Eye disease · Overview

Flickering vision

Flickering vision

Dr. med. Ken Selde

FMH specialist doctor for ophthalmology and eye surgery

Flickering vision is a common patient complaint which we see in our practice on a daily basis. Flickering vision can be harmless but may often conceal diseases which threaten the sight, which is why we recommend consulting an ophthalmologist.


Flickering vision covers various unclear vision problems whose sufferers find it difficult to explain what they see and what they do not. Flickering vision, visual snow, loss of sight at the edge or in the center of the field of vision with or without a zigzag border of flickers or flashes of light, a feeling of pressure, areas with floating bodies: this wide range of symptoms makes it difficult for non-specialists to ascertain whether there is anything to worry about.



If you experience flickering vision, the best thing to do is to consult an ophthalmologist immediately, who will quickly determine the cause. You should anticipate not being able to drive for several hours following your appointment with the ophthalmologist.


If you are taking any medication, you should inform the ophthalmologist as it may have side effects which have been underestimated or simply forgotten. It may also be useful to measure your blood pressure during an attack of flickering vision; please inform the ophthalmologist unprompted of the results and any chronic illnesses from which you suffer.


A thorough eye examination, generally lasting for more than just a few minutes, enables the ophthalmologist to rule out causes such as common ocular migraines, circulation disorders, or rarer sight-threatening optic nerve diseases, inflammation of the iris, retinal detachment, or glaucoma. This list does not claim to be exhaustive, but is simply designed to give you an idea of the wide range of causes.


Do you have further questions or would you like a consultation with our specialists? Contact us now! We are your competent ophthalmologist in Zurich and look forward to your visit.