This study evaluates the retinal vascular features using optical coherence tomography angiography in patients that received endoscopic endonasal approach for the removal of an intra-suprasellar pituitary adenoma compressing the optic nerve.

To investigate the potential role of optical coherence tomography angiography in predicting the postoperative recovery of retinal vascular network of the optic disc in patients before and at 3 months after Endoscopic Endonasal Approach for the removal of an intra-suprasellar pituitary adenoma compressing the optic nerve.

The optical coherence tomography angiography represents a novel and non-invasive diagnostic technique that allows a detailed analysis of retinal vascular features.

Inclusion Criteria:

• age older than 45 years
• diagnosis of pituitary adenoma
• treatment-naïve with Endoscopic Endonasal Pituitary Surgery
• absence of other neurological diseases
• absence of vitreoretinal and vascular retinal diseases

Exclusion Criteria:

• age younger than 45 years
• No diagnosis of pituitary adenoma
• previous treatments with Endoscopic Endonasal Pituitary Surgery
• presence of neurological diseases
• presence of vitreoretinal and vascular retinal diseases

The participans were older than 45 years with pituitary adenoma. They did not present other ophthalmological and neurological diseases.