Dry eye disease (DED) is defined as a "multifactorial disease of the ocular surface characterized by a loss of tear film homeostasis and associated with ocular symptoms, involving tear film instability and hyperosmolarity, inflammation and damage to the ocular surface and neurosensory alterations an etiological role ". Accurate diagnosis and classification of dry eye is complicated by the heterogeneous nature of the disease and the variability of signs and symptoms.
The Ocular Surface Analyzer (OSA) is the new tool for the individual analysis of the tear film that allows a rapid and detailed structural investigation of the tear composition and the investigation of all layers, namely lipids, aqueous and mucin. OSA also helps identify the type of DED and determine which layers can be treated with a specific treatment, in relation to the type of deficiency. Three-dimensional (3D) meibomian gland imaging: The revolutionary introduction of 3D meibomian - 3D imaging of the gland offers the doctor two distinct benefits. Firstly, it allows you to confirm the presence of abnormal glands compared to that of a healthy person in a 3D format, and secondly, it provides a clear picture to share with the patient to help the possible cause of his discomfort.
Intense pulsed light therapy (IPL) is a relatively new treatment for evaporative dry eye and rosacea. Using filters in the IPL handpiece, the light spectrum emitted by the flash lamp can be absorbed by oxyhemoglobin. The light is converted into heat-inductive ablation of the vascular structures. This process of photothermolysis is one of the proposed mechanisms of action of IPL for dry eye, in which the wavelengths selectively destroy blood vessels by targeting chromophores in the blood vessels. The destruction of telangiectasias along the eyelid prevents the access of inflammatory mediators to the Meibomian glands. Other possible mechanisms include a mild local heating effect to allow better meibum expression and the destruction of bacteria that cause inflammation at the meibomian gland.