Visual snow syndrome (VSS) is a relatively new diagnosis in medicine. VSS represents a constellation of visual and non-visual problems, with the hallmark symptom presence of pixilated, scintillating, visual noise, superimposed on the visual science.
Palinopsia or sliding of visual images
Nyctalopia or inability to see in dim light or at night
Chromatic tints or filters often help relieve VSS symptoms
A formal evaluation using different chromatic filters or tints are presented to determine which would most reduce the symptoms.
The tints do not eliminate or cure the visual snow.<p>
Eye movement therapy to reduce the smearing of images
Vision therapy for additional diagnoses determined during the evaluation.
Exam / Visit Expectations
A neuro-optometric rehabilitation evaluation assessing oculomotor (eye-tracking), accommodation (eye-focusing), and binocular (eye-teaming) function will be performed. Visual snow symptoms will be reviewed.
A formal evaluation using different chromatic filters/tints/colorimeter will be performed to determine if a filter is indicated.
Note: If the symptoms are due to optic nerve damage, prognosis is poor.