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ARE YOU GOING BLIND?

Find the ‘blind spot’ in your eye with this simple experiment

Suitable For

Grade 3

Difficulty

1

Time Required

 <1 Hour

Supervision

Advised

What’s it about?

Did you know that in every human’s eye there is a certain ‘blind spot’? This area of the eye is not able to observe light. This little ‘blind spot’ is however not in your direct field of vision of the eye and hence you will not notice it except when you carry out the following simple science experiment:

Topics covered

Retina, Optic nerve

What will I need?

  • WHITE PAPER
  • BLACK MARKER

Procedure (Method)

Unfortunately, this section is only available in the e-book version of the project.

How does it work?

Unfortunately, this section is only available in the e-book version of the project.

It’s amazing how the brain assumes certain things in our field of vision so accurately despite the fact that the eyes cannot actually see what is there. In the human eye a membrane called the ‘retina’ is used for vision. This membrane is light sensitive and consists of thousands of light-sensitive nerve endings. Each of these nerve endings is connected to the brain via very thin wires or ‘nerves’ and is connected to the ‘optic nerve’ at a specific point on the retina. On this exact spot where the ‘optic nerve’ is connected to the retina is where the ‘blind spot’ is located.

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