Evaluation of Dry Eye and Meibomian Gland Dysfunction After Cataract Surgery

Meibomian gland dysfunction (MGD) is a common and important disease has been investigated the pathophysiology, diagnosis, treatment modalities of MGD, however, the changes of MGD after the cataract surgery, the most popular surgery to ophthalmologist, had not been evaluated. The investigators evaluated parameters related with MGD including lid margin abnormalities, meibomian gland expressibility and meibography before and after surgery.

Inclusion Criteria:

1. Patients scheduled for cataract surgery

Exclusion Criteria:

1. other comorbid ocular diseases such as ocular allergies.
2. continuous use of topical ocular medications before surgery
3. histories of ocular surgery, or ocular injury
4. Already had severe obstructive MGD before surgery, abnormal findings on lid margin (> 3 positive findings), reduced meibum expression (> grade 2), and obstructed gland dropout (meibography score > 3)