01Feb 2023
Retinal vessel diameters and microvascular abnormalities in patients with carotid stenosis before and 6 months after carotid endarterectomy: A prospective study

Retinal vessel diameters and microvascular abnormalities in patients with carotid stenosis before and 6 months after carotid endarterectomy: A prospective study

The study aimed to assess retinal findings in patients with severe carotid stenosis (CS) before and after carotid endarterectomy (CEA) compared to those in controls. The study results showed that CRAE was similar in the ipsi‐and contralateral eyes of the patients and similar to that of the controls both pre-and postoperatively. Preoperatively, it was observed higher CRVE in the patients' ipsilateral than in their contralateral eyes and likewise higher than in the controls' eyes. CRVE decreased postoperatively in the patients' ipsilateral eyes. Among the microvascular abnormalities, arteriolar and venular tortuosity in the macula showed higher grades in the patients than in the controls preoperatively but not postoperatively. Thus from the study results, it can be concluded that CRVE decreased after CEA, showing that venules constrict after the mechanical hindrance of blood flow is removed. Higher grades in arteriolar and venular tortuosity in the macula, a potential ocular biomarker of CS, subsided after CEA.

  • #ophthalmology

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