<clinical_study>
  <!-- This xml conforms to an XML Schema at:
    https://clinicaltrials.gov/ct2/html/images/info/public.xsd -->
  <required_header>
    <download_date>ClinicalTrials.gov processed this data on September 20, 2023</download_date>
    <link_text>Link to the current ClinicalTrials.gov record.</link_text>
    <url>https://clinicaltrials.gov/ct2/show/NCT01683942</url>
  </required_header>
  <id_info>
    <org_study_id>NesherMimouni</org_study_id>
    <nct_id>NCT01683942</nct_id>
  </id_info>
  <brief_title>A New Reproducible Method of Measuring C/D Ratio of Digital Stereo Images of Optic Disc</brief_title>
  <official_title>A New Reproducible Method of Measuring C/D Ratio of Digital Stereo Images of Optic Disc</official_title>
  <sponsors>
    <lead_sponsor>
      <agency>Meir Medical Center</agency>
      <agency_class>Other</agency_class>
    </lead_sponsor>
  </sponsors>
  <source>Meir Medical Center</source>
  <oversight_info>
    <has_dmc>No</has_dmc>
  </oversight_info>
  <brief_summary>
    <textblock>
      Development of a novel computer software that will assist in measuring the cup/disc ratio in&#xD;
      digital stereo optic disc images.&#xD;
    </textblock>
  </brief_summary>
  <overall_status>Completed</overall_status>
  <start_date>August 2012</start_date>
  <study_type>Observational</study_type>
  <has_expanded_access>No</has_expanded_access>
  <study_design_info>
    <observational_model>Case-Only</observational_model>
    <time_perspective>Retrospective</time_perspective>
  </study_design_info>
  <enrollment type="Actual">250</enrollment>
  <condition>Developing Novel Technique of Measuring C/D Ratio From Digital Stereo Optic Disc Images</condition>
  <condition>Intraobserver Reproducibility of C/D Measurements</condition>
  <condition>Interobserver Variability of C/D Measurements</condition>
  <eligibility>
    <study_pop>
      <textblock>
        500 consecutive digitalized optic disc photos of 250 patients attending the Glaucoma&#xD;
        Service between 1996-2012 will be extracted from a database of optic disc photos at the&#xD;
        Glaucoma Service of the Ophthalmology Department, Meir Medical Center, Kfar Saba, Israel.&#xD;
      </textblock>
    </study_pop>
    <sampling_method>Probability Sample</sampling_method>
    <criteria>
      <textblock>
        Inclusion Criteria:&#xD;
&#xD;
        Patients who attended the Glaucoma service Patients with at least one pair of documented&#xD;
        digital stereo optic disc images Satisfactory Quality of image allowing Cup Disc Ratio&#xD;
        Evaluation&#xD;
&#xD;
        Exclusion Criteria:&#xD;
&#xD;
        Unsatisfactory Quality of image allowing Cup Disc Ratio Evaluation Novel software technique&#xD;
        unable to process or analyze the image&#xD;
      </textblock>
    </criteria>
    <gender>All</gender>
    <minimum_age>N/A</minimum_age>
    <maximum_age>N/A</maximum_age>
    <healthy_volunteers>No</healthy_volunteers>
  </eligibility>
  <verification_date>September 2012</verification_date>
  <study_first_submitted>September 10, 2012</study_first_submitted>
  <study_first_submitted_qc>September 10, 2012</study_first_submitted_qc>
  <study_first_posted type="Estimate">September 12, 2012</study_first_posted>
  <last_update_submitted>September 10, 2012</last_update_submitted>
  <last_update_submitted_qc>September 10, 2012</last_update_submitted_qc>
  <last_update_posted type="Estimate">September 12, 2012</last_update_posted>
  <responsible_party>
    <responsible_party_type>Sponsor</responsible_party_type>
  </responsible_party>
  <keyword>cup disc ratio measurement</keyword>
  <keyword>digital stereo optic disc images</keyword>
  <!-- Results have not yet been posted for this study                                          -->
</clinical_study>


download date: ClinicalTrials.gov processed this data on September 20, 2023
link text: Link to the current ClinicalTrials.gov record.
url: https://clinicaltrials.gov/ct2/show/NCT01683942
org study id: NesherMimouni
nct id: NCT01683942
lead sponsor: 
has dmc: No
Development of a novel computer software that will assist in measuring the cup/disc ratio in
      digital stereo optic disc images.
observational model: Case-Only
time perspective: Retrospective
study pop: 
sampling method: Probability Sample
criteria: 
gender: All
minimum age: N/A
maximum age: N/A
healthy volunteers: No
responsible party type: Sponsor