Publications by authors named "Akira Aoyama"
Purpose: To determine the target intraocular pressure (IOP) level in normal-tension glaucoma (NTG) for visual field (VF) stability following trabeculectomy.
Methods: Forty eyes of 40 patients who underwent trabeculectomy were enrolled in this study. Progression was determined by a decrease in the Advanced Glaucoma Intervention Study VF defect score of four or more points.
Three-dimensional reconstruction of optic nerve head from stereo fundus images and its quantitative estimation.
Annu Int Conf IEEE Eng Med Biol Soc
April 2008
Article Synopsis
- Understanding the 3-D structure of the optic nerve head (ONH) is crucial for glaucoma diagnosis, and accurate quantitative reconstruction is necessary.
- The proposed technique involves four key steps: cutting out the ONH from fundus images, registering stereo image pairs, detecting disparities, and calculating depth.
- The depth measurements from stereo images aligned closely with those obtained using the Heidelberg Retina Tomograph (HRT), demonstrating that stereo fundus images are effective for assessing ONH depth for glaucoma diagnosis.
Long-term therapeutic outcome of acute primary angle closure in Japanese.
Jpn J Ophthalmol
December 2007
Purpose: To investigate the long-term clinical course of acute primary angle closure (APAC) and acute primary angle-closure glaucoma (APACG) in Japanese patients.
Methods: We retrospectively reviewed our records of 66 consecutive APAC or APACG eyes observed between February 1992 and December 2003 (mean follow-up, 42.1 months).
Automated detection algorithm for arteriolar narrowing on fundus images.
Conf Proc IEEE Eng Med Biol Soc
October 2012
We have developed a computer-aided diagnosis system (CAD) to detect abnormalities in fundus images. In Japan, ophthalmologists usually detect hypertensive changes by identifying arteriolar narrowing and focal arteriolar narrowing. The purpose of this study is to develop an automated method for detecting arteriolar narrowing and focal arteriolar narrowing on fundus images.
View Article and Find Full Text PDF