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Hong’s grading for evaluating anterior chamber angle width

  • Clinical Investigation
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Japanese Journal of Ophthalmology Aims and scope Submit manuscript

Abstract

Purpose

To compare Hong’s grading method with anterior segment optical coherence tomography (AS-OCT), gonioscopy, and the dark-room prone-position test (DRPT) for evaluating anterior chamber width.

Methods

The anterior chamber angle was graded using Hong’s grading method, and Hong’s angle width was calculated from the arctangent of Hong’s grades. The correlation between Hong’s angle width and AS-OCT parameters was analyzed. The area under the receiver operating characteristic curve (AUC) for Hong’s grading method when discriminating between narrow and open angles as determined by gonioscopy was calculated. Correlation analysis was performed between Hong’s angle width and intraocular pressure (IOP) changes determined by DRPT.

Results

A total of 60 subjects were enrolled. Of these subjects, 53.5 % had a narrow angle. Hong’s angle width correlated significantly with the AS-OCT parameters (r = 0.562–0.719, P < 0.01). A Bland–Altman plot showed relatively good agreement between Hong’s angle width and the angle width obtained by AS-OCT. The ability of Hong’s grading method to discriminate between open and narrow angles was good (AUC = 0.868, 95 % CI 0.756–0.942). A significant linear correlation was found between Hong’s angle width and IOP change determined by DRPT (r = −0.761, P < 0.01).

Conclusions

Hong’s grading method is useful for detecting narrow angles. Hong’s grading correlated well with AS-OCT parameters and DRPT.

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Acknowledgments

This study was supported by a grant from the Boramae Medical Center Research Fund (2011).

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Authors and Affiliations

  1. Department of Ophthalmology, Seoul National University College of Medicine, #28 Yongon-dong, Chongno-gu, Seoul, 110-744, Korea

    Seok Hwan Kim & Ki Ho Park

  2. Department of Ophthalmology, Seoul National University Boramae Hospital, Seoul, Korea

    Seok Hwan Kim

  3. Department of Ophthalmology, Kyung Hee University Hospital at Gangdong, Kyung Hee University College of Medicine, Seoul, Korea

    Ja Heon Kang

  4. Department of Ophthalmology, Seoul National University Hospital, Seoul, Korea

    Ki Ho Park

  5. Glaucoma Service, Dr. Hong’s Eye Clinic, Seoul, Korea

    Chul Hong

Authors
  1. Seok Hwan Kim
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  2. Ja Heon Kang
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  3. Ki Ho Park
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  4. Chul Hong
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Corresponding author

Correspondence to Ki Ho Park.

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Kim, S.H., Kang, J.H., Park, K.H. et al. Hong’s grading for evaluating anterior chamber angle width. Jpn J Ophthalmol 56, 551–558 (2012). https://doi.org/10.1007/s10384-012-0180-1

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  • DOI: https://doi.org/10.1007/s10384-012-0180-1

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