Korean J Ophthalmol.  1997 Jun;11(1):1-6. 10.3341/kjo.1997.11.1.1.

Short-term change of optic nerve head topography after trabeculectomy in adult glaucoma patients as measured by Heidelberg retina tomograph

• Park KH
• Kim DM
• Youn DH

• KMID: 754199
• DOI: http://doi.org/10.3341/kjo.1997.11.1.1

Abstract

Using Heidelberg Retina Tomograph (HRT, Heidelberg Engineering, Heidelberg, Germany) we investigated whether reversal of glaucomatous optic disc cupping occurs in adult glaucoma patients following intraocular pressure (IOP) reduction by trabeculectomy, and whether topographic change in the optic disc differs according to region. Thirteen eyes of 13 glaucoma patients in whom IOP reduction was 25% or more at postoperative follow-up of 2 months were enrolled in the study. Cup/disc area ratio had decreased significantly, while rim area and rim volume showed significant increases (p < 0.05, Wilcoxon signed rank test). Among the optic disc sectors, rim area in the superior and inferior quadrants, especially in the superotemporal and inferotemporal octant, had increased significantly. The decrease in maximum cup death correlated significantly with the recent IOP reduction (r = 0.698, p = 0.016). Reversal of glaucomatous disc cupping after IOP reduction following trabeculectomy in adult patients as confirmed by HRT. Furthermore, the regions of selective reversal in the superior and inferior quadrants coincided with those parts of the optic nerve head in which early functional and structural glaucomatous damage has been known to occur.

MeSH Terms

Adult
Aged
Female
Follow-Up Studies
Glaucoma/surgery
Glaucoma/physiopathology*
Human
Image Processing, Computer-Assisted/methods
Intraocular Pressure
Male
Middle Age
Optic Disk/physiopathology*
Postoperative Period
Tomography/methods*
Trabeculectomy*