Abstract
Purpose
To analyze the conjunctival changes, especially goblet cell populations, following Muller’s muscle conjunctival resection (MMCR) by histologically evaluating pre and post-MMCR specimens.
Methods
This is a retrospective analysis of conjunctival samples sent for histologic evaluation from two patient populations: those who had previously undergone a MMCR and required repeat surgery and controls who underwent a MMCR surgery in a previously unoperated eyelid. Specimens underwent hematoxylin and eosin (H&E) and periodic acid-Schiff (PAS) staining to accentuate goblet cell identification and were evaluated by two ocular pathologists to quantify goblet cell populations and note other anatomical changes. Statistical analysis of goblet cell populations was then performed.
Results
Four samples were identified for each group: (1) post-MMCR and (2) control. The mean age was 67 years in the post-MMCR group and 66 years in the control group. The mean goblet cell population was 7 ± 5 cells/mm in the post-MMCR conjunctiva and was 39 ± 16 cells/mm in the control group, which was statistically significant (p = 0.01). Samples from both groups demonstrated scarring and inflammatory cell infiltrate.
Conclusions
While there was a relative loss of goblet cell populations in the conjunctiva overlying the region of surgery following MMCR, the lack of dry eye symptoms or changes in tear production reported in prior studies suggests that there may be enough goblet cell population reserve in the remaining accessory lacrimal glands and in the unaltered conjunctiva to provide sufficient lubrication and ocular protection.
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The data set is available and uploaded as a supplemental document.
Code availability
N/A.
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All authors contributed to the study conception and design. Material preparation, data collection, and analysis were performed by all of the authors. The first draft of the manuscript was written by Robert Beaulieu MD and all authors commented on previous versions of the manuscript. All authors read and approved the final manuscript.
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This retrospective chart review study was in accordance with the ethical standards of the institutional and national research committee and with the 1964 Declaration of Helsinki and its later amendments or comparable ethical standards. This study was approved by the University of Texas Southwestern Medical Center Institutional Review Board (IRB).
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Beaulieu, R., McDonnell, E., Scofield-Kaplan, S.M. et al. Conjunctival changes following Muller’s muscle conjunctival resection. Int Ophthalmol 42, 1689–1695 (2022). https://doi.org/10.1007/s10792-021-02163-8
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DOI: https://doi.org/10.1007/s10792-021-02163-8