The eye itself is the organ of sight. It's a complex organ responsible for capturing light and transforming it into signals the brain interprets as vision.
The Eye: An Organ of Sight
The eye, a nearly spherical hollow globe filled with fluids (humors), is responsible for vision. It's composed of several interconnected parts working together. As noted in the provided text, the eye has three main layers:
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Outer Layer: This fibrous layer is protective and includes the sclera (the "white of the eye") and the cornea (the transparent front part of the eye). The cornea plays a crucial role in focusing light. ([Overview](Reference provided))
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Middle Layer: This vascular layer is rich in blood vessels and includes the choroid, ciliary body, and iris. The iris is the colored part of the eye, regulating the amount of light entering the pupil.
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Inner Layer: This layer contains the retina, a light-sensitive tissue that converts light into electrical signals that travel to the brain via the optic nerve. (Anatomy of the Eye | Kellogg Eye Center | Michigan Medicine)
While the question asks what organ is in the eye, the eye itself is the organ. It's not a container holding another distinct organ. The various components mentioned above work in concert as part of a single, complex organ: the eye. The provided text consistently refers to the eye as the organ of sight, highlighting its complete and independent nature as an organ. (Eyes: How They Work, Anatomy & Common Conditions)
