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Document Type

Original Article

Abstract

Background: Tear film experience some changes after dacryocystorhinostomy. Detecting these changes is mandatory to reach the proper treatment and good postoperative outcomes.

Objective: This study aims to detect changes in the tear film in patients after dacryocystorhinostomy (DCR) using ocular surface analyzer (OSA).

Patients and Methods: Thirty eyes of twenty studied cases with primary developed nasolacrimal duct obstruction (PANDO) had been contained. They underwent DCR and tear film was assessed clinically, using OSA and shirmer test.

Results: The research found that lipid layer thickness (LLT) was rised from 63.5 nm preoperative to (76.4 nm and 68.07 nm) at one and three month postoperative, respectively. However, tear meniscus height, non invasive break up time, invasive break up time (IBUT) & Schirmer`s test was statistically significantly decreased (P =0.004, 0.012, 0.009 & 0.007), respectively.

Conclusion: Normalization of aqueous tear volume after dacryocystorhinostomy (DCR) was observed using ocular surface analyzer (OSA) by rise lipid layer thickness (LLT), & decrease in TMH, NIBUT, IBUT and Schirmer`s test.

Keywords

Dacryocystorhinostomy, tear, OSA

Subject Area

Ophthalmology

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