The goal of this clinical trial is to compare the effectiveness of adjunctive low-level light therapy (LLLT) to intense pulsed light (IPL) versus intense pulsed light (IPL) alone for the treatment of meibomian gland dysfunction (MGD). The main question it aims to answer is does the adjunctive of low-level light therapy (LLLT) to intense pulsed light (IPL) provide more beneficial treatment effects than intense pulsed light (IPL) alone in treating meibomian gland dysfunction (MGD) patients? Participants will be randomized into 2 groups: adjunctive low-level light therapy (LLLT) to intense pulsed light (IPL) group (ALLLT +IPL) and IPL alone group.
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Lipid layer thickness (LLT)
Timeframe: baseline, 2 weeks, 4 weeks, 12 weeks, and 24 weeks post treatment