Eye Comfort & Vision Trainer

Overview

Daily tools to reduce screen-induced eye strain and train eye coordination.

Read me first. This app is not a medical device and does not diagnose or treat any condition. It is not a substitute for prescribed glasses, prism lenses, or any treatment your eye doctor recommends — keep using what your doctor prescribed. These are comfort habits and vision-therapy-style exercises that may be used alongside professional care. Stop any exercise that increases headache, dizziness, or nausea, and tell your eye doctor what you're doing.

What's inside

Break Timer — 20-20-20 rule with blink reminders.
Smooth Pursuit — follow a moving target (head still).
Saccades — jump your eyes between targets.
Vergence — converge/diverge training (the core of binocular-vision therapy).
Near/Far Focus — accommodation shifting.

How to use it

Sit at your normal screen distance, head still unless told otherwise.
Start with 2–3 minutes per exercise, once or twice a day.
It should feel like mild effort, never pain.
Wear your prescribed glasses unless your doctor says otherwise.
Consistency beats intensity.

Today

Exercises done0

Minutes trained0

Breaks taken0

Guided Vision-Therapy Program

A structured ~12-minute session built around convergence training + accommodative relaxation — matched to near exophoria / convergence insufficiency (drift worse up close).

Supplement, not a substitute. Real vision therapy is done with a binocular-vision optometrist; this is home reinforcement. Keep wearing your prescribed prism (Base-In) glasses unless your doctor says otherwise. The convergence steps deliberately make your eyes work — mild effort is the point, but stop if you get a headache, see persistent double, or feel sick.

The session

Accommodative warm-up — near/far focus shifts (relaxes the spasm). 90s
Pencil push-ups (NPC) — bring a target slowly toward your nose, keep it single. 2 min
Smooth convergence — fuse two dots as they slowly separate. 2.5 min
Vergence jumps — re-fuse rapidly as separation steps in/out. 2 min
Brock string (physical) — guided instructions for the at-home string drill. 2 min
Cooldown — distance gaze + blinking. 60s

— 0:00

Ready when you are

Have a pen/pencil and (optionally) a Brock string ready. Sit at normal screen distance, head still unless told otherwise. Press Start guided session.

Progress & Symptom Tracker

Rate your symptoms each day (0 = none, 4 = severe). Tracks the same dimensions an eye-comfort assessment uses, so you can show your optometrist real before/after data.

Today's check-in

Trend — overall symptom load, last 21 days

today →

No entries yet — save a check-in to start your trend.

Report for your eye doctor

Generates a printable one-pager from your logged data plus the key questions worth asking. All data stays on your device.

⬆️ Import

Break Timer (20-20-20)

Every 20 minutes, look at something ~20 feet away for 20 seconds. Reduces accommodative strain.

20:00

Ready

Work interval (min) Break length (sec) Blink reminders Chime

Smooth Pursuit Tracking

Keep your head still and follow the dot with your eyes only.

Pattern Speed 1.0× Dot size 18px Duration 120s

0:00

Tip: chin steady, neck relaxed. Only your eyes move. Blink normally.

Saccades

Snap your eyes between targets as they appear. Trains fast, accurate fixation jumps.

Mode Interval 1.0s Duration 90s

0:00 Jumps: 0

Move only your eyes, as quickly and accurately as you can, to each new target.

Vergence Training

The two dots split apart and come together. Fuse them into one. This trains convergence/divergence — the core deficit behind most screen-strain headaches.

Use the technique your eye doctor recommended. If fusing causes pain or doubling that won't resolve, stop and ask them.

Mode Max separation 160px Speed 1.0× Duration 120s

0:00 Show fusion guide

When fused correctly you'll perceive a single dot in the middle (with a faint one on each side). Hold it steady as they move.

Near / Far Focus Shifting

Alternate focus between a near point (your fingertip ~30cm away) and a far point across the room. Trains accommodation flexibility.

Ready

Press start. Hold a finger up near your nose for the "NEAR" cue.

Hold each (sec) 5s Cycles 10

Cycle 0

Dry Eye & Blink Training

Screen use cuts your blink rate by more than half, and many people blink incompletely — a major cause of dryness, watering, and burning. This trains slow, complete blinks.

Ready

Press start. Follow the prompt: close gently & fully, pause, then open.

Pace (sec/blink) 4s Duration 60s Add 20s palming rest at end

0 blinks

Dry-eye comfort tips (general wellness)

Complete blinks — fully close; a half-blink leaves the lower cornea exposed.
20-20-20 — use the Break Timer; looking away relaxes focus and prompts blinking.
Screen below eye level — a downward gaze narrows the eye opening and slows evaporation.
Humidify & avoid direct airflow — fans/AC/vents blowing at your face dry the eyes fast.
Preservative-free artificial tears are commonly used for screen dryness — but ask your eye doctor what's right for you, especially after LASIK.

Watering is often the eye's reflex response to dryness — treating dryness frequently reduces the tearing too. Persistent symptoms need a professional exam.

Settings

Preferences are stored locally in your browser. Nothing is uploaded anywhere.

Sound cues globally Reduce motion (gentler animation)

Privacy: this is a single static HTML file. No accounts, no network calls, no tracking.