Sehtraining Setting
Setting Sehtraining im Parcside

Ablauf des Sehtrainings mittels c-DIGITAL VISION TRAINER (R)

Das Sehtraining mittels c-DIGITAL VISION TRAINER (R) geht über 6 Wochen. Es wird durchgeführt in den Praxisräumen der Augenärztlichen Privatpraxis im Parcside Medical Center, Nürnberg. Es besteht aus 2 Sehtrainingseinheiten pro Woche. Eine Sehtrainingseinheit beträgt ca. 20min. Das Programm besteht aus einer Eingangsmessung, 12 Sehtrainingeinheiten, einer Abschlussmessung und einer Erfolgskontrollmessung nach 6 Monaten ohne Training.

  1.  Eingangsuntersuchung: Untersuchung der Sehschärfe, des Stereosehvermögens (Stereosehschärfe und korrespondierende Erkennungszeit)
  2. Sehtraining: 6 Wochen (2x/Woche 20min), Termine frei vereinbar.
  3. Abschlussuntersuchung: Nach 6 Wochen Untersuchung der Sehschärfe, des Stereosehvermögens (Stereosehschärfe und korrespondierende Erkennungszeit), Fragebogen
  4. Erfolgskontrolle nach 6 Monaten ohne Training: Untersuchung der Sehschärfe, des Stereosehvermögens (Stereosehschärfe und korrespondierende Erkennungszeit), Fragebogen

Wissenschaftlicher Hintergrund:

Repetetives Lösen von visuellen Aufgaben (Sehtraining) führt zu verbesserten Seheigenschaften auch über die Trainingzeit hinaus. Für diesen Fortschritt verantwortlich ist wahrscheinlich das  visuelle perzeptive Lernen, ein neuronaler Mechanismus, der auf der Plastizität des visuellen Cortex (Polat, 2009b, Gilbert et al., 2009, Sterkin et al., 2009) beruht. So kann durch wiederholte visuelle Reize Sensitivität, Reaktions- und Verarbeitungsgeschwindigkeit (Polat et al., 2012, Gilbert et al., 2001, Polat, 2009b, Gilbert et al., 2009, Hamamé et al., 2011) gesteigert werden. Es wird außerdem diskutiert, dass die Verbesserung visueller Funktionen nicht streng aufgabenspezifisch ist (Polat 2009, Seitz und Watanabe, 2009) und so auch im täglichen Leben, zur Behandlung visuell beeinträchtigter Personen (Andersen et al, 2010, Bower und Andersen, 2012, Polat et al., 2004) oder im professionellen Sport genutzt werden kann (Regan, 2012, Clark et al., 2012).

Unsere Arbeitsgruppe (Repetitive tests of visual function improved visual acuity in young subjects. Otto J, Michelson G., Br J Ophthalmol. 2014 Mar;98(3):383-6. doi: 10.1136/bjophthalmol-2013-304262. Epub 2014 Jan 3.)  konnte bereits nachweisen, dass die Sehschärfe und Kontrastsensitivität durch Sehtraining sich verbessert.

Bei N=10 jungen Frauen (Fechterinnen des Olypiastützpunktes Tauber Bischofsheim) im Alter von 19-29 Jahren wurde über 5 Wochen ein Sehtraining (c-DIGITAL VISION TRAINER (R)) durchgeführt. Die Teilnehmerinnen absolvierten zwei Sitzungen zu je 30 Minuten pro Woche, in denen die zentrale Sehschärfe, Kontrastsensitivität und Vernier- bzw. Hypersehschärfe trainiert wurde.  Nach 10 Trainings-Sitzungen fanden wir signifikante Verbesserungen in Sehschärfe, Kontrastsensitivität und Vernier-Sehschärfe. Im Vergleich zur initialen Sitzung verbesserte sich die Sehschärfe im Mittel um 32%, die Kontrastsensitivität steigerte sich um 40% und die Vernier-Sehschärfe um 47%.



In der Zeitschrift

Restorative Neurology and Neuroscience

werden erste Ergebnisse des Sehtrainings mittels c-DIGITAL VISION TRAINER zum besseren Stereosehen publiziert.

