Analysis of spectral domain optical coherence tomography findings in occult macular dystrophy

作者：Kim Young Gyun; Baek Seung Hee; Moon Sang Woong; Lee Ho Kyung; Kim Ungsoo Samuel^*

来源：Acta Ophthalmologica, 2011, 89(1): E52-E56.

DOI：10.1111/j.1755-3768.2010.01958.x

• multifocal electroretinogram
• occult macular dystrophy
• spectral domain optical coherence tomography

Purpose: To describe findings of spectral domain optical coherence tomography (SD-OCT) in the diagnosis of occult macular dystrophy (OMD).
Materials and Methods: Five visually disturbed patients who had shown normal findings in full field electroretinogram (ERG), fundus photography and fluorescein angiography but abnormal findings in multifocal ERG had undergone SD-OCT. The morphologic changes in retina and macular thickness were detected and imaged by SD-OCT. We analysed the results of SD-OCT including macular thickness, inner segment and outer segment (IS/OS) boundary and external limiting membrane (ELM).
Results: Mean age was 41.6 (22-63) in three male and two female patients in this study. Mean central foveal thickness was 142.9 (76-161) mu m. All patients had shown decreased bowing of IS/OS boundary, and five of nine eyes were noted with disrupted IS/OS boundary of the photoreceptors according to SD-OCT. The interruption of external limiting membrane was noted in three of nine eyes.
Conclusions: Spectral domain optical coherence tomography findings are useful in diagnosing OMD. Morphologic changes of the retina including deformity of the OS/IS boundary of the photoreceptors, disruption of the ELM and decreased foveal thickness may be important characteristics to consider when determining the pathophysiology and diagnosing criteria of OMD.

• 出版日期2011-2