- Q1.What is the difference between Smooth Pursuit and Saccadic eye movements?
- Smooth Pursuit Eye Movements (SPEM) involve voluntary, continuous tracking of a moving visual target to keep its image centered on the high-acuity fovea. In contrast, Saccades are rapid, ballistic jumps (up to 900 degrees/second) that shift gaze between stationary points. Athletes and gamers rely on smooth pursuit to track trajectories continuously and saccades to snap rapidly between targets.
- Q2.How does dynamic visual tracking training improve sports performance?
- Sports use moving-target observation and timing, but this browser task cannot measure dynamic visual acuity or prove transfer to a sport. Treat it as repeatable practice and compare only sessions made on the same setup.
- Q3.What is predictive pursuit, and how does the brain track occluded targets?
- Predictive pursuit describes using recent motion information to anticipate a target during a brief controlled occlusion. These drills provide a practice task; they do not measure the brain or guarantee a clinical or sport-performance change.
- Q4.What causes catch-up saccades during eye tracking, and how do you fix them?
- Catch-up saccades occur when your smooth pursuit velocity falls behind target speed (pursuit gain < 1.0), forcing an involuntary eye jerk to catch up. Graduated speed drills—such as constant-slow pursuit and sinusoidal wave tracking—condition continuous ocular motor gain, smoothing eye movement and eliminating visual jitter.
- Q5.Can these drills replace vision therapy or concussion care?
- No. A browser animation is not an assessment or rehabilitation plan. Anyone with concussion symptoms, double vision, persistent dizziness, eye pain, or a diagnosed visual disorder should follow a qualified clinician’s advice and stop if symptoms worsen.
- Q6.What is gaze stability, and how does it relate to the Vestibulo-Ocular Reflex (VOR)?
- Gaze stability means keeping a visual target clear while the visual scene or head position changes. These drills keep the head still and therefore do not test the vestibulo-ocular reflex (VOR) or diagnose visual-vestibular function.
- Q7.How long should you practice eye tracking drills each day?
- Use short, comfortable blocks with breaks rather than chasing a fixed prescription. Stop for pain, dizziness, nausea, persistent blur, double vision, or unusual symptoms; seek professional advice if symptoms persist.
- Q8.Why do high refresh rate monitors (144Hz to 360Hz) matter for visual tracking drills?
- Refresh rate and browser load affect how smooth the animation appears, but a higher refresh rate does not make the task a clinical measurement. The drills now use time-based motion, a capped render loop, and cached canvas layers to reduce avoidable frame work.
- Q9.Does this visual-tracking page track my eyes?
- No. The browser draws moving targets and records task settings or pointer responses, but it does not measure eye position. Treat each score as a repeatable browser-task result influenced by the display, input device, timing, and attention.
- Q10.Is this visual-tracking practice vision therapy or a diagnosis?
- No. These are general browser exercises for visual attention and moving-target practice. They do not diagnose, treat, or rule out an eye or neurological condition. Stop if tracking causes pain, dizziness, nausea, persistent blur, or unusual symptoms and seek appropriate professional advice.
