Editor,—I read the article by Sadiq and others with great interest.1 The figures presented, though in accordance with the literature,2-4 may be misleading at first sight. Of the 21 patients with endonasal laser dacryocystorhinostomy without intubation postoperatively, only 10 can be reported to be successful after 12 months. These are only 47.62% of the total number of patients who underwent surgery without stenting instead of the 91% reported. In the group of 65 patients with intubation postoperatively 41 (63.08%) were successful after 12 months instead of the 70% reported. Of the total number operated (86 patients) only 63 (59.3%) were successful after 12 months instead of the 81% reported. The figures presented by Sadiq and others are doubtless in accordance with the literature, because success rates and reported figures are heterogeneous. The only common feature of all studies is that failure of laser assisted dacryocystorhinostomy as a result of fibromembraneous scarring of the lacrimal system …