To measure the efficacy and safety outcomes of SLT performed by optometrists.

Participants will undergo a pre-procedure examination in order to record baseline findings and to determine if they meet the inclusion criteria in order to undergo the procedure. Participants will undergo the SLT procedure and will be examined at 1 hour, 1 week and 6 weeks. Follow up examinations will evaluate eye pressure reduction and post-procedure complications. The rate complication post-procedure are typically low.

Inclusion Criteria:

1. Ability to provide written informed consent;
2. At least 18 years of age, male or female, of Native American or Alaskan Native descent;
3. Diagnosed with primary open angle glaucoma or ocular hypertension;
4. Documented intraocular pressure greater than or equal to 23 mmHg;
5. No prior glaucoma treatment unless treated with one topical drop.

Exclusion Criteria:

1. History of trauma or ocular surgery within the last 6 months;
2. History of corneal dystrophy;
3. Current use of topical or systemic steroids;
4. Advanced or severe glaucomatous findings based on comprehensive examination;
5. Diagnosed with other types of glaucoma such as pseudoexfoliation syndrome, pigmentary glaucoma, normal tension glaucoma, and other additional glaucoma subtypes.

Existing patients at primary eye care optometric facilities.