How can a Meibomian cyst be diagnosed?

The diagnosis of a Meibomian cyst, also known as a chalazion, is primarily made through physical examination rather than laboratory tests or imaging techniques. Eversion of the eyelid allows healthcare providers to directly visualize the affected area, where a Meibomian cyst typically appears as a yellowish lump. This direct observation is key because it reveals the cyst's presence and characteristics, which are central to the diagnosis.

In contrast, blood tests, while useful in other contexts for systemic conditions, do not provide information about the presence of a Meibomian cyst. MRI scans are more often reserved for assessing complex eye or orbital conditions and are not standard practice for diagnosing superficial eyelid issues. Lastly, assessing visual acuity focuses on the function of vision rather than diagnosing specific structural problems like a Meibomian cyst. Therefore, the method of eversion and visual examination is the most appropriate and effective means of diagnosis in this context.