A 32-year-old patient complains of decreased visual acuity, nausea, iridescent circles in the eyes when looking at the light, and pain in the right eye. The pain radiates to the right temple. Objectively, the following is observed: right stagnant injection of scleral vessels, edematous cornea, shallow anterior chamber, dilated pupil. The fundus reflex is dull pink because of corneal edema. Intraocular pressure-58 mm Hg. What is the most likely diagnosis in this case?