EFFECT OF LUBRICANTS ON CORNEAL THICKNESS AFTER VITRECTOMY.
Retina(2020)
摘要
PURPOSE:This study examines the impact of corneal surface lubricants used during pars plana vitrectomy on corneal edema.METHODS:This prospective, observational, clinical study occurred at an academic institution. Participants were individuals aged 18 years and older who had already consented to undergo pars plana vitrectomy, without pre-existing corneal pathology. A corneal lubricant was chosen by the surgeon. Corneal thickness was measured preoperatively and postoperatively using pachymetry and anterior segment optical coherence tomography (AS-OCT). Main outcome measure was change in corneal thickness as measured by pachymetry.RESULTS:Forty-one patients completed the study protocol. The 23 subjects in the SHCS group had a significantly smaller increase in corneal thickness as measured by pachymetry compared with the 18 subjects in the HPMC group (29.9 μm vs. 58.1 μm, P value 0.02). When measured by anterior segment optical coherence tomography, the SHCS group had a smaller increase in corneal thickness compared with the HPMC group (0.04 mm vs. 0.06 mm, P value 0.09) but did not reach significance.CONCLUSION:SHCS is associated with reduced postoperative increase in corneal pachymetry as compared to HPMC.
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关键词
pars plana vitrectomy,surgical technique,corneal edema,corneal surface lubricants
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