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Fluorescein Filter from Aston Vision Sciences

£59.94 Inc. VAT £49.95 Excl. VAT

Product Description

High performance filter ready to take your clinic to the next level

Introducing Aston Vision Sciences’ colour enhanced Fluorescein Filter, the perfect choice for high-resolution and effortless observation of the anterior surface and a wide range of anterior eye defects. The filter provides superior viewing performance and is especially good at seeing tear film break up used for dry eye disease assessment, partial blinks and foreign bodies in the eye.

The Filters unique shape makes it comfortable enough to hold but has also been designed to clip on to many common slit lamps, allowing for a fast and simple upgrade of existing equipment.

Common uses of the Fluorescein Filter  include the viewing of:

  • Corneal abrasions
  • Trauma
  • Foreign bodies/ debris
  • Tear breakup
  • Partial blinking
  • Contact lens fitting/ irritation

AVS’s unique yellow colour formula is tuned to work close to the fluorescein emission spectrum, clinicians get high clarity and contrast compared to others on the market- all at a much lower price. Performance is very strong in lower blue-light levels which is more pleasurable for patients too.

** Shipping charge of £2 via Royal Mail. For orders of 5+ filters, these will ship via DPD **

What makes the Fluorescein Filter from Aston Vision Sciences so good?

  1. See more Details
    Tuned colour formula reveals fine details, even in difficult lighting conditions
  2. Perform more Tests
    Convenient hands free operation with many compatible slit lamps
  3. Multi Use
    In situations without a compatible slit lamp filter can be held in position by hand
  4. Anti-scratch Protection
    Raised bumpers along with large lens area give both protection and clear unobstructed viewing
  5. Low Cost, High Performance
    High performance, simplicity and convenience, all in a low cost solution

Tear film break up using the FilterTear 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.


The AVS fluorescein filter is compatible with many leading slit lamps, including:

• Takagi 4ZL

• Nikon NS-1V

• Keeler Symphony 40H

• Keeler Symphony 3020Z

• Keeler SL-40

• Miltron SL-40Z

• Haag Streit BP900

• CSO SL990-D

• Topcon SL-D7


Feedback from AIO Chairman Dr Christian French:

I have been using the AVS fluorescein filter for some time and I find it an invaluable addition to my standard range of instruments. I use it in almost every eye casualty clinic I work in my hospital role, in addition to assessing and monitoring our corneal patients. In private practice, it is extremely useful in both contact lens assessments and dry eye consultations.

The free filters that we used to use are OK, but staining is so much easier to assess with the AVS filter; in addition to having both hands free to operate the slit lamp. Worth every penny and every clinician using fluorescein on their patients should have one to hand.

Using AVS’s Fluorescein Filter, tear film break-up is visible