ASF Hess Chart / Hess Screen

The ASF Hess Chart / Hess Screen is a specialized diagnostic instrument engineered for comprehensive evaluation of ocular motility disorders in hospital and clinic settings. This vision chart is crucial for assessing conditions such as incomitant strabismus, where the deviation of the eyes varies depending on the direction of gaze. Operating on the principle of foveal projection and utilizing color dissociation with red/green filters, the Hess Chart allows for precise measurement and mapping of each eye's deviation.

Constructed from Aluminum, the ASF Hess Chart / Hess Screen features a digital LED back-lit display, ensuring clear visibility during examinations. Its rectangular design measures 81*81*2.5 cm and has an item weight of 7 kg, making it a robust piece of clinical equipment. The device operates with power requirements of 220V, 60W.

The Hess Chart is invaluable for diagnosing under- and overactions of extraocular muscles, identifying palsies, and detecting congenital or acquired conditions that lead to strabismus. It provides a permanent and accurate record of ocular motility status, enabling clinicians to document and monitor changes in deviations over time.

Key Features : 

Evaluates ocular motility disorders, including incomitant strabismus and cranial nerve palsies
Aids in the diagnosis of under- and overactions of extraocular muscles
Constructed from Aluminum with digital LED back-lighting
CE Certified and manufactured under ISO 9001:2015 standards