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How the Oculus Keratograph 5M (K5M) Captures the Lipid Layer of the Tear Film

The Oculus Keratograph 5M (K5M) is a state-of-the-art corneal topographer and tear film analyzer that provides detailed, non-invasive imaging of the lipid layer, helping to diagnose and manage Meibomian Gland Dysfunction (MGD) and evaporative dry eye disease.

How the K5M Assesses the Lipid Layer:
Infrared Interferometry – The K5M utilizes specialized infrared light to detect interference patterns created by the tear film’s lipid layer. This allows for a clear, real-time visualization of lipid layer thickness and distribution.

Lipid Layer Thickness Grading – The device automatically classifies the lipid layer using a colour-coded scale, helping to determine whether the oil layer is sufficient to prevent tear evaporation.

Tear Film Break-Up Time (NIBUT) – By analyzing how long the tear film remains stable before breaking up, the K5M helps assess lipid layer function and overall tear stability.

Dynamic Lipid Layer Analysis – The K5M captures video sequences of the tear film in motion, showing how the lipid layer spreads after blinking—critical for diagnosing MGD.

At Peter Ivins Eye Care in Bearsden, Glasgow, we incorporate Oculus K5M imaging into our comprehensive dry eye assessments, ensuring precise diagnosis and personalized treatment.

📞 Book an appointment today for expert dry eye analysis and care.