AOS Anterior - Automated Ocular Analysis

AOS Anterior gives clinicians an important tool in assessing ocular conditions with repeatable, accurate results that eliminate inter-clinician variability. AOS’s automated intelligence enables the clinician to analysis any digital image (including smartphone) to a higher level of accuracy than today’s gold standard, providing a consistent, objective grading compared to current grading systems (CCLRU / Efron) which are affected by the clinician’s subjectivity and experience.

AOS Anterior is device agnostic allowing the import and export of images/reports from any medical device or database. The User interface (UI) has general features for use on any image, with 3 specialist modes for use on various types of anterior segment imaging.

AOS Anterior is validated to the gold standard and can be used everywhere from the practice setting to clinical research, it is also being used as an educational tool both for patients and students.

AOS Anterior

AOS Anterior v2 Brochure


Analyse ocular digital images in 3 modes; Bulbar Redness, Lid (redness and dry eye), Fluorescein. Grade 0-4 Efron & CCLRU, Dry Eye 0-4 & % loss, count punctate, redness map and fluorescein build up (2D & 3D).


Import/Export any format image from a database or use the in-built crop function allowing the direct import of any image into software. Open the image of interest > select the crop function in AOS > Crop image of interest.

In-built reporting function

Our customisable in-built pdf generator allows the user to create “new`` or ``add to existing” patient reports capturing the results from your analysis with added fields for patient details and clinical comments.


Validated against the industry gold standard (CCLRU / Efron) achieving higher repeatability, lower variability between clinicians and a extremely high level of accuracy in comparison.


Additional enhancement features include “Vessel enhancement”, “Red free”, “Digital Wratten filter”, and our all new “Digital ruler”. Adding more powerful tools to assist in making an objective diagnosis.


Microsoft Windows 7 or above (.net 4.7 framework minimum)
Internet required for install and updates.
Minimum screen height resolution of at least 768
1yr technical support and updates included

Features & Modes

AOS Anterior has 3 main modes and multiple additional features to aid the clinician. Designed to give instanteous objective results, quantify or simply enhance, AOS Anterior is a powerful tool aiding diagnosis.

Below highlights the different modes and features available in the current version which include:

  • Bulbar redness grading 0-4
  • Lid Redness grading 0-4
  • Fluorescein Punctate / Mapping
  • Vessel Extraction
  • Digital Wratten filter
  • Digital ruler
  • Crop
  • PDF generator

Click images to enlarge

Bulbar Redness - 0-4 grading

The user can easily draw an area of interest and automatically display the Redness Grading and number of vessels on the control panel next to the analysed image. Redness is shown on the 0 – 4 scale, the vessels are shown as a percentage figure.

Bulbar Redness - Redness Map

Redness map displays a visually stunning colour map and 0-4 redness grade in the UI, for pin-point grading move the cursor over the selected area. Cold -Blue (low) Hot -Red (high).This feature gives an immediate overview. can be used as an educational tool.

NEW Bulbar Redness - Comparison

The New Comparison feature allows the user to select two identically sized separate areas on the same image, each area automatically sizing to match any adjustments. Grading is displayed within the control panel. Now with AOS’s redness map has to give better visualisation of the selected areas.

Bulbar Redness - Drawing tool

This feature simply allows users to draw over the image, this can be useful for follow-ups and patient education. A clinician can highlight the edge of cornea to illustrates to the patient how neo-vascularization is taking place.

Bulbar Redness - Grid Redness

After drawing the area to grade, the user can click on the ‘Grid Redness’ button which displays a grid over the selected area. The grid allows the user to measure the level of redness on specific points over the bulbar area. Again, the results are shown within the Control Panel.

Validated to the gold standard

NEW Feature - Vessel Enhancement

Vessel enhancement, a new single click feature to AOS Anterior, allows the user to visually enhance an entire digital image automatically by removing the digital noise from the original. This feature instantly enhances the vascular structure on both anterior and posterior imaging.

Available to download from our online store

Lid Redness - 0-4 grading

The Lid Redness tool detects Palpebral Conjunctival Redness, again using the 0 – 4 scale. It displays results in the industry standard 5 zone grid (central, upper, lower, left, right). Lid Redness mode is activated in the Control Panel, shown in orange.

Fluorescein - Area

The Area feature allows the user to quickly draw an area over the image and display the results (e.g. number of punctuates) in the control panel.

Fluorescein - Corneal Grid

The Corneal Grid feature uses the industry recognised 5 zones grid which clinicians are accustomed to, and the results (no. of punctuates) displayed for each region on the control panel. The position, size and shape of the grid can be altered to suit by adjusting the handles on the edge of the grid.

NEW Feature - Digital Ruler

The new digital ruler features allows the user, in any mode, to measure areas of interest accurately with a predetermined baseline measurement. Once the baseline is set and the unit measurement selected multiple points can be assessed including mm2.

NEW Fluorescein - 2D Mapping

New in fluorescein mode, 2D mapping similar to AOS redness map allows the user to select an area of interest to assess fluorescein build up or corneal folds over the cornea. From blue to red indicating low to high fluorescein accumulation a great tool for contact lens fitting.

NEW Fluorescein - 3D Mapping

New in fluorescein mode, 3D mapping transforms 2D images into a visually striking 3D image, moveable on its axis giving a clearer indication of the amount of accumulation. Ideal for patient education offering a easy to understand visualisation of the adjustments required to correct fitting lens.

NEW Feature - Digital Wratten Filter

AOS’s new digital Wratten filter gives the user a single click option to instantaneously enhance the entire image. Additionally our wratten filter removes all digital noise giving clearer images to aid in diagnosis and can even enhance images taken with a standard Wratten filter.

NEW Feature - Image crop

Importing an image into AOS couldn’t be easier with the new image crop function. Simply open the image you wish to analysis, select the image crop icon on the control panel automatically returning you to the image you just opened, wait for the grey filter to cover the image then crop the area of interest, instantaneously importing it into the software.

Feature - PDF generator

AOS’s customisable pdf generator allows the user to create new or existing patient reports, transfering the analysed image and results into the report automatically, with selected fields for patient data and comments. Add multiple analysed images and results to one single report. Brand reports with your logo.