I have dark spots in my peripheral vision, i've seen a retinal specialist and a neurologist and everything is normal but my vision is getting worse?

See a neuroopthalm: ologist for a second opinion if you're not satisfied. These specialists are neurologists, who've been trained doing an extended 2 year ophthalmology fellowship. So they have the combined expertise of understanding the eye, vision, and medical visual problems/ conditions. The eye is an extension of the brain & is considered neuro tissue. So, it's important to find out why you have ongoing symptoms.