rss
Br J Ophthalmol 1999;83:559-562 doi:10.1136/bjo.83.5.559
  • Original Article
    • Clinical science

Ultrasound biomicroscopic measurement of development of anterior chamber angle

  1. Hiroshi Kobayashia,b,
  2. Hisako Onoa,
  3. Junichii Kiryub,
  4. Kaori Kobayashic,
  5. Takehisa Kondod
  1. aDepartment of Ophthalmology, Amagasaki Hospital, Amagasaki, Japan, bDepartment of Ophthalmology and Visual Science, Graduate School of Medicine Kyoto University, Kyoto, Japan, cDepartment of Ophthalmology, Osaka Red Cross Hospital, Osaka, Japan, dDepartment of Ophthalmology, Kobe City General Hospital, Kobe, Japan
  1. Hiroshi Kobayashi, Department of Ophthalmology, Amagasaki Hospital, 1-1-1 Higashi-daimotsu-cho, Amagasaki, Hyogo, 660, Japan.
  • Accepted 25 November 1998

Abstract

AIM To establish normative values for the anterior segment in normal infants and children in relation to age.

METHODS Anterior segments were measured in 46 normal infants and children (21 males and 25 females, aged from 1 to 60 months (mean 17.09 (SD 16.99) months)), by use of ultrasound biomicroscopy.

RESULTS Anterior chamber depth, trabecular-iris angle, angle opening (trabecular-iris) distances at 250 and 500 μm from the scleral spur, and the thickness of the thickest part of the iris were 1724–3473 μm (2505 (SD 480) μm), 15.35–44.79° (28.74 (7.46)°), 116–367 μm (247.4 (65.9) μm), 166–509 μm (349.5 (87.1) μm), and 249–579 μm (434.6 (74.6) μm), respectively. All factors in this study showed a significant correlation with logarithm of age (r = 0.937, p = 0.0001;r = 0.867, p = 0.0001;r = 0.929, p = 0.0001;r = 0.917, p = 0.0001;r = 0.748, p = 0.0001), and significantly correlated with each other.

CONCLUSIONS Ultrasound biomicroscopy is a powerful tool for obtaining precise images and measurement of the development of the anterior segment in infants and children. Normative values were established for anterior segment dimensions in relation to age. Anterior chamber depth, trabecular-iris angle, angle opening distances at 250 and 500 μm from the scleral spur, and iris thickness showed linear increases in relation to logarithm of age.

Footnotes

    This Article

    1. Abstract
    2. Full text
    3. PDF

    Responses

    1. Submit a response
    2. No responses published

    Register for free content

    The full back archive is now available for all BMJ Journals. Institutional subscribers may access the entire archive as part of their subscription. Personal subscribers will also have access to all content when logged in. Non-subscribers who register have free access to all articles published before 2006 right back to volume 1 issue 1. Register here to access the free archive of all BMJ Journals.

    Don't forget to sign up for content alerts so you keep up to date with all the articles as they are published.