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How Well Does the Data Obtained From Heidelberg Edge Perimeter Visual Field Compare to Standard Octopus Visual Field

2015-08-18 20:08:23 | BioPortfolio

Summary

The purpose of this study is to compare standard automated perimetry (SAP) using the Heidelberg Edge Perimeter (HEP) with the Octopus Visual Field (OVF) analyzer and determine test-retest reliability of both parameters in detecting glaucomatous visual field losses.

Description

After obtaining informed consent, each patient will undergo the following tests:

1. Standard ophthalmic examination (usual care): Best-corrected visual acuity testing, slit lamp biomicroscopy, Goldman applanation tonometry, corneal thickness measurement and fundoscopy.

2. G-top strategy using the OVF Analyzer (G-Top, Koeniz, Switzerland). The MD, PSD will be recorded.

3. HEP SAP using the advanced staircase thresholding algorithm (ASTA). This will be performed once. The MD and PSD will be recorded.

4. Spectralis OCT using the GMPE program will be performed once in a non - dilated condition. The RNFL thickness in 6 sectors (SN, ST, IN, IT, N and T) along with the structure-function correlation will be recorded.

The investigators will randomize the order of the HEP SAP III and the OVF, and the order of the eye tested (right vs. left) if both eyes of the patients meet the inclusion criteria. Forty eyes (40) of patients with glaucoma will be randomly chosen from this group and will be asked to return in 3-6 month for retesting HEP and OVF.

Study Design

Allocation: Randomized, Endpoint Classification: Efficacy Study, Intervention Model: Parallel Assignment, Masking: Open Label, Primary Purpose: Diagnostic

Conditions

Glaucoma

Intervention

Heidelberg Edge Perimeter, Octopus Visual Field

Status

Active, not recruiting

Source

Wills Eye

Results (where available)

View Results

Links

Published on BioPortfolio: 2015-08-18T20:08:23-0400

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