Assessment of Tear Meniscus Changes Before and After Dacryocystorhinostomy Using Anterior Segment Optical Coherence Tomography

Abstract Background Tear meniscus is one of the most important indices for therapeutic evaluation in treatment obstruction lacrimal drainage system, which can be assessed by slit lamp examination and fluorescein dye disappearance test as a semi quantitative measurement. Recently Anterior Segment Optical Coherence Tomography has enabled noninvasive assessment tear meniscus. Objective To evaluate if measurement anterior segment OCT(AS-OCT) reliable method improvement after Dacryocystorhinostomy (DCR) compared to other known methods include passages irrigation. Patients Methods A prospective interventional study that included 16 eyes from 15 patients with primary acquired nasolacrimal duct who received external (ex-DCR) March 2019 till November 2019, were evaluated prospectively on their height (TMH), area (TMA), volume (TMV) changes AS-OCT. Measurements performed before surgery 3 months surgery. Results The results showed highly significant decrease all parameters (TMH, TMA, TMV) DCR (PANDO), we concluded AS-OCT TM noninvasively quantitatively, therefore it used Conclusion Perioperative ex-DCR quantitatively use AS-OCT, DCR,