Hospital Universitario La Zarzuela Madrid


Paediatric Ophthalmology Unit (video-oculography)


Video-oculography is a new system that makes it possible to study all of the ophthalmologic and neurological diseases that affect ocular motility. In addition, it also allows diagnoses with no margin of error in cases an alteration of the patient's eye movements is suspected, such as in children with strabismus that are very difficult to diagnose with conventional medical methods.

The system analyses the patient's eye movements and measures (with excellent reliability) any deviations in their vision due to oculomotor deficiencies. This therefore s the Hess-Lancaster screen test, since it is able to detect deviations in eye movements with an extraordinary precision of 0.5 degrees.

The test, which is very comfortable for the patient, consists of analysing eye movement by using a computer-monitored image with a high resolution camera. It only lasts a few minutes and can be performed on patients age 4 and up.

The Hospital Universitario Sanitas La Zarzuela's Paediatric Ophthalmology Unit can both conduct* and interpret video-oculography tests.


The test is indicated especially in children to detect:

  • Strabismus
  • Reading disabilities
  • Other childhood illnesses


In adults it is indicated for:

  • Oculomotor palsy
  • Uncompensated phorias
  • Tropias
  • Accommodation/convergence insufficiencies.



Early detection of all of these illnesses, and indication of which type of medical or surgical treatment doctors should use for each patient.

Back to the list of units

Latest news and health adviceHospital Universitario La Zarzuela
The Thousand Grams of Dignity exhibition visits Sanitas' La Moraleja and La Zarzuela university hospitals.

Sanitas Hospitals centres welcome the exhibition to bring the population closer to the world of prematurity on World Prematurity Day.The exhibition will be available in the ...

More information
Sanitas' La Moraleja and La Zarzuela university hospitals obtain the Joint Commission International recognition

This recognition is considered the gold standard in global care within the hospital sphere.The Sanitas hospitals are the only two in Madrid to hold this distinction, including ...

More information