The Visual
Acuity System.

Anatomy Of A System

Four things make an acuity system.

Strip any visual acuity system — hardware panel or software — to its essentials and you find four components. A trustworthy display: optotypes at clinically exact physical sizes for the lane's distance. A test library: acuity charts in multiple optotype families plus the specialty tests around them. Exam-room controls: the clinician changes lines, isolates letters, and flips eyes without leaving the phoropter. And practice-scale rollout: the same system in every lane, consistently calibrated, centrally managed.

The traditional answer bundles those four into a dedicated appliance, sold per lane at dealer-quoted prices that commonly run $2,600–$4,200 — before mounting, service plans, and the next hardware generation. The software answer supplies them as an application: Ocular Edge pairs any Smart TV, monitor, or tablet to your practice with a 6-digit code, and the four components arrive as a download.

Calibration is the system's spine.

A consumer TV becomes clinical equipment at exactly one moment: when the software stops guessing what size a pixel is. Ocular Edge never trusts a display's self-reported dimensions — setup walks staff through matching an on-screen overlay against a physical ruler, capturing the true pixels-per-millimeter of that exact panel. Paired with the lane's measured distance (10–20 ft, 4–6 m, or any custom length, with mirror mode for half-length rooms), every optotype renders at its exact clinical size — a 20/20 letter at 8.87 mm for a 20-foot lane, verifiable with the same ruler. An automated suite of 41 clinical accuracy tests guards that math on every release.

A library, not a chart.

All 20 chart types and tests ship in every plan: Sloan Letters, Numbers, LogMAR/ETDRS with per-letter −0.02 logMAR scoring, Tumbling E, Landolt C, HOTV, Kids Animals, Inverse B&W, Color Vision, Astigmatism Dial, Duochrome, Contrast Sensitivity, Fixation Dot, Worth 4 Dot, Amsler Grid, Cross Cylinder, Coincidence, G/R Balance, Schober, and Traffic Lights — plus TRIAD, a 45-trial adaptive screening that profiles acuity, contrast sensitivity, and crowding through three Bayesian channels. Acuity charts randomize on every press, isolate single optotypes for amblyopia work, and add crowding bars for pediatric protocols.

Driven from the stool, not the keyboard.

During an exam the system answers to the remote in your hand: number keys launch chart types, arrows walk the lines, one key cycles OD → OS → OU, another toggles single-letter mode, another mirrors the lane. A FLIRC USB adapter makes any infrared remote work on any display; Fire TV lanes use the remote already in the room. Lanes keep working offline once loaded — a dropped connection never interrupts a patient — and the display stays awake through the whole clinic day.

A system that outgrows the exam lane.

Because it's software on ordinary screens, the system extends where appliances can't: your logo and colors flow onto every chart screen and idle screensaver, and the same platform runs a self-operating waiting room channel — branded promotion decks, live patient reviews, local weather, health tips, and news on the lobby TV. Add AI tools that draft slide decks, social posts, and billing-code answers, and the acuity system becomes the practice's screen layer. One subscription, from $24.99 per lane monthly or $449 once per lane, Enterprise at $225/month for up to 20 lanes.

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