Abstract
Using the results of a study on trans-scleral photocoagulation by diodelaser (DL) performed on normal canine eyes, we treated glaucomatous canine eyes to improve clinical signs andpotentially to retain vision. Long-term post-operative changes, including intraocular pressure (IOP) were observed. IOP increased remarkably in both normal and glaucomatous eyes immediately after DL treatment, while thereafter it was significantly lower than that of pretreatment. Histological changes included necrosis and disruption of the ciliary epithelium and basal membranes. Short-term post-DL complications were, in order of frequency, conjunctival congestion, corneal opacity, and fibrin accumulation in the anterior chamber. Long-term changes were such dyscoria as fixed pupil and irregular pupil margin, posteriorlens luxation, and cataract. In most cases, clinical signs of glaucoma were resolved, and vision was restored in some
