It consists of the application of heat and a mechanical massage of the eyelids to increase meibum secretion. Nevertheless, since the final goal of the treatment is to improve the flow of MG secretions, eyelid hygiene is the most common clinical treatment. Some therapies for MGD include improving the environmental humidity, increasing dietary omega-3 fatty acid intake, using artificial tears, or anti-inflammatory therapy for DED. Therefore, it is important to properly manage MGD. DED is an ocular surface anomaly whose prevalence ranges from 5 to 50% worldwide, and it is associated with limitations in performing activities of daily life and even sometimes with depression. Additionally, MGD is present in some cases of aqueous-deficiency DED. MGD is the main cause of evaporative dry eye disease (DED), the most prevalent type of DED. A high-delivery state or hypersecretory MGD is characterized by the presence of a large volume of lipids on the lid margin. Hyposecretory MGD is defined by a reduced release of meibum without MG obstruction. Obstructive MGD is characterized by chemical changes in the meibum or terminal duct obstruction. Low-delivery states are further divided into hyposecretory and obstructive conditions, the obstructive being the most prevalent type. Īccording to the ‘International Workshop on Meibomian Gland Dysfunction’, MGD is classified into two categories based on the meibum: low-delivery and high-delivery states. The crucial role of the MG secretion, also called meibum, is the stabilization of the tear film and the protection of the ocular surface. MGs are sebaceous glands located in the tarsal plates of the eyelids, and their function is to release lipids and proteins to the tear film. Its prevalence varies between 3.5% and 19.9% in the Caucasian population, while it reaches > 60% in the Asian population. This anomaly may result in alterations of the tear film, symptoms of eye irritation, clinical inflammation, and ocular surface disease. Meibomian gland dysfunction (MGD) is a chronic, diffuse abnormality of the meibomian glands (MG), characterized by terminal duct obstruction and changes in the glandular secretion. ![]() Proper counseling of clinicians considering MGD status and patient compliance will help patients to undergo the adequate technique that best suits their condition. ![]() Moreover, intense pulsed light therapy has been demonstrated to improve ocular signs and symptoms alone and in combination with other therapies. Thermal pulsation has been reported to be more efficient than other strategies, and the effects can last up to 12 months. ![]() Likewise, eyelid massaging and cleaning devices are also beneficial for ocular signs and symptoms however, patients usually need more than one session to maintain the therapeutic effect. Some warming and humidity devices have led to an improvement in the signs and symptoms in MGD patients. However, alternative therapies for MGD are emerging on the market. Eyelid hygiene has usually been the most common clinical approach. The most prevalent type of meibomian gland dysfunction (MGD), which is obstructive, is the main cause of evaporative dry eye and is characterized by changes in the meibum composition and duct obstruction.
0 Comments
Leave a Reply. |
AuthorWrite something about yourself. No need to be fancy, just an overview. ArchivesCategories |