The Eye
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The Eye. RETINA. SCLERA. IRIS. VITREOUS HUMOUR. AQUEOUS HUMOUR. LENS. PUPIL. CORNEA. OPTIC NERVE. BLIND SPOT - Activity. Cover your RIGHT eye and with your LEFT eye, look at the + . At a certain distance , the dot will disappear from sight.

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The Eye

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The Eye


RETINA

SCLERA

IRIS

VITREOUS HUMOUR

AQUEOUS HUMOUR

LENS

PUPIL

CORNEA

OPTIC NERVE


BLIND SPOT - Activity

  • Cover your RIGHT eye and with yourLEFTeye, look at the +.

  • At a certain distance, the dot will disappear from sight.

  • This is when the dot falls on the blind spot of your retina.

  • Now, reverse this process by closing your LEFT eye and looking at the dot with your RIGHT eye.

  • Move the image slowly closer to you and the + should disappear.


Interactive Eye

http://www.freezeray.com/flashFiles/eye.htm

http://www.biologymad.com/resources/eye.swf

http://www.nei.nih.gov/health/eyediagram/index.asp


VIRTUAL

Eye DISSECTION

www.eschoolonline.com/company/examples/eye/eyedissect.html


Vision Problems


LENSES vs VISION PROBLEMS


MYOPIA

Short-Sightedness

Corrected with a Concave Lens


HYPEROPIA

Long-Sightedness

Corrected with a Convex Lens


ASTIGMATISM

Irregular Shaped Cornea and/or Lens.


ASTIGMATISM

Produces twofocusing points in front of or behind the retina.

Hard Contact Lenses


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