I've been working on the lifesaver card for several months now. I am able to fuse and get a virtual image in the middle, but the image is green, not a mixture of red and green. Also instead of seeing the letter E on the virtual image, I just see an L. The back of the card says this means the center of my left eye is not seeing. Has anyone else experienced this, and were you able to get past it and totally fuse the red and green circles?
The lifesaver card is hard for me when converging but not diverging. Perhaps it's because of my 60 year old eyes, but I have a hard time seeing the lettering on the card so I don't get all the cues and virtual images created.
Thanks Greg, I'm just a few years behind you. It is also hard to get all the cues looking through my trifocals. :)
I am able to do the lifesaver card pretty easily now. I feel that in my situation the specific exercises that led me to this ability were the brock string and the sliding tranaglyph. I don't see the sliding tranaglyph discussed much, but for my situation I feel strongly that this is what had the most immediate impact on my ability to increase my conv / div ranges and eventually free fuse shapes like on the lifesaver card. Of course the brock string helped with suppression. When I first started to do the lifesaver card I saw the red and green as "swirling" around the circles, eventually the color became more of a solid blend of the two colors. If you are not using the sliding tranaglyph, just for reference there is a pic here, it is right above the glasses - http://www.bernell.com/fullsize/3247/320 obviously I have no idea if this would be an appropriate exercise for your situation. Incidentally, my therapist did not introduce the lifesaver card until I had been doing stationary tranaglyphs, sliding tranaglyph, and brock string for quite some time already. Hope this is helpful.
Thanks, I recently have started using a tranaglyph. In your link above I see the eccentric circles cards that I just started using a few weeks ago. I'll keep working on those and the brock string. Maybe a few more months and I can fuse the red and green on the lifesaver card. :) This stuff sure takes a long time!
One thing I realize more and more is there is an extremely wide variety of experiences that people can have in VT. I made very rapid progress with fusion and in fact I saw depth in the amblyoscope the very first time I walked in for an evaluation (I left that appointment stunned!). I can see depth in the mirror stereoscope and sometimes with the bernell-o-scope as well as fuse some difficult targets, yet the rope and clown vectograms are flat as a pancake against the wall, and I have never seen any 3D in real life. I certainly cherish those milestones, but it has been easy to become impatient at times.
Interesting about the progressive lenses making it more difficult. My prescription should include a progressive bifocal, but the correction is very mild. The therapist recommended that I skip the progresssives and just go with the prism correction and +1 for reading. I recently had a 2nd pair made with a slight vertical correction in one eye in addition to the horiz correction I had before, the result is I get slightly better depth on the stationary tranaglyph cards.