Has anybody heard of Temporary Luminous Phenomenon?

It is a side effect of my medication but my opthalmologist has never heard of it so I don't know what to look out forHas anybody heard of Temporary Luminous Phenomenon?
Eye disorders:
Very common (>1/10)
- Luminous phenomena (phosphenes): reported by 14.5% of patients, described as a transient enhanced brightness in a limited area of the visual field. They are usually triggered by sudden variations in light intensity. The onset of phosphenes is generally within the first two months of treatment after which they may occur repeatedly. Phosphenes were generally reported to be of mild to moderate intensity. All phosphenes resolved during or after treatment, of which a majority (77.5%) resolved during treatment. Fewer than 1% of patients changed their daily routine or discontinued the treatment in relation with phosphenes.
14.5% of all patients taking ivabradine experience luminous phenomena (by patients described as sensations of enhanced brightness in a fully maintained visual field).