Light refracts (bends) as it passes sequentially through the cornea, aqueous humor, lens, and vitreous humor. MCAT Eye Anatomy: Diagram of the Human Eye The blind spot is where the nerve exits the eye. Light sensitive layer over the back of the eye containing photoreceptorsĪrea of the retina with high visual activity due to high concentration of conesĬarries information from the retina to the occipital lobe of the brain. Tough outer coat for protection and muscle attachment Jelly-like substance that fills the inner eye *KEY CONCEPT: Accommodation: altering the lens so the eye can focus on both near and far objectsĬhanges shape of lens during accommodation *KEY CONCEPT: The pupil dilates in low light conditions and constricts in high light conditionsįocuses light, bends to allow accommodation Outermost lens of the eye responsible for the majority of light refractionĬolored tissue that regulates the amount of light entering the eye through the central pupil

The Human Eye: Structure and Function Structure Plus, click the link below for a handy PDF version of this overview, and for many other MCAT resources! Also be encouraged to check out our overview of all MCAT biology and biochemistry topics. Want to familiarize yourself with MCAT eye anatomy content? Below, we’ll cover everything you should study: the functions, diagram, and photoreceptor comparison.

By Kat Thomson on Jin Biological and Biochemical Foundations of Living Systems (Bio/Biochem)

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