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The Magic of Fluorescein

Enhanced AVS Colour Formula

Aston Vision Sciences has developed a trade secret colour formula that provides high definition fluorescein viewing 

Excel graph showing the excitation and emission spectrum of fluorescein dye

 Adapted from source: McLaren JW, Brubaker RF. Light sources for fluorescein fluorophotometry. Appl Opt 1983;22:2897–2905

The Science

We studied the light profile of the fluorescein as it glows on the eye and developed a high performance filter that is able to block out the unwanted light, thereby making viewing clearer and finer details easier to spot. 

Tear film break up in action

Fast changes in tear film composition give rise to darker regions indicating the possibility of dry eye disease which become apparent with the fluorescein filter.

Results

By merging innovation with ophthalmic needs, AVS developed two cutting edge products designed with clinical and patient needs in mind: the clip on Fluorescein Filter, and the portable Lumio Anterior Eye Examiner. 

Filter Performance Comparion

Image of the anterior segment of the eye under green illumination using a regular, non optimised Fluorescein Filter
Regular Fluorescein Filter
Image of the anterior segment of the eye using the tuned fluorescein filter from Aston Vision Sciences
Colour Optimised AVS Filter

Interested In Industrial Use?

Our colour formula can be used in other Fluorescein related applications such as leak detection, flow analysis, forensic and environmental.

 

Contact us if you want to explore more.

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