How to tell the difference between thick eyelids and thin eyelids?

Eyelids are a type of tissue unique to the eyes. Their function is to protect the safety and health of the eyeball. When people sleep, they close their eyes and let their eyelids cover the eyeball, thereby protecting the eyeball and promoting sleep. The thickness of the eyelids has a great impact on people. Let’s take a look at how to distinguish thick eyelids from thin eyelids. Those who are interested can learn about this and correctly understand the role of eyelids on the body.

The eyelid, commonly known as the eyelid, is located in front of the eyeball and forms a barrier to protect the eyeball. The eyelids are divided into upper eyelids and lower eyelids, and the gap between the upper and lower eyelids is called the palpebral fissure. The outer ends of the inner and outer canthus of the palpebral fissure are called the medial canthus and lateral canthus respectively. It is obtuse and has a slightly sunken space nearby, called the Lake of Tears. There is a rose-colored protrusion on the bottom of the Lake of Tears, called the Caruncle of Tears. There is a small protrusion on the inner end of the upper and lower eyelids, and a small hole on the top of the protrusion, called the lacrimal punctum, which is the beginning of the lacrimal duct. When looking straight ahead normally, the palpebral fissure height is about 8mm, and the upper eyelid covers 1-2mm above the cornea.

How to determine whether you have single eyelids or double eyelids:

1. From a morphological point of view, the difference between single eyelids and double eyelids lies in the presence or absence of transverse wrinkles on the upper eyelid. The skin of the entire upper eyelid of people with single eyelids is thicker and appears more bloated, with slightly sagging skin covering the eyelid margin. When looking straight ahead, the roots of the eyelashes are not visible; the skin of the upper eyelid of people with double eyelids is thinner and appears more delicate, with no sagging skin on the upper eyelid and the entire eyelid margin is visible. People with monolids have shorter and narrower palpebral fissures, while people with double eyelids have longer and wider palpebral fissures.

2. Differences in anatomical structure: Since the occurrence of single and double eyelids is affected by race, region, genetics, age and other factors, there are significant differences in their morphology, and therefore there are also obvious differences in their anatomical structure. The skin of people with single eyelids is thicker, the subcutaneous tissue is higher, the orbicularis oculi muscle is more developed, and there is more fat behind the orbicularis oculi muscle. The tarsal plate of people with single eyelids is thin and narrow, and the muscle for opening the eyes - the levator palpebrae superioris muscle is underdeveloped. The opposite is true for people with double eyelids.