Fig. (1) Biometric examination of anterior ocular segment. Ultra bio-microscopic observation shows that plateau iris configuration is observed in the both-side eyes and ciliary body is shifted forward (a,b). Results of two SPAC measurements were depicted in Fig. (1c,d). In March 2004, IOP was 34mmHg, (c) while in August 2004, IOP was 15mmHg without any anti-glaucoma treatment. (d) * : risky point for ACG automatically judged by SPAC. Bold lines indicate the ACD at the point of 4.8 mm from the central. ACD: anterior chamber depth, SACG: secondary angle closure glaucoma.