Viewing Intraocular Flowers Through a Mist with Full-Range SS-OCTA！

A 38-year-old male patient with diabetes presented with a two-year history of progressive bilateral vision decline. Color fundus imaging revealed intraretinal hemorrhages, microaneurysms, and cataracts in both eyes, along with epiretinal proliferative membranes located over and inferonasal to the optic disc in the left eye (Fig. 3). Follow-up ultra-widefield (UWF) SS-OCT demonstrated progressive development of epipapillary proliferative membranes and retinal thickening (Fig. 4).

A 24 mm × 20 mm UWF full-range OCTA scan provided clear visualization of nonperfusion areas, with numerous microaneurysms and intraretinal microvascular abnormalities (IRMA) in the superficial retinal slab (Fig. 1, left), as well as the vasculature of the proliferative membrane in the vitreous slab (Fig. 1, right). Using built-in software, the area of neovascularization was quantified to support longitudinal follow-up and disease management (Fig. 2).

An ultra-widefield full-range swept-source OCTA system (TowardPi Medical) was used in this case to achieve comprehensive SS-OCTA imaging of retinal vascularization. The device enables quantitative analysis across all vessel sizes, supporting objective and quantitative disease management.

Case courtesy of Dr. Shujun Wang, Qianshan Municipal Hospital.

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