Abstract
Tilted disc syndrome can cause visual field defects due to an optic disc anomaly. Recent electrophysiological findings demonstrate reduced central outer retinal function with ophthalmoscopically normal maculae. We measured macular sensitivity with the microperimeter and performed psychophysical assessment of mesopic rod and cone luminance temporal sensitivity (critical fusion frequency) in a 52-year-old male patient with tilted disc syndrome and ophthalmoscopically normal maculae. We found a marked reduction of sensitivity in the central 20° and reduced rod- and cone-mediated mesopic visual function. Our findings extend previous electrophysiological data that suggest an outer retinal involvement of cone pathways and present a case with rod and cone impairment mediated via the magnocellular pathway in uncomplicated tilted disc syndrome.
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Acknowledgements
Supported by a Queensland University of Technology Vice Chancellor Research Fellowship (BF) and Australian Research Council Discovery Projects DP0773544 and DP1096354. AJZ is an Australian Research Council APD Research Fellow.
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Feigl, B., Zele, A.J. Macular function in tilted disc syndrome. Doc Ophthalmol 120, 201–203 (2010). https://doi.org/10.1007/s10633-010-9215-4
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DOI: https://doi.org/10.1007/s10633-010-9215-4