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Japanese Journal of Ophthalmology

, Volume 62, Issue 2, pp 249–255 | Cite as

Development and surgical removal of an epiretinal membrane in infantile nystagmus syndrome: a new type of oscillopsia

  • Louis F. Dell’Osso
  • Suber S. Huang
Clinical Investigation
  • 104 Downloads

Abstract

Purpose

To report and discuss a focal oscillopsia in a small area of the visual field produced by, and after the removal of, an epiretinal membrane (ERM) in an individual with infantile nystagmus syndrome (INS) since birth with no associated afferent visual deficits.

Study Design

A retrospective case report.

Methods

A chart review, including clinical and electrophysiological data. A 74 y/o man with INS and an epiretinal membrane was studied. Detailed studies of the retina post-removal of an epiretinal membrane, with consequent changes in best-corrected visual acuity (BCVA), and subjective oscillopsia compared to INS waveforms. OCT measurements and eye-movement data from digital video and scleral search-coil systems were used.

Results

The monocular ERM produced an unexpected focal area of torsional/vertical oscillopsia (noted 1 year prior to the ERM surgery) in the portion of the visual field that corresponded with distortions from the ERM. The remainder of the visual field, corresponding with normal healthy retina was unaffected and stable in all planes. Post-removal, BCVA improved with redevelopment of the foveal pit and focal oscillopsia became less noticeable but remained due to the retinal distortion.

Conclusions

In patients with INS, complete oscillopsia suppression across the visual field requires undistorted vision. If a retinal area of visual distortion develops or results from retinal surgery, a symptomatic island of oscillopsia in one or more planes may result.

Keywords

Epiretinal membrane Nystagmus Oscillopsia Surgery 

Notes

Acknowledgements

This work was supported in part by the Office of Research and Development, Medical Research Service, Department of Veterans Affairs.

Conflicts of interest

L. F. Dell’Osso, None; S. S. Huang, None.

Financial support

None.

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Copyright information

© Japanese Ophthalmological Society 2017

Authors and Affiliations

  1. 1.Daroff-Dell’Osso Ocular Motility Laboratory, Louis Stokes Cleveland Department of Veterans Affairs Medical CenterCASE Medical SchoolClevelandUSA
  2. 2.Department of Neurology, Case Western Reserve UniversityUniversity Hospitals Case Medical CenterClevelandUSA
  3. 3.Retina Center of OhioSouth EuclidUSA

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