A patient complains of pain, photophobia, lacrimation, and impaired vision in the right eye. The visual acuity of the right eye is 0.5, cannot be corrected, the visual acuity of the left eye is 1.0. Objectively, the palpebral fissure is narrowed in the right eye, pericorneal injection of the eyeball is observed. Precipitates were detected on the posterior corneal surface. The pupil is narrowed, the response to light is slowed. Floating opacities are observed in the anterior part of the vitreous body. The fundus is normal. What is the most likely diagnosis in this case?