Effect of Steep Trendelenburg in Laparoscopic Surgery on IOP & RNFL Thickness

Carmel Medical Center50 enrolled

Overview

The effect of Steep Trendelenburg position used during laparoscopic surgery on intraocular pressure during surgery and on the retinal nerve fiber thickness after surgery

To measure IOP and RNFL thickness in subjects undergoing laparoscopic operations in steep trendelenburg before, during, and after the operation

Study Type

INTERVENTIONAL

Allocation

Purpose

DIAGNOSTIC

Masking

NONE

Enrollment

Conditions

Intraocular Pressure Retinal Nerve Fiber Bundle Deficiency

Interventions

OCT (Optical coherence tomography)DIAGNOSTIC_TEST

RNFL AND IOP MEASUREMNTS

Eligibility

Sex: ALLMin age: 40 YearsMax age: 120 YearsHealthy volunteers:

Medical Language ↔ Plain English

Inclusion Criteria: * SUBJECTS INTENDING TO UNDERGO LAPROSCOPIC SERGURY WHICH HAVE NO EYE DISEASES Exclusion Criteria: * SUBJECT WITH EYES DISEASE * PREGNANCY DURING THE STUDY PERIOD

Outcomes

Primary Outcomes

Intra Ocular Pressure (IOP)

IOP measurement will be taken before, during and after surgery using ICARE tonometer

Time frame: Change in IOP from baseline to IOP during surgery and to one week and to three months following surgery

Retinal Nerve Fiber Layer Thickness (RNFL) using OCT

RNFL measurement will be taken before and after surgery using spectralis OCT

Time frame: Change in OCT RNFL thickness from baseline to OCT RNFL thickness during surgery and to one week and to three months following surgery

Data from ClinicalTrials.gov

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