External Eyelid Anatomy

The description above only offers a superficial overview of the anatomy. The upper eyelid starts at the eye and extends up words joined the skin.

External Anatomy Of The Eye

The eyelid is primarily made of skin.

External eyelid anatomy. Skin and subcutaneous tissue. The upper eyelid generally covers 13 mm of the upper cornea. On a piece of scratch paper number from 1 6 1 1 6 5 4 3 2 can you identify these 6 structures.

The highest peak on the upper eyelid lies slightly nasal and the lowest contour of the lower eyelid rests slightly lateral. The lateral confluence of upper and lower eyelid margins. External eye anatomy instructions for students.

As light passes through the eye the iris changes shape by expanding and letting more light through or constricting and letting less light through to change pupil size. Eyelid and orbit anatomy anatomy of the eyelid. The average aperture of the eyelids measures about 30 mm in horizontal width and approximately 10 mm in vertical height.

Tap on the image or pinch out and pinch in to resize the image. Overview of external anatomy. Click on a label to display the definition.

Its outermost portion called the episclera has a rich vascular network. Lacrimal system tear drainage system the lacrimal system is crucial for tear production and management which includes distribution of tears and draining excess tears. The collagenous outer wall of the eyeball.

The lens then changes shape to allow the accurate focusing of light on the retina. Study this image of the external eye and identify as many structures as possible. The cornea allows light to enter the eye.

Malfunction in any part of the system can cause serious complications.

Human Eye Definition Structure Function Britannica