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Functions and disorders of the eye
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3.04 Functions and disorders of the eye
3.04 Understand the functions and disorders of the sensory system
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3.04 Understand the functions and disorders of the sensory system
3.04 Understand the functions and disorders of the sensory system
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Essential Questions
•What are the functions of the sensory system?
•What are some disorders of the sensory system?
•How are sensory system disorders treated?
•How do you relate the body’s communication to the sensory system?
Understanding the functions of the eye
3.04 Understand the functions and disorders of the sensory system
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Understanding the functions of the eye
External eyeExternal eyeOrbitOrbit
Eyelids and eyelashesEyelids and eyelashes
ConjunctivaConjunctiva
Lacrimal apparatusLacrimal apparatus
Extrinsic musclesExtrinsic muscles
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Understanding the functions of the eye
External EyeExternal Eye
Extrinsic MusclesExtrinsic Muscles
Superior rectusSuperior rectusInferior rectusInferior rectusLateral rectusLateral rectusMedial rectusMedial rectusSuperior obliqueSuperior obliqueInferior obliqueInferior oblique
3.04 Understand the functions and disorders of the sensory system
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Understanding the functions of the eye
Internal eyeInternal eyeCorneaCornea
IrisIris
PupilPupil
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Understanding the functions of the eye
Internal eyeInternal eyeCiliary bodyCiliary body
LensLens
Aqueous Aqueous humorhumor
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Understanding the functions of the eye
Internal eyeInternal eyeScleraSclera
ChoroidChoroid
RetinaRetina
3.04 Understand the functions and disorders of the sensory system
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Understanding the functions of the eye
Internal eyeInternal eye
Vitreous Vitreous humorhumor
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Understanding the functions of the eye
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Understanding the functions of the eye
Process of SeeingProcess of Seeing
Trace the field of Trace the field of vision.vision.
Is there anything Is there anything strange about this strange about this picture? Explainpicture? Explain
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Why can’t you see in the dark?
Understanding the functions of the eye
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VisionVision
Rods and cones of the retina
What are the functions of the rods and cones?3.04 Understand the functions and
disorders of the sensory system13
Understanding the functions of the eye
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Check your knowledge!
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Vision ActivityVision Activity
Do you see what I see?Do you see what I see?
Disorders of the eye
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CataractCataract
GlaucomaGlaucoma
Hyperopia
Hyperopia
MyopiaMyopia
Presbyopia
PresbyopiaAstigmatismAstigmatism
DiabeticDiabetic retinopathyretinopathyDetachedDetached retinaretina
Have you heard of these conditions?What do you know about them?
Color blindnessColor blindness
ConjunctivitisConjunctivitis
Disorders of the eye
Describe this lens.Describe this lens.
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CataractCataract
Disorders of the eye
CataractCataract
How is a How is a cataract cataract treated?treated?
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Disorders of the eye
Color blindnessColor blindnessDo you see the Do you see the number?number?What is color What is color blindness?blindness?What causes it?What causes it?
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Disorders of the eye
ConjunctivitisConjunctivitisWhat is conjunctivitis?What is conjunctivitis?What are the symptoms?What are the symptoms?What causes it?What causes it?How is it treated?How is it treated?
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Detached retinaDetached retina
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Discuss what happens Discuss what happens in this process.in this process.
What is the relevance What is the relevance to health?to health?
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Detached retinaDetached retina
Compare this process Compare this process to the previous picture.to the previous picture.
What might cause this What might cause this condition?condition?
Disorders of the eyeDiabetic Diabetic retinopathyretinopathyWhat causes diabetic What causes diabetic retinopathy?retinopathy?
What are the What are the symptoms?symptoms?
Explain the impact Explain the impact on vision.on vision.
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Disorders of the eye
GlaucomaGlaucomaWhat are the What are the common symptoms common symptoms of glaucoma?of glaucoma?How is it How is it diagnosed?diagnosed?How is it treated?How is it treated?
3.04 Understand the functions and disorders of the sensory system
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Disorders of the eye
Macular degenerationMacular degeneration
What is macular degeneration?What is macular degeneration?
Compare the two types.Compare the two types.
How is it diagnosed?How is it diagnosed?
What is the treatment?What is the treatment?
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3.04 Understand the functions and disorders of the sensory system
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Compare the symptoms and treatments of these common eye disorders.
Problems with FocusProblems with Focus
Testing vision
How do we test visual How do we test visual acuity?acuity?
What is 20/20?What is 20/20?
What does PERRLA What does PERRLA mean?mean?
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3.04 Understand the functions and disorders of the sensory system
3.04 Understand the functions and disorders of the sensory system
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Essential Questions
•What are the functions of the sensory system?
•What are some disorders of the sensory system?
•How are sensory system disorders treated?
•How do you relate the body’s communication to the sensory system?
3.04 Functions and disorders of the eye
The EndThe End
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