Clarifying the Optimal Application of SLT Therapy Trial
Who can join
As published by the study on ClinicalTrials.gov. "Not stated" means the study hasn't said — ask the study team.
- Age
- 18 Years and older
- Sex
- All sexes
- Healthy volunteers
- Not accepted
- Compensation
- Not stated
Other requirements are listed under Eligibility below. Only the study team can confirm whether you can join.
What to expect
No one can promise a trial will help you personally — that is what the research is trying to find out.
What participation involves
Not stated in the study description — ask the study team about visits and procedures.
- Compensation
- Not stated
- Study-related exams and procedures are typically provided at no cost. This is how many trials work in general — confirm the details for this study with the study team.
- Participants are monitored closely by the research team throughout the study.
- Some participants may receive access to an investigational treatment, which is still being studied.
- Your participation helps researchers learn whether this approach could help future patients.
About this study
The goal of this study is to understand if SLT performed at low energy is as effective as SLT performed at standard energy, and also to see if repeating SLT at low energy once a year will prevent or delay the need for daily eye drop medications better than waiting for SLT to wear off before repeating it.
Compensation is read from the study's own description and may be missing — always confirm with the study team.
Eligibility
Official eligibility criteria
Inclusion Criteria: 1. Age 18 or older and in good health 2. Each eye with one of the following qualifying diagnoses (diagnoses may differ between eyes): 1. High-risk ocular hypertension (OHT): IOP \> 21 mmHg without glaucomatous optic neuropathy (excavation, diffuse or focal thinning or notching of the neuroretinal rim, visible nerve fiber layer defects, or asymmetry of the vertical cup-to-disc ratio of \>0.2 between eyes) 2. Mild primary open-angle glaucoma: glaucomatous optic neuropathy, visual field mean deviation better than -6.0 dB with no points in the central 5° \<15 dB (see figure on next page) 3. Moderate primary open-angle glaucoma: glaucomatous optic neuropathy, visual field mean deviation equal to or worse than -6.0 dB but no worse than -12.0 dB and no central 5° points \<15 dB or mean deviation -12.0 dB or better with 1 central 5° points \<15 dB (see figure on next page). 3. Each eye with BCVA 20/200 (UK 6/60) or better Exclusion Criteria: 1. Use of topical IOP-lowering medications for more than 6 cumulative months at any time in the past 5 years (this is a modification implemented during active enrollment) 2. Any history of IOP-lowering laser (prophylactic iridotomy not included) or surgical procedure 3. Advanced POAG in either eye (worse than moderate POAG as defined above) 4. Glaucoma other than POAG (including pigmentary and pseudoexfoliation glaucoma) in either eye 5. Mean IOP \> 35 mmHg at either the screening or baseline visit in either eye 6. Narrow or closed angle (Shaffer Grade 0, 1, or 2) in either eye 7. Contraindications to SLT or any other study intervention 8. Any corneal pathology that would preclude accurate assessment of IOP by Goldmann tonometry in either eye 9. Any intraocular surgical procedure within the past 6 months in either eye 10. Inability to attend all scheduled study visits 11. Pregnant or planning to become pregnant in the next 4 years
Study sites (28)
CA
- Harvard Eye Associates · Laguna Hills, CA 92653Ashwini Ravichandran · Study contact · 949-951-2020 · aravichandran@harvardeye.comYe Elaine Wang, MD · Principal investigatorMore trials in Laguna Hills
- Doheny Eye Center UCLA · Pasadena, CA 91105Mayra Raygoza · Study contact · (626) 817-4747 ext. 19093 · MRaygoza@mednet.ucla.eduJudy L Chen, MD · Principal investigatorMore trials in Pasadena
- University of California, Davis · Sacramento, CA 95817Leslie Valverde · Study contact · 916-734-6302 · ldlopez@ucdavis.eduJames Brandt, MD · Principal investigatorMore trials in Sacramento
- University of California, San Francisco · San Francisco, CA 94158Ethan Liang · Study contact · (415) 525-9890 · Ethan.Liang@ucsf.eduYing Han, MD · Principal investigatorMore trials in San Francisco
CO
