Could fibromyalgia actually be diagnosed with a simple eye test?
It could very well be.
In Spain there was a study done Fibromyalgia Is Correlated with Retinal Nerve Fiber Layer Thinning, in PLOS One The study had 116 subject with FM and 144 controls.
This layer looks to be atrophied in people with FM compared to their control group. Reminds me a lot of the brain imaging work where we have atrophying in certain areas there as well... but this can be easily imaged.
Apparently when looking at the retinal nerve fiber layer of the FM subjects there was axonal damage in the optic nerve even in the early stages of FM.
<60 atrophy="" exhibited="" in="" p="" rnfl="" sectors.="" sub-clinical="" temporal="" the="">There was also distinctions found within FM subgroups. Those with biologic FM which has low depression and anxiety, but high pain, were showing significant decrease in the retinal nerve fiber layer in the temporal inferior and temporal superior areas compared to FM subjects who have depressive or atypical FM.
Longer-term studies are required to evaluate the clinical application of RNFL measurements in FM patients as a diagnostic tool, to follow disease progression, to identify patients with worse prognosis or at higher risk for loss of quality of life, and to measure treatment effectiveness.,” PLOS