Nineteen neodymium laser cyclocoagulations were performed on 18 glaucomatous eyes. Thirteen eyes can be considered successfully treated if a criterion of an intraocular pressure of 30 mm Hg or less is used. All 18 eyes are now pain-free. Neodymium cyclocoagulation seems as effective as ruby cyclocoagulation in blue and brown eyes, and may possibly be more effective in dark-brown eyes. The intraocular pressure lowering effect of neodymium cyclocoagulation may be slightly greater than that of ruby cyclocoagulation. To date, no serious complications of this procedure have been found.
Beckman H, Sugar HS. Neodymium Laser Cyclocoagulation. Arch Ophthalmol. 1973;90(1):27–28. doi:10.1001/archopht.1973.01000050029006