A 65-year-old patient complains of gradual worsening of the left eye vision during 10 months. On physical examination: acuity of vision of the left eye is 0,01, not correctable. The eye is not irritated, the pupil of the eye is greyish, reflex from the fundus is absent. Intraocular pressure is 18 mm Hg. What is the most probable preliminary diagnosis?