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Documenta Ophthalmologica

, Volume 139, Issue 1, pp 75–81 | Cite as

A case of X-linked retinoschisis with atypical fundus appearance

  • F. NasserEmail author
  • S. Kohl
  • L. Kuehlewein
  • B. Wissinger
  • C. D. Obermaier
  • A. Kurtenbach
  • E. Zrenner
Clinical Case Report
  • 94 Downloads

Abstract

Purpose

Mutations in the RS1 gene are known to cause retinoschisis, an X-linked hereditary retinal degeneration. Here, we present a case of atypical retinoschisis with clinical findings of retinoschisis and retinitis pigmentosa.

Methods

This report is an observational case report. The detailed ophthalmological examinations included visual field determination, multimodal imaging and electrophysiological recordings. Targeted next-generation sequencing of a retinal disease gene panel was performed.

Results

The 55-year-old male, highly hyperopic patient, presented with a best-corrected Snellen visual acuity of 20/100 in the right eye and 20/400 in the left eye. In the kinetic visual field, there was a superior scotoma, as well as a ring scotoma in the inferior hemisphere in the right eye and a concentric visual field constriction to 10° in the left eye. Funduscopy revealed marked pigmentary changes (i.e. bone spicules) in the mid-periphery bilaterally and symmetrically, as well as two small intra-retinal haemorrhages in the left eye. Full-field electroretinography recordings showed extinguished rod and cone responses. Diagnostic–genetic testing revealed a hemizygous missense mutation in the RS1 gene (c.305G > A; p.Arg102Gln) was identified.

Conclusion

We present a case of atypical retinoschisis with clinical findings of retinitis pigmentosa.

Keywords

Retinoschisis Electroretinography RS1 

Notes

Acknowledgements

We would like to thank Prof. Paul Sieving for his helpful comments on this case.

Funding

The study was supported by Grants from the German Research Council (DFG Excellence Center EXC307) to EZ, and from the Tistou and Charlotte Kerstan Foundation to FN and AK.

Compliance with ethical standards

Conflict of interest

All authors certify that they have no affiliations with or involvement in any organization or entity with any financial interest (such as honoraria; educational grants; participation in speakers’ bureaus; membership, employment, consultancies, stock ownership, or other equity interest; and expert testimony or patent-licensing arrangements), or non-financial interest (such as personal or professional relationships, affiliations, knowledge or beliefs) in the subject matter or materials discussed in this manuscript.

Statements of human rights

All procedures performed in studies involving human participants were in accordance with the ethical standards of the institutional and/or national research committee and with the 1964 Declaration of Helsinki and its later amendments or comparable ethical standards.

Statement on the welfare of animals

This article does not contain any studies with animals performed by any of the authors.

Informed consent

Informed consent was obtained from the participant included in the study.

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Copyright information

© Springer-Verlag GmbH Germany, part of Springer Nature 2019

Authors and Affiliations

  1. 1.Institute for Ophthalmic Research, Centre for OphthalmologyEberhard Karls UniversityTübingenGermany
  2. 2.CeGaT GmbHTuebingenGermany
  3. 3.Werner Reichardt Center for Integrative NeuroscienceEberhard Karls UniversityTuebingenGermany

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