The New Orleans singer is currently one of the hottest R&B artists in the industry, so no one would guess he’s been quietly dealing with an eye disease for some time now.

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According to August, he’s blind in his left eye and slowly losing vision in his right. Fortunately, he’s undergone a procedure that should help him maintain his sight.

The 22-year-old shared a photo of the procedure at the start of the weekend. In it, his eyes are being held open with metal clasps, while a green light is projected directly onto his corneas.