What question did this study set out to answer?

This study aims to assess the impact of pars plana vitrectomy on dry eye symptoms and identify related risk factors.

Post-vitrectomy dry eye: a prospective study of ocular surface changes and associated risk factors

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Prospective study finds transient ocular surface changes post-vitrectomy, with older age as a risk factor.

This study aims to assess the impact of pars plana vitrectomy on dry eye symptoms and identify related risk factors.
Prospective study involving 60 patients undergoing primary pars plana vitrectomy.
Dry eye assessments included Schirmer test, TBUT, corneal staining, tear osmolarity, and OSDI questionnaire at baseline, one month, and three months post-op.
Statistical analysis was performed to evaluate correlations and associations.
Mean Schirmer scores declined from 11.7 mm at baseline to 8.5 mm at one month (p = 0.014), improving towards baseline by three months.
Increased conjunctival staining and lubricant use were observed at one month (p = 0.039 and p = 0.014).
Older age and longer surgical duration showed significant association with lower Schirmer values and greater susceptibility to dry eye.

Ahmad et al. (2026) studied this question.

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