Ophthalmologists may want to offer SLT at earlier time

Argon laser trabeculoplasty was first presented to ophthalmologists by Wise and Witter in 1979. ALT found a place in clinical practice after drops and before surgery. Twenty years later, in 1999, Mark Latina, MD, reported his initial results with selective laser trabeculoplasty. SLT uses a frequency-doubled 532 nm Q-switched Nd:YAG laser rather than an argon laser.
The amount of energy applied to the trabecular meshwork with SLT is about 1% of that applied in ALT. The SLT laser pulse duration is only 3 nanoseconds. The spot size is always 400 (Read more...)