- Mile High Eye Institute · Sheridan, CO 80110Michelle Lopez Galindo · Study contact · (303) 482-1300 ext. 106 · Michelle@mhei.comZachary Vest, MD · Principal investigatorMore trials in Sheridan
FL
- Clear Vue Laser Eye Center · Lakeworth, FL 33467Michelle Hill · Study contact · 561-432-4141 · michelle@clearvuenow.comMonique Barbour, MD · Principal investigatorMore trials in Lakeworth
IL
- Northwestern Medical Group · Chicago, IL 60615Madison Wood · Study contact · (312) 695-0252 · madison.wood@northwestern.eduAngelo Tanna, MD · Principal investigatorMore trials in Chicago
- Chicago Arbor Eye Institute · Orland Park, IL 60467Lorene Rafol · Study contact · 708-249-1026 · lorenerafol@arboreyecare.comRichard Quinones, MD · Principal investigatorMore trials in Orland Park
- Illinois Eye Center · Peoria, IL 61615Lori Hendershott · Study contact · 309-213-0664 · lhendershott@illinoiseyecenter.comSachin Kalarn, MD · Principal investigatorMore trials in Peoria
MA
- Massachusetts Eye and Ear · Boston, MA 02114Michael Cheung · Study contact · mcheung0@meei.harvard.eduMichael Lin, MD · Principal investigatorMore trials in Boston
- Ophthalmic Consultants of Boston · Boston, MA 02451Jessica Placher · Study contact · (617) 314-2734 · jplacher@eyeboston.comTheodor Sauer, MD · Principal investigatorMore trials in Boston
- Mark Latina, LLC · Reading, MA 01867Ann Gardikas · Study contact · 781-942-9876 · anngardikas76@gmail.comMark Latina, MD · Principal investigatorMore trials in Reading
MD
- Wilmer Eye Institute Johns Hopkins · Baltimore, MD 21287Rucha Thaker · Study contact · 908- 616-1807 · rthaker2@jh.eduPradeep Ramulu, MD · Principal investigatorMore trials in Baltimore
MI
- University of Michigan Kellogg Eye Center · Ann Arbor, MI 48105Lindsay Rudberg · Study contact · 734-647-9196 · rulindsa@med.umich.eduAmanda Bicket, MD · Principal investigatorMore trials in Ann Arbor
- Kresge Eye Institute Wayne State University · Detroit, MI 48201Bayan El-Haik · Study contact · 313-515-5487 · bayan.el-haik@wayne.eduBret Hughes, MD · Principal investigatorMore trials in Detroit
NY
- New York Eye Surgery Associates · The Bronx, NY 10469Krystina Tavarez-Feliciano · Study contact · 347-860-4474 · kfeliciano@nyeye.comNathan Radcliffe, MD · Principal investigatorMore trials in The Bronx
OH
- University Hospitals Eye Institute · Cleveland, OH 44106Sangeetha Raghupathy · Study contact · 216-844-8552 · Sangeetha.Raghupathy@uhhospitals.orgDouglas Rhee, MD · Principal investigatorMore trials in Cleveland
- Cleveland Clinic Cole Eye Institute · Cleveland, OH 44195Dusica Vasic · Study contact · 216-445-3840 · vasicd@ccf.orgAng Li, MD · Principal investigatorMore trials in Cleveland
OR
- Devers Eye Institute · Portland, OR 97210Jack Rees · Study contact · 503-413-8495 · jrees@deverseye.orgRobert Kinast, MD · Principal investigatorMore trials in Portland
PA
- Eye Care Specialists · Kingston, PA 18704Cheryl Bayley · Study contact · 570-714-5915 · cheryl.bayley@vipeyes.comDaniel Lutz, MD · Principal investigatorMore trials in Kingston
- Scheie Eye Institute · Philadelphia, PA 19104Criston Young · Study contact · 856-519-8295 · Criston.Young@pennmedicine.upenn.eduAhmara Ross, MD · Principal investigatorMore trials in Philadelphia
- Wills Eye Hospital · Philadelphia, PA 19107Meskerem Divers · Study contact · 215-825-4712 · MDivers@willseye.orgLauren Hock, MD · Principal investigatorMore trials in Philadelphia
- UPMC Eye Center · Pittsburgh, PA 15213More trials in Pittsburgh
TN
- Vanderbilt Eye Institute · Nashville, TN 37232Marybeth Carter · Study contact · 616-936-1639 · marybeth.l.carter@vumc.orgRachel Kuchtey, MD · Principal investigatorMore trials in Nashville
TX
- Ophthalmology Associates · Fort Worth, TX 76102Kaitlin Sinclair · Study contact · 940-452-1173 · ksinclair@oafw2020.comBrian Flowers, MD · Principal investigatorMore trials in Fort Worth
WA
- Spokane Eye Clinical Research · Spokane, WA 99204Dylan Waidelich · Study contact · 509-623-9768 · dwaidelich@spokaneeye.comRory Allar, MD · Principal investigatorMore trials in Spokane
WI
- University of Wisconsin-Madison · Madison, WI 53705Kelly Boyd · Study contact · 608-265-4589 · kmboyd@wisc.eduYao Liu, MD · Principal investigatorMore trials in Madison
WV
- West Virginia University · Morgantown, WV 26505Athena Echols, LPN · Study contact · 304-598-6977 · athena.sparks@wvumedicine.orgTony Realini, MD, MPH · Principal investigatorMore trials in Morgantown