Collection: Eye models

In our selection of eye models, you can choose between models that exclusively show the anatomy of the eyeball. There is also a complete model which also shows the eye area. Furthermore, there is a practical model for demonstrating the refraction/refractive error of the eye as well as a special pair of glasses that simulate the changes in vision caused by alcohol intoxication.



Eye models are mainly used for understanding the anatomy of the eye as well as clinical aspects such as diseases, examinations and treatment.



Anatomically, the eye includes many small and complex anatomical structures. With an eye model of the eyeball at hand, you can study the 3 layers of the eye - the outer, middle and inner. The outermost layer is made up of the transparent cornea, which at the limbus is connected to the sclera (the white tendon covering the back 5/6). The middle layer (called the uvea) consists of the iris (rainbow) incl. the pupil, the corpus ciliare (the ciliary body) and the choroid (the choroid). The innermost layer is the retina.



On the eye models, the eye movement apparatus can be seen at the outer end (the eye muscles). It consists of 6 striated muscles - the 4 straight muscles called musculi recti and the 2 oblique muscles called musculi obliqui. Inside the eye models is the vitreous body (corpus vitreum), and at the back is the optic nerve (nervus opticus) in relation to blood vessels.



The eye models can be split so that the layers can be studied. Furthermore, the lens and the entire vitreous body can be removed. On the complete eye model, which also shows the surrounding area of ​​the eye, a bit of bone tissue, other soft parts such as ligaments and fatty tissue, as well as the lacrimal apparatus, which consists of the lacrimal gland and lacrimal ducts (the lacrimal canals, the lacrimal sac and the lacrimal canal, of which only the latter is not visible), can be seen.



Clinically, the eye models can be used to understand diseases of the eye. It can be, for example, "red eye", retinal detachment, vitreous collapse, diabetic eye disease, uveitis, scleritis as well as metastases and primary tumors such as malignant melanomas (birthmark cancer) in the uvea.



The complete eye model can also be used to understand diseases of the lacrimal gland and tear ducts, such as lacrimal duct stenosis. The practical eye model can be used to demonstrate and understand the representation of objects on the retina, accommodation (via changes in the curvature of the lens), nearsightedness (myopia) and farsightedness (hypermetropia).