[
    {
        "id": "osp-12641",
        "type": "article-journal",
        "title": "Interobserver reliability when using the Van Herick method to measure anterior chamber depth",
        "author": [
            {
                "family": "Javed",
                "given": "Ahmed"
            },
            {
                "family": "Loutfi",
                "given": "Mohamed"
            },
            {
                "family": "Kaye",
                "given": "Stephen"
            },
            {
                "family": "Batterbury",
                "given": "Mark"
            }
        ],
        "URL": "https://omanscience.com/en/articles/interobserver-reliability-when-using-the-van-herick-method-to-measure-anterior-chamber-depth",
        "language": "en",
        "issued": {
            "date-parts": [
                [
                    2017
                ]
            ]
        },
        "container-title": "Oman Journal of Ophthalmology",
        "volume": "10",
        "issue": "1",
        "page": "9-12",
        "DOI": "10.4103/ojo.ojo_142_2014",
        "publisher": "Medknow Publications",
        "ISSN": "0974-620X",
        "abstract": "Introduction: The Van Herick method is a quick and easy way to estimate anterior chamber depth, which allows grading of patients according to the likelihood of having primary acute closed-angle glaucoma. However, as the test is highly subjective, measurements and thus grading may vary between observers.\n\nAim: The aim of this study was to investigate the degree of variation of Van Herick scores among observers and to investigate agreement between temporal and nasal scores.\n\nMaterials and methods: A total of 15 observers measured the temporal and nasal Van Herick scores from 18 patients, grouped into cohorts at outpatient glaucoma and corneal clinic. Analysis of data involved assigning a patient to a Van Herick grade based on the median score and then determining the mean standard deviation and percentage consistency for each grade.\n\nResults: We found that Grades 1 and 4 had a high mean percentage consistency (80% and 84.6%, respectively) and a low mean standard deviation (0.45 and 0.26, respectively). Grades 2 and 3 had low mean percentage consistencies (57.5 and 5, respectively) and high mean standard deviations (0.71 and 0.89, respectively). The temporal and nasal scores showed good agreement (κ = 0.61P < 0.001).\n\nConclusion: The Van Herick score has a good interobserver reliability for Grades 1 and 4; however, Grades 2 and 3 require further tests such as gonioscopy or ocular coherence tomography. Temporal and nasal scores demonstrated good agreement; therefore, if the nasal score cannot be measured due to nasal bridge size, the temporal can be used as an approximation."
    }
]