**7. Poor prognostic factors**

Presence of macular detachment, vitreopapillary traction, thinned out retina, sclerosed vessels, pale disc, neovascularisation of iris or NVG, macular ischemia, poor initial VA (<5/200) and loss of photoreceptor layers, ELM and ellipsoid zone on OCT are poor visual prognostic factors despite a successful anatomical outcome [27].

For a successful anatomic outcome, it is very important to understand the anatomy and surgical principles in a case of diabetic vitrectomy. One has to counsel the patient that visual outcomes may not always correlate with anatomical outcomes. Importance of good systemic control should always be emphasised.
