Meibomian gland dysfunction is aVision 20 Review widespread contributor to dry eye syndrome. It is alternatively called MGD, meibomitis, and posterior blepharitis. MGD is a complex condition, but it generally involves swelling in the meibomian glands of the eyelid, which produce the lipids (meibome) that comprise the outer layer of the tear film. The infection may be caused by a clog on the gland outlet at the eyelid margin.
The clog, in turn, may be caused by an eyelid enlargement from allergies or anterior blepharitis (in the front of the eyelid). MGD may also develop from hormonal changes, or dietary customs that affect the thickness of the lipids. Sometimes, the extrusions may seem deeply creamy and viscous, or even toothpaste-like; at other times, a compact fatty ball may coagulate at the entrance, sealing it. Another variation of the dysfunction may be through heavy production of lipids inflaming the eyes, although no blockage of the glands occurs.
The consequence is that because of the dysfunction, the glands extrude low-quality lipids. There may be an excess of or a lack of oil; the oil may be too viscous or too light. The consequence is that there is little stability in the tear film and drying out happens at abnormal rates.https://myshopy.org/vision-20-review/