.aspx?topic=378473 Bob,

 

I'd try having the patient look down for a few seconds and then get the head in the head rest really quickly. Hopefully the lens will float by the pupil so you can get a photo. If the patient still ahs vitreous then the "float" time will be pretty  quick, but if the vitreous has been removed things will move pretty quickly.

 

Dennis

]]> Tue, 6 Mar 2012 15:17:32 GMT https://www.opsweb.org/forums/posts.aspx?topic=378480 https://www.opsweb.org/forums/posts.aspx?topic=378480 Dennis,

That's what I did in the series of images I posted above. You can see the free floating cyst in the vitreous moved etween successive slit-lamp photos. In the time it took to move the beam from right to left within the pupil the cyst dropped quite a bit. It's like trying to photograph a sunset. But unlike a sunset, you get the chance  for a "do-over" by having the patient move their head again.

]]> Tue, 6 Mar 2012 15:24:36 GMT https://www.opsweb.org/forums/posts.aspx?topic=386134 https://www.opsweb.org/forums/posts.aspx?topic=386134 Sun, 18 Mar 2012 15:26:39 GMT