The supplement n-acetylcysteine may be effective for blepharitis. Prognosis Blepharitis is a chronic condition that has periods of exacerbation and remission. Patients should be informed that symptoms can frequently improve but are rarely eliminated. Infrequently, severe blepharitis can result in permanent alterations in the eyelid margin or vision loss from superficial keratopathy, corneal neovascularization, and ulceration. Patients with an inflammatory eyelid lesion that appears suspicious of malignancy should be referred to an appropriate specialist. Research A study conducted in November 2017 detected a correlation between blepharitis and early-onset metabolic syndrome (MetS). To investigate the relationship between blepharitis and MetS, researchers used the Longitudinal Health Insurance Database in Taiwan. Results indicated that hyperlipidaemia and coronary artery disease were significantly correlated with the prior development of blepharitis. Therefore, blepharitis was shown to be significantly related to MetS and can serve as an early indication of the condition. In another study, the presence of Demodex mites was shown to be a common cause of blepharitis. However, the pathogenesis of demodicosis is still unclear. In this study, researchers provided a diagnosis of the disease and proposed diagnostic criteria for Demodex blepharitis. References External links blepharitis Resource Guide from the National Eye Institute (NEI). eMedicine Health: Eyelid Inflammation (blepharitis) Disorders of eyelid, lacrimal system and orbit Inflammations