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Optics: Lesson Idea 1 Optics Art Lesson Idea 2 - Optical Painting Worksheet 1 - Animal Eyes Worksheet 2 - The Human Eye Worksheet 3 - Common Visual Problems Worksheet 4 - The Fish Eye Worksheet 5 - Bioluminescence Activity sheet 1 - Colourblindness Activity sheet 2 - Optical Illusions Activity Sheet 3 - Magic Eye Images Optics - Associated Web Links

 

Activity Sheet 3 - Magic Eye as used in Vision Therapy

 

Understand Where to Aim Your Eyes

There are three basic ways of looking at 3D images with both eyes...


1) Normal Vision
Normally, if you look at or read something on the computer monitor, you aim your eyes directly at the surface of the monitor. You may already have mastered this technique in your everyday tasks, without even realising!


2) Parallel Vision
With the parallel method (also termed the divergence or Magic Eye method), the lines of sight of your eyes move outward toward parallel and meet in the distance at a point well behind and beyond the image. When you parallel-view, the muscles inside your eye that control the focusing lens relax and lengthen.

NOTE: All Magic Eye stereograms are set up for parallel-viewing.


3) Cross-eyed Vision
Another method for 3D viewing is called cross-viewing or the cross-eyed method. You aim your eyes so that the lines of sight of your eyes cross in front of the image. When you cross-view, the muscles inside your eye that control the focusing lens contract strongly and shorten.

NOTE: If you cross-view Magic Eye pictures or other images intended for parallel-viewing, shapes that should pop out will look punched in. For example, a Magic Eye stereogram that was designed to have a star popping out in 3D would look like it has a star-shaped hole cut into the background.

In order to view 3D stereo images you must have two eyes that work together as a coordinated team.

The Magic Eye

Learning to see the images is like riding a bike. Once you get the hang of it, it gets easier and easier.
In all of the Magic Eye images, you'll note a repeating pattern. In order to "see" the hidden image, two things must happen. First you must get one eye to look at a point in the image, while the other eye looks att the same point in the next pattern. Second, you must hold your eyes in that position long enough for the marvellous structures in your brain to decode the 3D information that has been coded into the repeating patterns.

Image - Planet Saturn Image - Coil Spring
Image - Shark Image - Dinosaur
Image - Floating Smarties Image - Floating Fish

 

Thought those were easy?

Try these...
NOTE - The picture solutions are found beside the Magic Eye image - try covering these with paper whilst trying to view image - no peeking!

Magic Eye Image - Kid Suprise Magic Eye Solution - Kid Suprise
Magic Eye Image- Hand Magic Eye Solution - Hand
Magic Eye Image- Falling Acorn





Information Sources:

Optics Index | Optics Lesson Idea 1 | Optics Art Lesson Idea 2 | Worksheet 1 | Worksheet 2 | Worksheet 3 | Worksheet 4 | Worksheet 5 | Activity Sheet 1 | Activity Sheet 2 | Activity Sheet 3 | Associated Web Links