An interventional study of Superior laser peripheral iridotomy and Temporal laser peripheral iridotomy in Glaucoma, Angle-Closure, sponsored by University of the Incarnate Word. Status unknown at 1 site in United States. Open to participants aged 18 Years and older. Per ClinicalTrials.gov, last updated 2020-04-14.
Sponsored by University of the Incarnate Word · Not applicable, Interventional, and Supportive care
To evaluate the influence of superior versus temporal laser peripheral iridotomy location on post-operative visual acuity and contrast sensitivity.
91 studies on the registry are indexed under Glaucoma, Angle-Closure; 17 are open to participants now.
This study's planned enrollment of 200 is above the median of 57 across 58 interventional studies indexed under Glaucoma, Angle-Closure.
Browse Glaucoma, Angle-Closure studies →University of the Incarnate Word is the lead sponsor of 15 studies on the registry; none are open to participants now.
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Exclusion Criteria:
Each subject in this single-arm study undergoes bilateral laser peripheral iridotomy surgery. Each participant will undergo superior laser peripheral iridotomy in one eye and temporal laser peripheral iridotomy in the fellow eye.
Procedure: Superior laser peripheral iridotomy
Each subject in this single-arm study undergoes bilateral laser peripheral iridotomy surgery. Each participant will undergo superior laser peripheral iridotomy in one eye and temporal laser peripheral iridotomy in the fellow eye.
Procedure: Temporal laser peripheral iridotomy
Iridotomy placement between 11:00 and 1:00 o'clock
Iridotomy placement at 3:00 or 9:00 o'clock
Change in visual acuity
Change from baseline best corrected visual acuity evaluated in number of letters correctly read on the ETDRS chart
Time frame: 30 days post-operative
Change in Peli-Robson contrast sensitivity
Change from baseline in contrast sensitivity evaluated in number of letters correctly read on the Peli-Robson chart
Time frame: 30 days post-operative
Change in CSV-1000 contrast sensitivity
Change from baseline in contrast sensitivity evaluated using the number of correct responses on the CSV-1000 test
Time frame: 30 days post-operative
Plan to share: No
No publications or documents are linked to this record.
Started Jan 2018 (actual). Primary completion is estimated for Feb 2021, 37 months after the start.
Of 28 interventional studies with no phase under Glaucoma, Angle-Closure, half reached primary completion within 35 months of starting (the median), counting those still running; a quarter within 23 and three quarters within 43. This study's planned 37 months is close to that.
How these figures are worked out, and which studies are left out of them.
This study is status unknown, as verified in Apr 2020. You cannot join it, but the record below documents what was studied.
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University of the Incarnate Word