Eye section necklace | sterling silver The eye in cross-section — the optical and neural architecture of vision revealed in a single plane. The Internal Anatomy of the Eye A sagittal section through the eye reveals its three concentric layers (tunics): the fibrous tunic (cornea anteriorly, sclera posteriorly — the structural shell), the vascular tunic or uvea (choroid, ciliary body, and iris — pigmented, vascular, and muscular), and the neural tunic (retina — the photosensitive layer). The lens, suspended by the zonular fibres of the ciliary body, changes shape during accommodation (near focusing) under the action of the ciliary muscle. The anterior chamber is filled with aqueous humour; the vitreous chamber (the bulk of the eye) with the gel-like vitreous humour. The fovea — the point of highest visual acuity, packed with cone photoreceptors — is visible on the posterior retina, and the optic disc (blind spot) marks where the optic nerve exits. A Meaningful Gift for Science Lovers A piece for ophthalmologists, optometrists, and visual neuroscientists who work with the eye's internal anatomy. For an ophthalmologist or vitreoretinal surgeon who operates inside the eye For an optometrist or orthoptist who examines the posterior segment For a visual neuroscientist or psychophysicist studying the retina For a medical student who has studied ocular anatomy in cross-section Comes in a gift box. Free worldwide shipping. You Might Also Like Eye section necklace | gold vermeil Eye necklace | silver Inner ear anatomy necklace | silver Brain necklace | silver FAQQ: Who wears a cross-section of an eye?A: Ophthalmologists, optometrists, vision researchers, neuroscientists studying visual processing. Anyone who understands how the eye actually works.Q: What does the cross-section show?A: The internal layers from cornea to retina to optic nerve. It's anatomically detailed, showing the complexity that most people never think about.Q: Sterling silver or gold vermeil?A: 45cm (18 inches) standard. Both materials available. precision-made and shipped globally via DHL Express. Custom chain length on request.Q: Is this good for an optometry student?A: Yes. They spend years learning this anatomy. A piece that honors the real structure feels personal.