Visual System and Sensory Integration

📋 Course Outline

1. Eye Anatomy
2. Photoreceptors
3. Visual Pathway
4. Visual Disorders
5. Ear Anatomy
6. Hearing Physiology
7. Auditory Disorders
8. Taste Anatomy
9. Olfactory System
10. Sensory Integration

📖 1. Eye Anatomy

🔑 Key Concepts & Definitions

• Cornea: Transparent, dome-shaped front surface of the eye that refracts (bends) incoming light to focus it onto the retina.
• Iris: The colored muscular ring surrounding the pupil that controls the size of the pupil to regulate light entry.
• Pupil: The adjustable opening in the center of the iris that determines the amount of light reaching the retina.
• Lens: Transparent, flexible structure that fine-tunes focus by changing shape (accommodation) to project clear images onto the retina.
• Retina: Inner layer of the eye containing photoreceptor cells (rods and cones) that convert light into neural signals.
• Optic Nerve: Cranial nerve that transmits visual information from the retina to the brain’s visual cortex.

📝 Essential Points