How many meibomian glands are typically found in the upper tarsal plate?

The typical number of meibomian glands found in the upper tarsal plate usually ranges from approximately 25 to 30. These sebaceous glands are essential for producing meibum, the lipid component of tear film, which prevents evaporation and maintains corneal hydration.

The upper eyelid has a greater number of these glands compared to the lower eyelid, reflecting its larger surface area and the increased need for lubrication in that region. Hence, the answer indicating 25 is in line with the accepted anatomical knowledge regarding the average quantity of meibomian glands present in the upper tarsal plate. This understanding is crucial for clinical practices related to dry eye disease and meibomian gland dysfunction, both of which can significantly impact ocular health and patient comfort.