Eye pain

Prevalence

 * Katrina Berne reports a prevalence of 30% for eye pain (although she notes that this is probably underreported and more prevalent than indicated).
 * A 2013 study by Hutchinson, et al, using a patient population of 59 answering questions on the DePaul Symptom Questionnaire found a 86% prevalence.

Notable studies

 * Vision-related symptoms as a clinical feature of chronic fatigue syndrome/myalgic encephalomyelitis? Evidence from the DePaul Symptom Questionnaire