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A syndrome characterized by the triad of uveitis, glaucoma, and hyphema caused by mechanical chafing of the iris due to malposition of an intraocular lens (IOL). Main risk factors include ciliary sulcus placement of a single-piece acrylic IOL and IOL decentration. Definitive treatment involves IOL repositioning or exchange.

An examination that uses high-frequency ultrasound (30–50 MHz) to obtain high-resolution tomographic images of the anterior segment. It can visualize structures that are difficult to observe optically, such as the posterior iris and ciliary body, and is useful for diagnosing angle-closure glaucoma, anterior segment trauma, and tumors.

Explains the principles, equipment, surgical technique, mechanism of action, and clinical outcomes of ultrasound cycloplasty (UCP). Covers indications, complications, and comparison with conventional cyclodestructive procedures using high-intensity focused ultrasound (HIFU) for ciliary body coagulation.

Definition of corneal epithelial damage caused by ultraviolet radiation, differences between electric ophthalmia and snow blindness, symptoms, diagnosis using fluorescein staining, and acute treatment and prevention.

A rare genetic disorder characterized by sensorineural hearing loss and retinitis pigmentosa. It follows an autosomal recessive inheritance pattern and is designated as an intractable disease in Japan. It is classified into three clinical subtypes, with progressive visual field constriction and hearing loss as features.

Macular edema secondary to uveitis, a major cause of visual impairment. Steroid administration is the mainstay of treatment, but new therapies such as suprachoroidal injection and dexamethasone implant have emerged in recent years.

Chronic uveitis complicating juvenile idiopathic arthritis (JIA). It accounts for up to 47% of pediatric uveitis cases and is a refractory ocular disease that often progresses asymptomatically, leading to visual impairment.

Ocular and orbital immune-related adverse events caused by immune checkpoint inhibitors (ICIs) used in cancer immunotherapy. They present with various conditions such as dry eye, uveitis, orbital myositis, and retinal vasculitis.