Ophthalmologic manifestations of adult patients with cystic fibrosis

Author:

Giannakouras Panagiotis1ORCID,Kanakis Menelaos2,Diamantea Filia3,Tzetis Maria4,Koutsandrea Chrysanthi1,Papaconstantinou Dimitrios1,Georgalas Ilias1

Affiliation:

1. First Department of Ophthalmology, G. Gennimatas General Hospital, National and Kapodistrian University of Athens, Athens, Greece

2. Department of Ophthalmology, General Hospital of Patras, University of Patras, Rio, Greece

3. Third Respiratory Medicine Department, Sismanogleio General Hospital, Marousi, Greece

4. Department of Medical Genetics, Medical School, National and Kapodistrian University of Athens, Athens, Greece

Abstract

Introduction: Cystic fibrosis (CF) is the most common life-shortening recessive genetic disease in Caucasians, affecting primarily the lungs. The objective of our study was to investigate potential ophthalmologic involvement in adult patients with CF. Methods: Fifty adult patients with cystic fibrosis and 60 age- and sex-matched controls underwent complete ophthalmologic examination including tear-film Break-Up Time (BUT), Macular Thickness, and peripapillary Retinal Nerve Fiber Layer (pRNFL) thickness measurements using Spectral Domain-OCT. Results: CF patients had significantly lower nasal-inferior pRNFL thickness (median 82 IQR 67–102 vs 92.5 IQR 82–107, p = 0.005) and lower percentage of normal tear Break-Up Time (56.0% vs 96.7%, p = 0.001) than healthy controls. All CF patients with BUT <10 s were diagnosed with blepharitis at the time of our assessement. The subgroup of patients homozygous for the most common CF mutation, F508del, had lower nasal-inferior pRNFL thickness ( p = 0.014) and lower percentage of normal tear Break-Up Time ( p = 0.001) compared to the control group. Additional findings, present in the CF group only, were punctuate retinal hemorrhages (four patients), vessel tortuosity (four patients), snail-track degeneration, and retinal tufts (two patients without refractive error). There were no significant differences in visual acuity, refractive errors, gonioscopic findings, or intraocular pressure between the groups. Conclusions: Our study is, to the best of our knowledge, the largest ophthalmologic study of patients with cystic fibrosis. We found that CF patients had significantly decreased inferior-quadrant peripapillary retinal nerve fiber layer thickness and decreased tear-film break-up time compared to controls. We highlight the importance of careful regular ophthalmologic assessment and follow-up of these patients.

Publisher

SAGE Publications

Subject

Ophthalmology,General Medicine

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