biostudies-literatureUnknown2025(7)Zou HInsect-associated intraocular foreign body (IOFB) is a rare etiology of ocular injury. Ocular exposure to tussock moth hairs, or setae, have been associated with ophthalmia nodosa, endophthalmitis, cataracts, and long-term vision loss. We present a case of a vitreous hemorrhage and tractional retinal detachment induced by Tussock moth cocoon setae. A 12-year-old male suffered a left eye injury induced by Tussock moth cocoon setae, causing vitreous hemorrhage and tractional retinal detachment. He underwent pars plana vitrectomy with removal of IOFB, endolaser, fluid-air exchange, and injection of 14% C3F8 gas. He subsequently developed a visually significant cataract treated with lensectomy, intraocular lens implantation, and yttrium-aluminum-garnet laser capsulotomy, after which he regaineOxford medical case reportsomaf099https://www.ebi.ac.uk/biostudies/studies/S-EPMC12258034biostudies-literatureOcular complications of tussock moth cocoon associated injury.PMC12258034Zou HGeddie BAaberg TfalseOcular complications of tussock moth cocoon associated injury.Insect-associated intraocular foreign body (IOFB) is a rare etiology of ocular injury. Ocular exposure to tussock moth hairs, or setae, have been associated with ophthalmia nodosa, endophthalmitis, cataracts, and long-term vision loss. We present a case of a vitreous hemorrhage and tractional retinal detachment induced by Tussock moth cocoon setae. A 12-year-old male suffered a left eye injury induced by Tussock moth cocoon setae, causing vitreous hemorrhage and tractional retinal detachment. He underwent pars plana vitrectomy with removal of IOFB, endolaser, fluid-air exchange, and injection of 14% C3F8 gas. He subsequently developed a visually significant cataract treated with lensectomy, intraocular lens implantation, and yttrium-aluminum-garnet laser capsulotomy, after which he regaine2025-01-01T00:00:00Z2025 Jul2026-03-16T01:31:29.527Z2025-08-14T03:05:42.569ZS-EPMC122580344066606510.1093/omcr/omaf099