? for medical experts Re:unusual "cure" for blindn

Bill's forum was the first! All subjects are welcome. Participation by all encouraged.

Moderator: Available

Post Reply
User avatar
Shana Moore
Posts: 621
Joined: Fri Dec 28, 2007 10:42 pm
Location: Virginia

? for medical experts Re:unusual "cure" for blindn

Post by Shana Moore »

While this is kinda freaky cool that this can be done; although, it's also a rather odd procedure (she's apparently tried several other options). This woman's eye tooth was removed, adapted, and then implanted in her eye with a prosthetic lens. In reading the article, I had several questions pop up that I thought our medical experts might have a better understanding of the process...this is mainly curiousity..so if you have the chance.

http://www.cnn.com/2009/HEALTH/09/16/to ... index.html
The tooth and bone were then shaved and sculpted, and a hole was drilled into them to hold the prosthetic lens. Then the whole unit was implanted into Thornton's chest and left for several months, allowing the tooth and lens to bond. This was then implanted into her eye.
What exactly do they mean by "bond"? Does this step and the fact it's her own tooth help with any concerns around rejection? The eye tooth has pretty long roots (from jaw to orbital cavity, I believe)...Why are they specifically choosing this tooth? I'm assuming, for this to work, there are nerve endings that work fully, it's the actual eye that is damaged...so...as mentioned in the article, aren't there other less drastic (and expensive) options?

and lastly...these are mostly hypothetical (and me griping)...blindness is a horrible loss to someone who has had sight, but her biggest joy (next to seeing her new grandchild, which I can understand) is a friggin tv show?!?!??!! Why not accept the situation and adapt to it? She was considering suicide?..um...find other things in your life that you enjoy doing? Reach out and learn what services there are available to broaden your life instead of shrink it? (yes, I realize I am looking at this..ahem...as a fully visually functioning individual, but life is not so paltry to toss away because of a single loss..adapt and move on!)

rant off...and thanks for your time :roll: :wink:
Live True, Laugh often
Shana
User avatar
Jason Rees
Site Admin
Posts: 1754
Joined: Wed Nov 14, 2007 11:06 am
Location: USA

Post by Jason Rees »

Awesome!

And from a patient's perspective, loss of vision can be devastating to self-image, worldview, confidence and ability to care for oneself, much less anyone else.
Life begins & ends cold, naked & covered in crap.
User avatar
Bill Glasheen
Posts: 17299
Joined: Thu Mar 11, 1999 6:01 am
Location: Richmond, VA --- Louisville, KY

Post by Bill Glasheen »

OK, so I understand now.

The retina - the place where the lens focuses the image - was working. That's the inside surface of the back of the eyeball where the optic nerve is attached. But the surface of the eyeball was trashed. What to do? There's no place to mount a prosthetic lens if the surface of the eyeball is gone.

So... They take the tooth and part of the jawbone that it's attached to, and cut it out. They drill a hole in the tooth and mount the prosthetic lens in the tooth - probably with some "fibrin glue" (something I did research on years ago). Then they give the "wounded" tooth plus bioglue (basically a scab) a chance to heal around the prosthetic lens. After that, what they're doing is mounting the piece of bone with the tooth/lens and attaching it to the bone somewhere around the eye socket.

This is a pretty firm way to plant the lens. It isn't going anywhere. I'm thinking that this woman is going to have to move her head to see at a different angle. There's no eyeball per se with eye muscles attached, so you have a static lens mount. But it's better than being blind. It would be sort of like having to see the world through a camera held in front of your face. You turn the head to see in a different direction.

Indeed using your own bone means you don't have rejection. And in this case, the cuspid (eye tooth) is attached to this piece of bone.

Why would this woman want to commit suicide? Most severe illnesses or major surgeries are "trauma" to the body, and are followed by a type of PTSD-induced depression. In the data I review every day, most of the sick people are being treated for depression as well as their baseline illness. All I can say is don't criticize unless or until you've been there and done that. Do some volunteer work in a nursing home some time. Just being around these people can burn you out.

