Polychromatic Aqueous and Vitreous Crystals Due to Phacolytic Glaucoma in a Patient With Marfan Syndrome and Lens Dislocation.

To describe a patient with Marfan syndrome and crystalline lens luxation who developed phacolytic glaucoma with polychromatic crystals in the anterior chamber and vitreous. We present a retrospective case report. A 58-year-old man with Marfan syndrome and crystalline lens luxation since childhood presented with 2 days of pain in the left eye. The visual acuity was 20/30 OS with an aphakic contact lens, and the intraocular pressure (IOP) was 31 mm Hg. Polychromatic crystals were evident in the anterior chamber and vitreous. The retina was attached. Despite medical treatment, the IOP remained elevated; therefore, a pars plana vitrectomy and lensectomy were performed. At the last follow-up, the IOP was normal and the retina remained attached. Phacolytic glaucoma can be seen in eyes with a subluxated or luxated mature or hypermature lens. In these rare cases, iridescent crystals can be observed in the aqueous and vitreous. Vitrectomy with lensectomy is the definitive treatment.