Re: [photo-3d] Re: 3d vision again

[Linda Nygren <lnygren@xxxxxxx>]

This makes sense to me to try. 

I am not an ophthalmologist, but as a pediatrician I do know a little
about strabismus and amblyopia ("lazy eye" etc). I am curious as to
whether someone (older child or adult) who has never seen
stereoscopically could actually fuse and "process" the images into 3D
even if they are delivered appropriately to each eye by correcting the
visual axes of the input tomatch the eyes. If so, would this be an
immediate "skill", or acquired/improved with practice? Or is there a
developmental time window after which the brain would be unlikely to be
able to do this? 

Perhaps some of the more erudite people on the list would know if there
is existing scientific data on this? Although I would encourage your
daughter to try it out regardless. (i.e. never believe everything you
read, even if it is in the "scientific literature").

Some people with eye muscle imbalance have a "prism" component added to
their eyeglasses, which for many will allow binoclar vision. In your
daughter's case, with very limited movement of the affected eye, I
assume that this would not be helpful, but it is someewhat similar to
what is being proposed. I would think that with the good visual acuity
that she does have in each eye, and if she is able to fine tune the
adjustment of the two viewers herself, that there would be a reasonable
chance of success. 

Good luck! And keep us posted.

 -Linda

Alan Lewis wrote:
> 
> After sending my last post on this situation (non parallel view paths
> for a stereo viewer) I thought of the following:
> 
> Experiment by using two individual slide viewers (not stereo viewers,
> but the single slide viewers sold by Porters). Put the left slide in
> one, right slide in the other and then hold them individually up to each
> eye and manuever around to see if a fused image can be formed.
> 
> Each could be moved to whatever orientation is necessary to align them
> with each eye.
> 
> These single slide viewers use conventional 35mm full frame slides.  You
> would have to mount your Realist images into single full frame slide
> mounts.
> --
> Alan Lewis
> mailto:3-d@xxxxxxxx
> http://members.home.net/3-d
> Serious viewers for Serious viewer's
> New stereo viewers & Stereo Wedding Photography