Interviewing some animators to make us little videos. Need a short project to evaluate their work.
I put together a quick script for a video. Would love some community input in making it short and concise and sense-making-ish.
Would you mind reviewing it and possibly recommending adjustments?
Think of it as the voiceover for a short animated video. Ideally will make sense in terms of timing and content for something animated.
Why Is My Vision Blurry Without Glasses?
Here we go, the short, short, extra short version on what’s up with your eyes seeing blurry.
Your eyeball is a fluid filled ball. In the front is a flexible lens that moves for near and far focus, and in the back is the ‘receiver’ for the light signal, the retina.
Lens in the front, retina in the back.
The alignment of the two is critical for clear vision. But it is a fluid filled ball, and this ball is not going to stay in perfect alignment without an active control mechanism.
This is why your eyes have a system built in to continuously adjust the axial length of your eyeball.
Now to fully explain this system would take a rather long video. If you’re curious about the extended version of the workings of the biology, check the link below for a lengthy and detailed explanation of the inner workings of the axial length adjustment mechanism.
But here’s the short version: Your eyeball is in a constant state of adjustment, based on where most the light focuses - on, in front of or behind the retina.
If light focuses in front of the retina, the eyeball will try to shorten - axial reduction.
If light focuses behind the retina, the eyeball will try to lengthen - axial elongation.
One of the reasons you started to need glasses was light focusing in front of the retina, rather than on it.
A major contributing cause for this can be a focusing muscle spasm - the lens in your eye uses a circular muscle to change shape. When you are focused up close, the muscle is tight. Keep that muscle tight for many hours a day, it will spasm.
It’s basically stuck in close-up mode. And instead of taking time to relax it, you may have gotten glasses. Note that you may be told you have some mysterious genetic condition or illness - though in actuality your eyes might be perfectly healthy!
Glasses will compensate for the muscle spasm by moving light back further in the eye. Even though the muscle is in “close-up mode”, the glasses now allow you to see clearly at a distance.
This “quick fix” has unintended consequences, however:
The distance glasses will now cause some of the light to focus behind the retina (called hyperopic defocus).
This sends a signal to your eyeballs to change axial length, elongating the eyeball to correct what it perceives as incorrect length. Your eyes don’t know about the glasses!
Now that your eyeball is longer, light will focus further in front of the retina (without glasses), and you are even more nearsighted than before.
Higher and higher correction glasses can continue to cause the eyeball to elongate, in many cases.
Curious to learn more?
A great resource to dive into all the science and studies on this Google Scholar: scholar dot google dot come. There are many thousands of peer reviewed clinical studies exploring axial elongation caused by glasses.
Search for lens induced myopia as a great starting point. Also explore the keywords pseudomyopia and NITM - near induced transient myopia.
Goal here, very short, 1-2 minute videos, explaining key concepts.
Put a few of them out there, see what they get for traction and feedback. Who knows whether they make any difference, attract a new audience, help endmyopia, … or just equate to ole Jakey burning money in his office trashcan (also fun, but of questionable community value).
Please do share any edits / clarifications you might see fit, in so many ways I feel like I can no longer repeat the same old things without being unsure of whether I still make any sense at all!