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Purpose:  To evaluate the morphology changes of meibomian glands (MGs) after cataract surgery.   Setting:  Hangzhou Branch of the Eye Hospital of Wenzhou Medical University, Zhejiang, China.   Methods:  In this contra-lateral eye study, 40 patients received unilateral cataract surgery for age-related cataract. All the patients underwent the evaluation of non-invasive break-up time (NIBUT) and lower tear meniscus height (TMH) before the surgery and 6 months post-operatively. The MGs were evaluated via ImageJ and Meibomian Gland Bio-image Analyzer. MG dropout, length, width, area, gland diameter deformation index (DI), and gland signal index (SI) were recorded.   Results:  MG length, width, area, DI, and SI were significantly decreased after cataract surgery in the study group (operated eyes,  P  &amp;lt; 0.001,  P  = 0.003,  P  &amp;lt; 0.001,  P  = 0.001, and  P  &amp;lt; 0.001, respectively) and showed no significant changes in the control group (non-operated eyes) (all  P  &amp;gt; 0.05). MG loss increased more in the study group ( P  = 0.030), and the changes in TMH and NIBUT were not significantly different between the two eyes (both  P  &amp;gt; 0.05).   Conclusion:  Cataract surgery aggravated meibomian gland morphology, such as MG loss, MG length, width, area, and SI, and produced no change in NIBUT and TMH at 6 months post-operatively.

Meibomian Gland Morphology Changes After Cataract Surgery: A Contra-Lateral Eye Study