Question

A normal healthy eyelid with clear lipid from meibomian glands.

a) A
b) B
c) C
d) D

Answer 1

The meibomian glands are crucial for maintaining a healthy eyelid by secreting oils that prevent tear evaporation. A clear lipid from these glands indicates proper function and is important for preventing dry eye conditions. The meibum is the lipid layer that protects the eye's surface.

Step-by-step explanation:

The question pertains to the meibomian glands, which are specialized sebaceous glands located at the rim of the eyelids. Their primary function is to secrete oils onto the surface of the eye that helps keep the tears from evaporating too quickly, thus playing a key role in maintaining a normal healthy eyelid. This oily substance, also referred to as meibum, consists of lipids that form the outermost layer of the tear film and protects the eye's surface. The glands can be examined under a microscope, as seen in the provided medical school micrograph, displaying the secretion at a magnification of 400 times (LM x 400).

The condition of the meibomian glands is crucial for eye health, a clear lipid layer is an indication of well-functioning glands which contribute to the stability of the tear film and prevent dry eye syndrome. When these glands are blocked or malfunction, conditions such as blepharitis may occur, indicated by eyelid inflammation.

Answer 2

The meibomian glands are crucial for maintaining a healthy eyelid by secreting oils that prevent tear evaporation. A clear lipid from these glands indicates proper function and is important for preventing dry eye conditions. The meibum is the lipid layer that protects the eye's surface.

Step-by-step explanation:

The question pertains to the meibomian glands, which are specialized sebaceous glands located at the rim of the eyelids. Their primary function is to secrete oils onto the surface of the eye that helps keep the tears from evaporating too quickly, thus playing a key role in maintaining a normal healthy eyelid. This oily substance, also referred to as meibum, consists of lipids that form the outermost layer of the tear film and protects the eye's surface. The glands can be examined under a microscope, as seen in the provided medical school micrograph, displaying the secretion at a magnification of 400 times (LM x 400).

The condition of the meibomian glands is crucial for eye health, a clear lipid layer is an indication of well-functioning glands which contribute to the stability of the tear film and prevent dry eye syndrome. When these glands are blocked or malfunction, conditions such as blepharitis may occur, indicated by eyelid inflammation.