Everything AcuityMaster does.
✓ Mac compatible ✓ Windows compatible ✓ iPad / browser-based
Developed in a multispecialty ophthalmology and optometry setting — AcuityMaster delivers the full test suite your patients need, in one affordable application. New to the category? Start with what visual acuity software is and how to choose it.
Clinical standards: Designed to ANSI Z80.21 (luminance) · ISO 8596 (optotype luminance) · Optotypes calculated from your patient-to-screen distance
In one paragraph: AcuityMaster provides a full clinical chart set from one browser window: Snellen in US, metric and decimal notation; ETDRS/LogMAR; color vision screening plates; reduced-contrast acuity at four levels; Worth 4-Dot; fixation disparity; astigmatic dial; red-green duochrome; and pediatric optotypes including HOTV, Tumbling E and Landolt C.
Units of Measure
Switch between all popular visual acuity formats instantly — no setup required between patients.
- US Snellen — 20/400 … 20/20
- Metric — 6/60 … 6/6
- LogMAR — 1.0 through 0.0 (ETDRS standard)
- Decimal — 0.1 through 1.0
Calibration
Configure AcuityMaster once for your exam lane — settings persist between sessions.
- Unit of measure selection (US, Metric, LogMAR, Decimal)
- Patient-to-screen distance in feet or meters
- Letter size auto-calculated from entered distance
- Pediatric fixation video clip selection
Chart Types
Every specialist test in one application — no switching software between exam types.
- Snellen — the universal standard acuity chart
- ETDRS / LogMAR — 5 letters per row, equal spacing, gold standard for clinical trials
- Worth 4-Dot — color-correct, calibrated for binocular testing
- Astigmatic Dial — sunburst target for cylinder axis estimation
- Fixation Disparity — binocular balance and vergence testing
- Reduced-contrast acuity — four optotype contrast levels (25/50/75/100%)
Optotypes
Standardized visual symbols used to measure visual acuity, including letters, numbers, geometric shapes, and directional figures. AcuityMaster offers:
- Letter optotypes — 20-letter set
- Tumbling E — patient indicates direction of prongs; no letter knowledge required
- Landolt C — ISO 8596 standard broken-ring optotype
- HOTV — four-letter matching chart for pre-literate children (ages 2.5+)
- Picture optotypes — apple, cake, car, chicken, hand, horse, phone, umbrella; designed for young children
Display Mode
Switch display mode instantly without leaving the chart — no reconfiguration needed between patients.
- Single Letter — isolates one optotype to eliminate the crowding effect; particularly useful for amblyopia testing
- Single Line — displays one complete acuity line at a time
- Multiline — full chart view in traditional Snellen format
Pediatric Friendly
AcuityMaster is designed with pediatric patients in mind. Picture optotypes feature objects children actually recognize today — including a cell phone, because today’s kids no longer know the rotary telephone.
- Picture optotypes (apple, cake, car, chicken, hand, horse, phone, umbrella)
- HOTV matching cards for children aged 2.5 and up
- Hands-free video fixation via keyboard or USB foot pedal
- Tumbling E and Landolt C for pre-literate patients
See the Accessories page for the compatible USB foot pedal.
Options
Tailor each exam without switching applications or reconfiguring your setup.
- Mirror mode — display behind the patient via a mirror for compact exam lanes; software flips the chart automatically. Also supports standard front-facing display.
- Toggle 20/XX label — show or hide the acuity notation on the patient-facing display.
- Crowding bars — add surrounding optotypes to isolate the crowding effect; essential for amblyopia assessment.
- Reduced contrast — four optotype contrast levels (25/50/75/100%).
- Red/Green overlay — for binocular balance and duochrome refraction.
Color Vision
Color vision screening is integrated directly into your exam workflow — no separate application or hardware required.
- Color vision screening plates on your exam-lane display
- Screen for red-green (protan and deutan) color deficiency
- One click from acuity testing to color vision — no workflow interruption
- Color reproduction depends on your monitor and room lighting — treat plate results as screening
- 8% of males have some color vision deficiency — efficient screening matters
Special Features
Practical features built around real exam-lane workflows — especially useful for dual-monitor setups and pediatric patients.
- Second-monitor support — run the chart full-screen on whichever display the browser is on; press H to hide the menu.
- Mirror Mode — chart displayed behind the patient via a mirror; software flips automatically for correct reading.
- Single-letter isolation — present one optotype at a time to remove crowding cues.
- Runs on existing hardware — Mac, Windows or iPad, in any current browser. Use the computer already in your exam lane.
See AcuityMaster in your office.
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