Caterna | Updates

By Michael Scherrer

Caterna Answers the Most Frequently Asked Questions - Part 2


Dear Companists,

today we announce ourselves as promised with the second part of the FAQ. We hope to have covered most of the outstanding questions.


What is the difference between the Caterna Vision Training and the Caterna App?

The young patients train with the Caterna Vision Training via the browser on their computer. The therapeutic patterns are adjusted according to the doctor's prescription; the semi-transparent video games in the foreground attract the child's attention. Since Caterna therapy is an addition to occlusion therapy (masking therapy), it makes sense to note down the times during which the patient wore his eye patch. This training protocol can be tracked using the Caterna app. The patient's parents simply enter the occlusion times in the app (of course this can also be done on a computer). Our server then creates a treatment diary with the therapy times and the times the eye was covered each day. This protocol can be viewed by both parents and ophthalmologists. Of course, this also has a positive effect on motivation (and adherence to therapy).

Meeting minutes of Caterna


Does the Caterna Vision Training include different patterns?

We adjust the therapeutic pattern according to the prescription of the ophthalmologist. There are two basic types: a striped pattern and concentric circles. The stripe pattern is used in cases where the visual acuity of the two eyes is very different, the basic condition called anisometropia. If the amblyopia was caused by strabismus (crossed eyes), we apply the circle patterns. The pattern is also adjusted to the child's eyesight (visual acuity).


What do physicians say about the Caterna therapy?

"Since 2012, we have treated about 150 patients using the Caterna Vision Training. On average, we saw an increase in visual acuity of 30 to 50% in children between the ages of four and twelve, in very few exceptions it was only 10%, e.g. after cataract surgery. Caterna can also be used for nystagmus or eccentric fixation, although the visual acuity increase is not as high then. The Caterna Vision Training has also improved visual acuity in adolescents and adults. We would not recommend using Caterna in cases of epilepsy or if the visual acuity is less than 0.1.

We are very happy that we can prescribe Caterna Vision Training as a supplement to occlusion. In most cases, the children experienced a good increase in visual acuity after six weeks and were all the more motivated to continue with the visual exercises."

Orthoptist from an ophthalmological practice in northern Germany. If you have any questions, we can gladly connect you.


"I have been treating visually impaired children with the Caterna Vision Training for about 2 years. Initial skepticism evaporated very quickly, as the results achieved significantly exceeded expectations. This program is a very innovative therapy that corresponds to the times. Compared to the usual application of only occlusion therapy (covering up the better eye so that the worse eye learns to see), the combination of occlusion with Caterna is significantly more effective. The use of Caterna significantly improved the vision of 80-90% of children within 3-4 months. The Caterna Vision Training can be conducted from the ages of 3 to 11. This makes it possible to successfully treat even older children who were diagnosed late, who did not achieve the desired success with the occlusion, or who are no longer suitable for occlusion after the age of 6. Occlusion therapy alone often requires a very long therapy time and is very difficult after the age of 6.

Caterna's modern therapy form is very easy to use; the children enjoy playing the games offered in the program, while the actual eye-training program runs in the background. Since the program is carried out at home, time management is flexible and can be integrated into the daily routine of the family. This eliminates fixed schedules and routes. My experience shows that it is important to complete at least 90 sessions over a period of about 4 months in order to achieve a good result."

Dr. med. Ingrid Wagner, Specialist in Ophthalmology, Ophthalmological practices in Oranienburg and Templin


Should you have any further questions about the treatment or Caterna itself, please do not hesitate to contact us. You can do this here in the comments area or via

With kind regards

Michael Scherrer


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