The Effect of Physical Exercise on the Retina and Choroid

Abstract

There is only limited information available on the effects of physical exercise on the posterior pole. Retinal circulation is autoregulated similarly to the brain vasculature in order to provide constant flow and thus constant nutrition of the inner retinal structures while the choroid is mostly controlled by the sympathetic nervous system. The available data show that physical exercise may indeed have a positive effect on the retina and visual function. The assessment of retinal structure could serve as a marker in sports medicine, whereas physical activity could exert a positive protective effect against diseases such as diabetic retinopathy or age-related macular degeneration. According to our theory, similar to the term “trained heart” used in cardiology and sports medicine, the term “trained eye” could also be coined. This latter term would help to further emphasize the beneficial effects of physical exercise that works protectively not only for the cardiovascular but for the visual system as well, and thus could further help in the fight against avoidable blindness worldwide.

Zusammenfassung

Es ist nur relativ wenig Information über die Wirkung der körperlichen Aktivität auf den hinteren Augenabschnitt vorhanden. Die Netzhautzirkulation wurde ähnlich zum Gehirn durch Autoregulation geregelt, welche die Ernährung der inneren Netzhautschichten ermöglicht, wobei die Aderhaut primär durch die sympathetische Innervation gesteuert wurde. Die zur Verfügung stehenden Informationen zeigen, dass körperliche Aktivität eine positive Auswirkung auf die Netzhaut und Sehleistung haben kann. Die strukturellen Angaben der Netzhaut könnten als Marker in der Sportmedizin dienen und körperliche Aktivität wirkt vermutlich sehr stark protektiv bei Krankheiten wie diabetischer Retinopathie und altersbedingter Makuladegeneration. Nach unserer Theorie, ähnlich zum „trainierten Herz“ in der Sportmedizin und Kardiologie, könnte man auch das „trainierte Auge“ als Definition einführen, welche auf die positive, protektive Wirkung der körperlichen Aktivität bei verschiedenen Krankheiten hinweist. Dies könnte den Kampf gegen die vermeidbare Erblindung weiter unterstützen.

Key words

choroid - retina - optical coherence tomography - physical exercise

Schlüsselwörter

Chorioidea - Retina - optische Kohärenztomografie - körperliche Aktivität

Publication History

Received: 26 September 2019

Accepted: 21 December 2019

Article published online:
04 March 2020

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