A PHP Error was encountered

Severity: Warning

Message: file_get_contents(https://...@pubfacts.com&api_key=b8daa3ad693db53b1410957c26c9a51b4908&a=1): Failed to open stream: HTTP request failed! HTTP/1.1 429 Too Many Requests

Filename: helpers/my_audit_helper.php

Line Number: 176

Backtrace:

File: /var/www/html/application/helpers/my_audit_helper.php
Line: 176
Function: file_get_contents

File: /var/www/html/application/helpers/my_audit_helper.php
Line: 250
Function: simplexml_load_file_from_url

File: /var/www/html/application/helpers/my_audit_helper.php
Line: 3122
Function: getPubMedXML

File: /var/www/html/application/controllers/Detail.php
Line: 575
Function: pubMedSearch_Global

File: /var/www/html/application/controllers/Detail.php
Line: 489
Function: pubMedGetRelatedKeyword

File: /var/www/html/index.php
Line: 316
Function: require_once

Visual field indexes for version 3.0 of frequency doubling perimetry in patients with glaucoma. | LitMetric

Purpose: A new version of frequency doubling perimetry was compared to a former version in patients with glaucoma.

Design: Prospective observational study.

Method: Thirty-two patients with glaucoma were examined twice sequentially in one eye with threshold c-20 of frequency doubling perimetry version 2.6. Within 3 months, the same eye was again examined twice sequentially, this time using the new version 3.0. Mean deviation, pattern standard deviation, short-term fluctuation, intraocular pressure at examination, and test duration were compared between versions.

Results: No significant difference was found in mean deviation, pattern standard deviation, intraocular pressure, or short-term fluctuation between versions.

Conclusions: Version 3.0 took less time to perform the threshold test than did version 2.6. Version 3.0 of the frequency doubling perimetry program took less time to perform and showed similar values of visual field indexes when compared with version 2.6.

Download full-text PDF

Source
http://dx.doi.org/10.1016/s0002-9394(02)01850-0DOI Listing

Publication Analysis

Top Keywords

frequency doubling
16
doubling perimetry
16
version frequency
12
version
9
visual field
8
field indexes
8
patients glaucoma
8
compared version
8
examined sequentially
8
deviation pattern
8

Similar Publications

Want AI Summaries of new PubMed Abstracts delivered to your In-box?

Enter search terms and have AI summaries delivered each week - change queries or unsubscribe any time!