Published in:
01-06-2008 | Retinal Disorders
Correlation between foveal structure and visual outcome following macular hole surgery: a spectral optical coherence tomography study
Authors:
Zofia Michalewska, Janusz Michalewski, Slawomir Cisiecki, Ron Adelman, Jerzy Nawrocki
Published in:
Graefe's Archive for Clinical and Experimental Ophthalmology
|
Issue 6/2008
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Abstract
Purpose
The aim of this paper is to evaluate the retinal structure after macular hole surgery and to study the correlation of structural findings with final functional outcomes, using high-speed, high-resolution spectral optical coherence tomography (SOCT).
Methods
Sixty-eight eyes of 60 patients with full-thickness macular holes were included in the study. All patients underwent pars plana vitrectomy with trypan blue staining and internal limiting membrane (ILM) peeling. Patients were evaluated by SOCT, with 6 μm axial and 12–18 μm transverse resolution and three-dimensional images of the retina.
Results
There were four different types of macular hole closure: U-shape, V-shape, irregular and flat/open. The following retinal abnormalities were observed in postoperative scans: photoreceptor irregularities, lack of photoreceptors (photoreceptor defect), cysts in outer retinal layers, nerve fiber layer defects, lesion of all retinal layers, and RPE defects. It was possible to evaluate photoreceptor defects on a three-dimensional image. Retinal thickness in the fovea was also measured.
Conclusions
Because of excellent resolution, SOCT is capable of visualization of retinal defects after macular hole surgery. Three-dimensional examination is adequate for evaluation of photoreceptor defects. Good postoperative visual acuity is correlated with U-shape closure, normal foveal thickness and absence of photoreceptor layer defects.