Home page

Interactive simulations for science teaching

400 downloadable interactive simulations

Nearsightedness

You need the flash plugin ! Get it »

 
 
Loading...

You need the flash plugin ! Get it »

fs Print student sheet dl talk

97
 
This simulation is in light version. Subscribe now!
 
 
Summary
Pedagogical animation of the myopic (nearsighted) eye. Myopia is a condition where the eye is too long in relation to its refractive power. The light rays thus intersect, forming an image,  in front of the retina. Notice that nearsighted people typically see well up close, but have difficulty seeing far away.
The corrective lens modifies the focal length to shift the point of intersection to the surface of the retina. We also show that correction moves the "near point" away from the eye.
You can click and drag the object to move it along the optic axis.
Diagrams are not drawn to scale.
Learning objectives
  • To understand nearsightedness  and how a lens is able to correct it.
  • How to use the animation

    Rollover  the image of the eye to display the names of its parts.

    Click and drag the object along the optic axis.

    Click on   play to add the correction.

    Student sheet
    You have to subscribe to view the student sheet
    Keywords
    myopia, myopic, correction, glass, lens, near-point, image, retina, eye, Crytalline-lens, nearsightedness
    Share your ideas with us!
    Share your ideas with us!
    BackCopyright
    en | fr | es | de | العربية | nl