Small round shadow in centre of vision what is it?

Possible Causes:

- Posterior Vitreous Detachment (PVD):

- Age-related separation of the vitreous gel from the retina.

- Common, usually harmless if symptoms improve.

- Macular Degeneration:

- Age-related damage to the macula (central sharp vision area).

- Gradual loss of central vision.

- Epiretinal Membrane:

- Thin membrane on the retinal surface causing blurred vision.