Fluorescein Filter

High performance clip-on Fluorescent Filter ready to take your clinic to the next level

Now with new scratch resistant coating!

Reveal hidden details

Aston Vision Sciences’ colour enhanced fluorescent filter allows for high fidelity viewing of the anterior surface. Retro- fit design enables clip on to many common slit lamp models allowing for a fast & simple upgrade of existing equipment.

Common uses of the Fluorescein Filter include the viewing of:

Corneal abrasions / Trauma
Dry Eye evaluation
Epithelium damage
Contact lens fitting/ irritation
Tear break up / Partial blinking
Foreign bodies/ Debris

Fluorescent viewing of a human eye showing general region tear film breakup (darker regions) under fluorescein filter observation

Injury (scratch) on lower cornea visible under fluorescent illumination

Fluorescent eye illuminated with fluorescein dye under blue light, highlighting tear film disruption due to partial blinking.

Close-up of an eye under fluorescent dye illumination, showing tear film stability used in dry eye disease diagnosis.

Fluorescent human eye showing illuminated green colours and darker regions of tear film instability

Human eye glowing a fluorescent green colour

Patients' eye glow fluorescent green under revealing the state of the human tear film

Fluorescein observation with a contact lens present leading to unusual lighting patterns

Horizontal fluorescent bands show how low the upper eye lid extends during blinking

Do more

Allow your clinic to perform at its best with the new filter without having to invest in expensive new slit lamps

See More

High performance viewing to spot finer details with greater confidence and better results

With Comfort

Compatible with many slit lamps for handsfree viewing giving you the freedom to work fast

And Lower Cost

Have the filter in your tool kit without worry about excessive costs or changes to establised practices

Fluorescein Filter Features

Compatible Slit Lamps

The AVS clip on fluorescent filter can be held by hand on most slit lamps or clipped on for hands free use on the following slit lamp models:

CSO SL990-D	Haag Streit BP900	Haag Streit BQ900	Keeler Symphony 40H
Keeler Symphony 3020Z	Keeler SL-40	Mediworks S360	Miltron SL-40Z
Nikon NS-1V	Opticlar SL260	SK-MED LS4	Sun Kingdom LS 5
Takagi 4ZL	Topcon SL-2G	Topcon SL-D301	Topcon SL-D4 & SL-D7

Testimonials

I purchased it as a temporary solution so a broken in-built wratten filter in my slit lamp. I used it for about a month before my slit lamp got repaired. I have no need for it again now. When using it I thought it was excellent. Image quality was superb and it did the job I needed very well.

Anthony Josephson

Optometrist

“The yellow filter is an amazing asset to improve the fluorescein visualisation of the cornea epithelial surface for subtle changes that may be easily missed otherwise. It is also a great teaching tool for junior ophthalmology trainees, optometrists and nurse practitioners who are starting to learn how to look for these changes as it clearly highlight them even with minimal fluorescein staining”

Dr Soon Ch’ng

Vitroretinal Surgeon

Essentially - Great colour profile. Staining really ‘pops’ on the eye and pooling positively blazes! Compact design makes it easy to hold with one hand and it’s rigid so doesn’t get weird creases on it from being bent or alter the optics down the slit lamp Neat clip is brilliant if it fits your slit lamp - can put it on one handed very easily

Ian Cameron

Contact Lens Specialist

The image quality is excellent and it clips on to my microscope easily. The image intensity is wonderful; much better than the film filters I have used in the past.

Michael

Blackstone Opticians

It has enormously improved viewing for contact lens work and for dry eye and corneal conditions.... I won't go on now but it is probably a game changer. Some of the very expensive slit lamps have inbuilt 'wratten' filters which are good, others don't. Some have poor ones which just don't do a good enough job.