Seeing eye to eye...

[Titus213]

Not sure if this is the proper place for this but I found it fascinating. I went to have my eyes examined today and found a new (to me at least) procedure that replaces the dilation/examination process - digital photography! I put my chin on the equipment so the tech could take the image and notice a DSLR hooked to the back of the unit. Had to check - it's a Canon D60 tethered to a laptop. Now there was a piece of equipment between my eye and the camera but here is the result....I didn't take these but I did 'buy' them. The digital exam cost's $20 extra and the doctor gave me the images on a CD. The bright spot on the right is the optic nerve, the darker area to the left the iris I think.

http://www.norwoodphotos.com/photos/184446586-L.jpg

[PhotosGuy]

The "Planet Dave"! :D

[In2Photos]

Looks cool. What is the bump on the right side at the top?

[Titus213]

The "Planet Dave"! :D

They definitely look like planets. Perhaps it would make a good avitar.

Looks cool. What is the bump on the right side at the top?

The bump on the upper right appeared exactly the same in both eye images so I'm assuming it's part of the equipment and not a bubble that will cause both of my eyes to explode unexpectedly during our next shoot. :lol:

[PacAce]

They definitely look like planets. Perhaps it would make a good avitar.



The bump on the upper right appeared exactly the same in both eye images so I'm assuming it's part of the equipment and not a bubble that will cause both of my eyes to explode unexpectedly during our next shoot. :lol:
And here I thought it was a "key" to prevent the eyeballs from popping out of your eye sockets unless the "key" on the eyeball and the notch in the eye socket matched up first. :confused:

:lol: ;) :D

[Titus213]

Leo,
I think your idea on the bump is probably the correct one. I've looked straight down several times and moved my eyes around and the both stayed put. Must be a key of some kind.

I'll have to go ogle it.

[20droger]

Your iris doesn't show in these pictures. You're looking at the retina, which is your "sensor," as it were. Your iris is your "aperture diaphragm," and is at the front of your eye. It gives you eye its color. This picture is taken through your pupil, your "aperture," and shows the back of your eye.

The darker area is the optical center of your eye, where the cones and rods are most concentrated. Consider it the "high-res" portion of your sensor.

The optic nerve constitutes your "blind spot." You can't see anything there, even out of focus. The brain homogenizes that spot into the dominant background color to avoid confusion. It's brighter because it has no rods or cones.

[Livinthalife]

Very cool! I just had lasik done, and didn't see any DSLRs...But I did my face into all kinds of equipment with lenses of that sort

[chauncey]

As I look over the respondees, it appears that most of them are of senior citizen bracket, as am I. Gives the younger generation something to look forward to.

[20droger]

I think you mean the "responders," being those who responded. The "respondees" would be those to whom they responded.

And just what is wrong with being a senior citzen? Youth is not everything it's cracked up to be. The young must look forward to getting old. The old have memories the young cannot appreciate.

My memories are better than any photo collection. My mind far surpasses a 1Ds Mk II.

[Titus213]

Your iris doesn't show in these pictures. You're looking at the retina, which is your "sensor," as it were. Your iris is your "aperture diaphragm," and is at the front of your eye. It gives you eye its color. This picture is taken through your pupil, your "aperture," and shows the back of your eye.

The darker area is the optical center of your eye, where the cones and rods are most concentrated. Consider it the "high-res" portion of your sensor.

The optic nerve constitutes your "blind spot." You can't see anything there, even out of focus. The brain homogenizes that spot into the dominant background color to avoid confusion. It's brighter because it has no rods or cones.

Thanks for all that - but something's not working because I find it very confusing. I'll take your word for it since you've used words here that I haven't seen since I was a pupil..I do know it was flash photography and I saw the spots to prove it.

As I look over the respondees, it appears that most of them are of senior citizen bracket, as am I. Gives the younger generation something to look forward to.

Very kind of you to use the term senior citizen. Most folks on the forum refer to us as old people.:lol:

[20droger]

Look here:

http://www.stlukeseye.com/Anatomy.asp

The darker area in your photo is the macula, the more sensitive part of the eye. The small disc-shaped center of the macula is the fovea. This is where you eye focuses the image.

I'm sure the doctor told you, but your eye appears healthy and normal. Of course, now that I have your pattern, I can use it to fool retinal scanners.

[chauncey]

20droger- you are indeed correct sir, didn't use to do that.

[Titus213]

Look here:

http://www.stlukeseye.com/Anatomy.asp

The darker area in your photo is the macula, the more sensitive part of the eye. The small disc-shaped center of the macula is the fovea. This is where you eye focuses the image.

I'm sure the doctor told you, but your eye appears healthy and normal. Of course, now that I have your pattern, I can use it to fool retinal scanners.

This would explain the doctor's comment that he would see macular degeneration in that area if there were any. And yes, he said there were no problems.

As to using my retinal scan - one caveat - you have to let me know what it allows you into....I may want to go too.

[20droger]

20droger- you are indeed correct sir, didn't use to do that.
Hey, us Old Farts gotta stick together.

[20droger]

This would explain the doctor's comment that he would see macular degeneration in that area if there were any. And yes, he said there were no problems.

As to using my retinal scan - one caveat - you have to let me know what it allows you into....I may want to go too.
How about the back door of the Playboy Mansion?

[Titus213]

Look here:

http://www.stlukeseye.com/Anatomy.asp

The darker area in your photo is the macula, the more sensitive part of the eye. The small disc-shaped center of the macula is the fovea. This is where you eye focuses the image.

I'm sure the doctor told you, but your eye appears healthy and normal. Of course, now that I have your pattern, I can use it to fool retinal scanners.

Based on your link what was the direction of the photograph taken of my eye? It would appear that it was thru the pupil at an angle that put the macula next to the optic nerve head which doesn't appear to be possible from the front.

Amazing things our eyes. For that matter the whole body is a marvelous work.

[Titus213]

How about the back door of the Playboy Mansion?

I'm a senior citizen, I doubt it would do me any good so enjoy.

[20droger]

Based on your link what was the direction of the photograph taken of my eye? It would appear that it was thru the pupil at an angle that put the macula next to the optic nerve head which doesn't appear to be possible from the front.

Amazing things our eyes. For that matter the whole body is a marvelous work.
When viewed through the pupil, straight into the eye, the macula and the optic nerve are side-by-side horizontally and separated by about a quarter to a third of an inch. The optical center of the photograph was right between them, giving an optimum view of both. Because of the curvature of the eye, if you look straight at one of them, the other is severly foreshortened.

[20droger]

I'm a senior citizen, I doubt it would do me any good so enjoy.
Hey, I understand that Old Hugh serves up some terriffic dishes. And the girls are pretty, too.

He has a five-star kitchen.

[PacAce]

I'm a senior citizen, I doubt it would do me any good so enjoy.

Psst, just don't tell that to Hugh. He still thinks he's a junior citizen. ;) :)

[20droger]

Psst, just don't tell that to Hugh. He still thinks he's a junior citizen. ;) :)
I wouldn't necessarily believe every thing he wants us to.