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. 2014 Feb 7;38(2):62-68.
doi: 10.3109/01658107.2013.855240. eCollection 2014.

Changes in Visual Function over Time in Koreans with Non-arteritic Anterior Ischaemic Optic Neuropathy

Ji Woong Chang  1 , Jin Choi  2 , Young Suk Yu  3 , Seong-Joon Kim  3
Affiliations

Changes in Visual Function over Time in Koreans with Non-arteritic Anterior Ischaemic Optic Neuropathy

Ji Woong Chang et al. Neuroophthalmology. .

Abstract

Non-arteritic anterior ischaemic optic neuropathy (NAION) causes severe visual loss in elderly patients. However, there are not much data of clinical course of NAION in Asian patients. To evaluate changes in visual acuity and visual field defects associated with non-arteritic anterior ischaemic optic neuropathy (NAION) among Korean patients, the medical records of 50 eyes from 43 patients with NAION patients seen from 1989 to 2011 were reviewed. A significant change in visual acuity was defined as a three-line change in Snellen acuity. Visual field defects were evaluated with Goldmann perimetry. Changes in the visual field were evaluated using the grid method. Thirty-eight percent of eyes showed improvement, 54% showed no change, and 8% showed deterioration of visual acuity at the last follow-up. Thirty-four percent of eyes showed improvement, 54% showed no change, and 12% showed deterioration of the visual field at the last follow-up. Most improvement in visual acuity occurred during the first month after the initial visit and in visual field between the first and third months of follow-up. The prognosis of visual acuity in association with NAION was worse in Korean patients as compared with Western studies. However, improved prognosis of visual field defects might come from the use of different methods for evaluation of the visual field.

Keywords: Ischaemic optic neuropathy; visual acuity; visual fields.

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Figures

FIGURE 1
FIGURE 1
The change in visual acuity during the follow-up. Most Improvement of visual acuity occurred during the first month after the initial visit.
FIGURE 2
FIGURE 2
The change in visual field defects. Most Improvement of visual field defect occurred between the first and third months of follow-up.
See this image and copyright information in PMC

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