Why does television give her so much joy? Perhaps she otherwise has no life. Unfortunately this is true of most people. Also consider that it's more difficult (but not impossible) to teach an older dog new tricks. If she's a visually oriented person, has difficulty getting around, and is visited by very few people, then television would probably give her a lot of important stimulation.

- Bill
User avatar
Shana Moore
Posts: 621
Joined: Fri Dec 28, 2007 10:42 pm
Location: Virginia

Post by Shana Moore »

I reread my post and realized I came off more harsh than intended..but understanding the PTSD component helps me empathize even more. My own personal history simply reinforces the precious gift of Life, and I was having a hard time understanding the extreme reaction(by my view, I realize) to her blindness.

Thanks Bill..your explanation does fill in some of the gaps. Put that way,this seems a pretty dramatic procedure.
Live True, Laugh often
Shana
IJ
Posts: 2757
Joined: Wed Nov 27, 2002 1:16 am
Location: Boston
Contact:

Post by IJ »

They used her eyetooth?? That had me almost on my way to snopes, but I guess I'll take CNN at their word. Anyhoo, we get NO info on this lady's thinking of suicide. She could have thought of it in passing and mentioned it in passing and it got blown up in the article because it serves drama. Who knows how she was actually doing? What they do say was that she hated being dependent, and this is actually a major fear of anybody, but especially the elderly. They don't want to be a burden and she felt that she was. I've known plenty of elderly people who want to pack it in when they are told they need a home or they won't walk again, etc.

Eyesight seems to have made her feel a lot better, so I've got to guess this isn't PTSD (nor were any PTSD symptoms mentioned, but again, this isn't a history and physical, just an article). Stevens-Johnson is certainly enough to give you PTSD (imagine a total body burn with severe pain and weeks enduring dressing changes and debridements in the burn icu) but its not a done deal. Sooo many people have eligible traumas without PTSD, and so many people have many of the symptoms from this or that event that they meet criteria, the whole term is suspect and under attack. Check this out:

http://www.sciencedirect.com/science?_o ... 15c65fd343

What this lady may well have had could be adjustment disorder. If she was ok till it happened and she was a mess after and now sight restoration restored mood? Well, sounds like she wasn't adjusting to blindness very well. Recently I saw an episode of "I Survived" (love it, recommend it--people telling how they got through life threatening events, including grizzly bear attacks, firestorms, armed robbery with 80 bullet shootouts, sexual assault, recently this guy who was stabbed with a gang initiation 10 inch blade and had no measuable BP when he got to the OR) and the victim was just driving home when she was shot from the side--destroyed both eyes. A person who stopped to help was actually the shooter and drove her to his place where he raped and stabbed her, leaving her for dead. She escaped into the street and had to again trust a total stranger to save her life. She's got glass eyes now and far from being disabled, works as a victim's advocate for the state. She had the most bad a$$ can do attitude I think I've ever seen. Not everyone will get there, but I think our assumption shold be that they can and should, but sadly we have a model where everyone is a psychiatric cripple if they get a runny nose.

You think I jest here, but my other half sees people for psych disability maybe 4 times a week and the story is often someone who's had months off from work for a variety of BS complaints, decided she didn't like paperwork, and stopped going. She was promptly consoled by a therapist who enrolled her in group therapy and signed off on disability for 2 months. My partner saw her and her psych symptoms were "there's lots of paperwork," and "you gotta fill out my forms!" Saying that this person is just lazy, doesn't like their job, or perhaps received appropriate criticism generates a bleep-storm of controversy in the department from all the therapists who assume pathology and hand away my and your tax dollars. Grrr. Oh, and then if you refuse the patient can doctor shop until someone signs the paperwork, as there is no mechanism to report this disability abuse to the state when you see it. And you're graded and compensated in part on these persons' satisfaction surveys!
--Ian
Post Reply

Return to “Bill Glasheen's Dojo Roundtable”