“Repetitive Dynamic Stereo Test Improved Processing Time in Young Athletes,” by Micha Daniel Schoemann, Matthias Lochmann, Jan Paulus, and Georg Michelson, MD. Published online in advance of Restorative Neurology and Neuroscience, Volume 35, Issue 4, (August 2017). DOI @@@, by IOS Press.


In der Zusammenfassung wird geschrieben:

Training Can Improve Athletes’ Stereo Vision

Significant Effects Can Persist for Some Time, Reports Restorative Neurology and Neuroscience

Amsterdam, NL, June 30, 2017 – Stereo vision allows individuals to perceive depth differences in their surroundings. Important to pedestrians and drivers, for example, depth perception plays a key role in many sporting activities. If the ability to accurately determine the distance and speed of a fast-moving object can be improved, athletes have the potential to improve their performance. In a new study published in Restorative Neurology and Neuroscience, researchers found that by training athletes using repetitive stereoscopic stimuli, their reaction speed to those stimuli could be significantly improved.

Using a commercial vision training apparatus (c-Digital Vision Trainer®), 15 male soccer athletes were trained over 12 sessions of 15 minutes each over a period of six weeks. They were presented images on a 3D-TV simulating moving soccer balls. Each ball appeared to be both moving towards them and rotating, with one ball appearing to be closer to the observer.

Subjects were required to pick out which ball is “in front” and indicate this as quickly as possible by pointing to that ball. The time to see the depth difference plus the time for the motor reaction was defined as “response time”. The total “response time” minus the time for the motor reaction was defined as “processing time” in the tests. By testing different grades of complexity of the stimuli the time for the motor reaction and the “processing time” could be differentiated.


Dynamic Stereo Stimulus
Illustration in 3D of the dynamic stereoscopic stimulus: the target objects are constantly moving towards the observer.

“Elite athletes often operate at suprathreshold levels, which cannot be determined by classical stereo vision tests,” explained principal investigator Georg Michelson, MD, Department of Ophthalmology, of Friedrich-Alexander-University Erlangen-Nürnberg (FAU), Erlangen, Germany. “Processing time, as the reaction time in which the absence or presence of depth was identified correctly, is of better predictive value for perceiving depth than the stereo threshold only. Our aim was to determine whether repetitive dynamic stereo testing with a limited time frame can induce a significant long-lasting improvement of stereo processing time in a group of young athletes with highly developed stereo acuity.

The apparent distance between the nearest ball and the three other balls can be adjusted in the apparatus. At large distances, each subject would likely be able to identify the nearest ball quickly, but at small distances, only those with excellent dynamic stereo vision would react quickly.

By testing athletes with highly developed stereo acuity, researchers determined that repetitive training decreased their processing time, and that this ability was persistent for six months after the training ended.

After six training sessions, the athletes’ processing time at 11 arcseconds (11/3600 degrees of an arc) decreased significantly from 804.4 milliseconds to 403.7 milliseconds. When most of the subjects were tested again after six months, their processing times were the same as in their last training session.

Caption: Mean stereo processing time at 11 arcsecs disparity difference of all 15 subjects by number of trials and six months after the last training as measured with the c-DIGITAL VISION TRAINER® test.

While this study has implications for athletic performance, non-athletes with impaired stereo vision can also benefit. Amblyopia, or “lazy-eye” syndrome, can result in weak or missing depth perception, and therapies that might improve this condition would be welcome.

According to Dr. Michelson, “Research of the past few years is increasingly changing the focus from pure monocular treatment to combination therapy with the fixing eye kept open and, finally, binocular therapy based on perceptual training. As recent studies additionally show repetitive identification was already able to improve visual acuity, we think, now it is the right time to investigate the same for stereo processing time.”


Mean Stereo Processing before and after trainng
Mean stereo processing time at 11 arcsecs disparity difference of all 15 subjects by number of trials and six months after the last training as measured with the c-DIGITAL VISION TRAINER® test.