New type of indirect. Thoughts?

This forum made possible through the generous support of SDN members, donors, and sponsors. Thank you.

Bluesclera

Full Member
10+ Year Member
Joined
Aug 26, 2012
Messages
141
Reaction score
46
So saw this a few days ago, what are the general thoughts on this "Spectra Iris" indirect ophthalmoscope?

More info:
http://www.keelerusa.com/ophthalmic...ar-indirect-ophthalmoscopes/spectra-iris.html

Video demonstration:


Also nice site for recommended items for PGY2s
http://www.uic.edu/com/ophres/instruments.htm

Members don't see this ad.
 
It's smaller and more portable. Battery life is short. Not sure about the cost. Probably cheaper.
 
Oh, it looks nice I think it was listed at 1500 and after some institutional discount and reimbursement could be around 500 to 700. I just find a comparison, if battery life is the worst thing about it, it sounds like a good deal


Sent from my iPhone using Tapatalk
 
Members don't see this ad :)
The battery life is good, I wouldn't say its short all. Definitely lasts more than a full clinic day. The only thing is the nose piece which I had to add some pads for comfort. I have one for sale. Also a digital widefield and high mag lens. PM if interested.
 
How long do I have until I have to confirm - do you need to sell it pronto or could I think about it for a month?
 
Last edited:
I have one, it's a good indirect. The battery life is excellent, it can be months before you need to recharge it even with pretty good usage. The light is bright. With the LED, the light may be a little bit whiter than what you may be used to depending on the types of indirect you usually use. It is portable, so excellent for quick pre-op exams or inpatient consults.

It has a neck strap, but is a little bit heavy for me to keep on my neck for an extended period of time.

If you buy it from them, I think that they may give you a case as well and will repair it if you break it as a resident, in addition to the discount price.
 
There is one optical difference between the Spectra Iris and the larger indirect lenses which may cause issues if you're trying to examine a smaller pupil.

The spot size is controlled simply by an iris diaphragm. Reducing the size of the light has no effect on the proximity of the light/viewing axis. In the Keeler Vantage Plus, if you make the spot size smaller it will bring the light source closer to the binocular image source. On the Heine these can be independently controlled; spot size is not tied to light/viewing axis like in the Keeler (which is the best option of all three because you can maximize stereovision). Take a look at the following diagram for what I mean:

rNobvis.png


In picture A you won't have a view. If you had a Heine/Keeler Vantage you could do the maneuver in picture B. If you have the Spectra Iris you would have to resort to a different lens (ie 30D instead of 20D) or tilt your head.

This isn't necessarily a deal breaker, but it is one functional difference to know about.
 
Top