Vitreous opacities have many names including vitreous floaters and mouches volantes.
Their impact on vision has been called myodesopsia, which is to me a positive dysphotopsia caused by blockage and scattering of light as it passes through the eye to the retina.
We are all familiar with the negative impact that opacities in the ocular media at any level can have on visual function. Every day we deal with corneal, natural lens and posterior capsule opacities and decide with the patient which are severe enough to require surgical intervention. In my opinion, vitreous opacities are no different. I