Analysis of Treatment Efficacy of Intense Pulsed Light (M22) for Meibomian Gland Dysfunction with Demodex Mites

Abstract

Objective

To investigate the effectiveness of intense pulsed light (M22) in treating patients with meibomian gland dysfunction (MGD) caused by demodex mites.

Methods

A total of 100 patients (100 eyes) diagnosed with demodex mites through microscopic examination at Shanxi Bethune Eye Clinic between June 2021 and May 2023 were selected using convenience sampling. The patients were randomly divided into two groups: an experimental group (n=50) and a control group (n=50). The control group received comprehensive treatment consisting of artificial tears, warm compress, anti-inflammatory eye ointment, hypochlorous acid cleansing, okra cotton pad, and meibomian gland massage. In addition to the comprehensive treatment, the experimental group received intense pulsed light (M22) therapy. After 8 weeks of treatment, the mite clearance rate and cure rate of dry eye were measured for both groups. The recurrence rate of dry eye was also observed 4 weeks after discontinuing M22 treatment.

Results

The experimental group achieved a mite clearance rate of 88.0%, while the control group had a rate of 58.0%, with a statistically significant difference (χ² = 5.43, P = 0.017). Regarding the cure rate of dry eye, the experimental group showed a rate of 92.0%, while the control group had a rate of 82.0%, with a statistically significant difference (χ² = 3.61, P = 0.021). In terms of the recurrence rate of dry eye, the experimental group exhibited a rate of 13.04%, while the control group had a rate of 26.83%, with a statistically significant difference (χ² = 4.18, P = 0.016).

Conclusion

Intense pulsed light (M22) demonstrated superior efficacy in eradicating demodex mites, treating dry eye, and maintaining the treatment’s effectiveness compared to comprehensive treatment with medication in patients suffering from meibomian gland dysfunction with demodex mites.

Keywords:

• intense pulsed light
• meibomian gland dysfunction
• dry eye

Data Sharing Statement

All data generated or analyzed during this study are included in this published article.

Ethics Approval and Consent to Participate

This study was conducted in accordance with the Declaration of Helsinki and approved by the ethics committee of Shanxi Bethune Hospital.

Written informed consent was obtained from all participants.

Author Contributions

All authors made a significant contribution to the work reported, whether that is in the conception, study design, execution, acquisition of data, analysis and interpretation, or in all these areas; took part in drafting, revising or critically reviewing the article; gave final approval of the version to be published; have agreed on the journal to which the article has been submitted; and agree to be accountable for all aspects of the work.

Disclosure

All of the authors had no any personal, financial, commercial, or academic conflicts of interest separately.

Additional information

Funding

There is no funding to report.