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Self-Assessment Tools

Which survey is right for you?

Choose the assessment that best matches your situation. Both surveys help our clinicians understand your vision symptoms before your appointment.

Select a survey to begin
Concussion / Brain Injury
BIVSS
Brain Injury Vision Symptom Survey

Use this survey if you have experienced a concussion, traumatic brain injury (TBI), stroke, or acquired brain injury. It screens for a broad range of vision symptoms across 7 categories including eyesight clarity, light sensitivity, depth perception, and reading.

Questions 28 items
Threshold Score ≥ 31
Scale 0 – 4 (0–112)
Est. Time ~5 min
Start BIVSS →
Near Vision / Reading
CITT
Convergence Insufficiency Symptom Survey

Use this survey if you experience eye strain, headaches, blurry or double vision, or difficulty concentrating when reading or doing close-up work. It is designed to identify convergence insufficiency (CI) — a common near-vision disorder.

Questions 15 items
Threshold Score ≥ 21
Scale 0 – 4 (0–60)
Est. Time ~3 min
Start CITT →
Not sure which to choose? Quick comparison
BIVSS CITT
Best for Concussion, TBI, stroke, ABI Reading strain, near-work difficulty
Symptoms covered Broad visual, spatial, reading, light sensitivity, dry eyes, depth perception Eye strain, headaches, blurring, double vision, concentration, reading difficulty
Number of questions 28 15
Clinical threshold ≥ 31 out of 112 ≥ 21 out of 60
Rating scale Never / Rarely / Sometimes / Often / Always Never / Infrequently / Sometimes / Fairly often / Always
Can I take both? Yes — some patients benefit from completing both surveys.