At my 33rd vision therapy session, my therapist Jeri declared, “you’re on the map!” I was doing a 3D steropsis activity on the computer. It’s like the clown and numbers depicted on the right, below, but my 3D picture is a duck instead of a clown (which is a good thing, because I have a clown problem.)
To see 3D on the computer screen I wear LCD glasses. One of the four numbers seems to ‘float’ when compared to the other numbers, and I tap that direction on the joystick controller. Sometimes I overthink about which number is most float-y, so I always try to just quickly tap and not worry about it too much. I always think of Dr. Len Press’s post about me and 3D:
The binocular centers in her brain are beginning to coincide…
Coinciding, indeed. I am seeing 3D on the computer, for real. I am seeing 3D popping out toward me, and also 3D going away from me. The computer program measures what I do, and I have some exciting numbers to share:
BO: 13 diopters BI: 8 diopters
If you are in the strabismus biz & understand that lingo, you want to give me a hi-five right now. Those are some rockin’ numbers for my post-op strab self! And what they mean is: I am seeing 3D, it is measurable on the computer program, and as I continue my homework, the next thing that will happen is that I will see more, and start to see 3D in my regular day-to-day world.
Jeri my therapist likes to say, “in vision therapy we don’t use dollars, we use diopters.” BO stands for “base out” and that is the amount my eyes can both turn inwards, converge, and fixate on something near me…this is easier for me to do, because my eyes already turn inwards because of the strabismus. BI, or “base in” describes how much my eyes can turn “out” (or more accurrately, look straight and not turn in) and diverge on something far away (three feet away, or more.)
By the end of therapy, my numbers should be:
BO: 28 diopters BI: 15 diopters
This means I can expect to see some peeks at 3D in my daily life (and I think I did earlier, but that’s another post.) I am thrilled to be on the map!