Myodesopsias includes floaters and flashes; it can be either, or both. Are you seeing both, and are either impacting your vision?
Do you have, or have you been tested for diabetes?
Is this a recent change in your vision?
Have you had a retinal examination?
If this is a recent change, or a change that you recall occurring (wasn't always there), it is of significant concern, and warrants examination.
A vitrectomy risks not only cateracts, but a retinal tear or separation. Both can be disqualifying. Cateracts are not guaranteed, but are certainly a possibility.
PVD, or post-vitreous detachment, is vitreal detachment from the retina (not the same as retinal detachment), and is typically accompanied by floaters, flashes, etc. An exam should include a humphrey fields test. An opthalmoloogist should be consulted for an exam, rather than an optimologist.
Eye floaters are common with aging, and also come with varioius conditions, such as Diabete; retinal bleeding, tearing, or a rupture. Any change should be investigated immediately.
Eye floaters are not just a function of old age, and so long as you have proper visual acuity (can pass the vision tests) and they aren't interfering with your vision (other than an annoyance) they should not present a problem, so long as this doesn't progress or get worse. A consultation with an opthalmologist should be conducted to verify there are no conditions associated with this, which warrrant treatment.