Frequently Asked Questions

Lipid layer assessments are typically performed using specialist interferometry technology. These advanced imaging systems allow clinicians to evaluate tear film quality, lipid layer thickness, and tear stability quickly and comfortably without touching the eye.

The assessment itself usually takes only a few minutes to perform. However, it is often completed as part of a more comprehensive dry eye consultation, which may include additional investigations depending on your symptoms.

The tear film is a thin protective layer that covers the surface of the eye. It consists of three layers – oil (lipid), water, and mucus – which work together to keep the eyes hydrated, comfortable, and protected from irritation and infection.

Several factors can influence tear film lipid layer results, including recent contact lens wear, eye makeup, screen use, blinking habits, environmental conditions, and existing dry eye disease. Your clinician may advise avoiding certain products or activities before your appointment to help ensure accurate results.