Non-contact direct selective laser trabeculoplasty: Light propagation analysis

Zachary S. Sacks, Masha Dobkin-Bekman, Noa Geffen, Mordechai Goldenfeld, Michael Belkin

Research output: Contribution to journalArticlepeer-review

Abstract

Selective laser trabeculoplasty (SLT), used to treat glaucoma and ocular hypertension, requires the use of a gonioscope placed on the cornea to visualize and irradiate the trabecular meshwork (TM). Alternatively, non-contact direct SLT (DSLT) irradiates the TM through the overlying tissues. Here we analyze this innovative procedure using analytical modeling and Monte Carlo simulations to quantify the laser energy reaching the TM through the overlying tissues. Compared with energy launched from the laser, DSLT energy transmission to the TM is 2.8 times less than SLT, which verifies the efficacy of non-contact DSLT given the lowest reported effective SLT energies.

Original languageEnglish
Pages (from-to)2889-2904
Number of pages16
JournalBiomedical Optics Express
Volume11
Issue number6
DOIs
StatePublished - 1 Jun 2020

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