What is the name of the technique in which the eyelid is everted and imaged using a slit lamp equipped with an infrared light or using a handheld imager with infrared capabilities?

• A. Non-contact infrared meibography
• B. Infrared slit-lamp meibometry
• C. Dynamic meibography with UV light
• D. Contact infrared meibography

Answer: (A)

Non-contact infrared meibography. Imaging the everted eyelid with infrared illumination provides a high-contrast view of the meibomian glands without touching the ocular surface. The eyelid is everting to expose the inner surface so the glands run along the tarsal plate can be seen clearly, whether you’re using a slit lamp with an infrared light or a handheld infrared camera. This method is preferred because infrared light offers good gland visualization while minimizing glare and tissue distortion, and it avoids any contact with the lid. In contrast, techniques that rely on UV light or that require lid contact are not the same approach, and meibometry refers to lipid secretion measurement rather than imaging.