Unusual ultrasound biomicroscopy appearance after non-penetrating trabecular surgery with SK gel implant

Sir,

We report a case of an unusual ultrasound biomicroscopy (UBM) appearance in a POAG patient at 15 months after receiving non-penetrating trabecular surgery (NPTS). A 37-year-old male received NPTS of the right eye for POAG in a local hospital 15 months ago. After the operation, the IOP was controlled under 15 mmHg. At 14 months, he experienced severe pain in the right eye and blurred vision. Upon examination, the IOP was 50 mmHg, the cornea had oedema, and the pupil was slightly displaced superiorly. After treatment with 20% mannitol, the IOP was controlled and corneal transparency recovered. The gonioscopy examination showed that the iris root adhered to the remanent membrane of NPTS areas. Therefore, a laser iridectomy was performed and 0.005% latanoprost was administered daily, reducing the IOP to 20 mmHg.

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