Evidence map›Paper›PMID 32821494›Full record

Trial reportTranslational vision science & technology2020

Histologic Changes Following Continuous Wave and Micropulse Transscleral Cyclophotocoagulation: A Randomized Comparative Study.

Kareem Moussa, Max Feinstein, Melike Pekmezci, Jun Hui Lee, Michele Bloomer, Catherine Oldenburg, Zhimin Sun, Richard K Lee, Gui-Shuang Ying, Ying Han

Registry-linked trialOpen access · goldAbstract readRandomized Controlled Trial
In one paragraph

Trial report in Translational vision science & technology, 2020. The graph could read no effect estimate from its abstract, so it casts no vote on the map. It is linked to trial NCT07152132 (Slow Coagulation Trans-Scleral Cyclophotocoagulation Versus Trabeculectomy in Medically Uncontrolled Open-Angle Glaucoma in Pseudophakic Patients), which is not on this map. Cited by 29 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
29citing papers in PubMed, 1 pooled it
6.7field-weighted citation impact, top 2% of its field
1 · What the graph read from it

What it found

Each row is one number read from the abstract, on the scale the paper reported it, with its interval. Left of the dashed line favours the treatment, right favours the comparator. Under each row is the sentence it came from. New to these charts? A ten-minute tutorial.

The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.

2 · The registry

The trial behind it

Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.

NCT07152132 narecruitingnot on this mapstarted 2025, after this paper: background citation

Slow Coagulation Trans-Scleral Cyclophotocoagulation Versus Trabeculectomy in Medically Uncontrolled Open-Angle Glaucoma in Pseudophakic Patients

TypeinterventionalSponsorMinia UniversityRan2025 to 2026Enrolled50ConditionsGlaucoma, Open AngleArmsTrabeculectomy, Slow coagulation trans-scleral cyclophotocoagulation
3 · Its place in the literature

Who cites it

29 citing papers in PubMed, 1 synthesis or guideline pooled it, 72 citations in OpenAlex.

  1. Pooled it
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  16. Review
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  18. Review
  19. Outcomes of microPulse transscleral laser therapy in eyes with prior glaucoma aqueous tube shunt.Graefe's archive for clinical and experimental ophthalmology = Albrecht von Graefes Archiv fur klinische und experimentelle Ophthalmologie · 2023
    Article
  20. Article
4 · The record

Corrections and comments

PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.

5 · Who and what money

Authors and funding

10 authors at 4 institutions in 2 countries.

Kareem MoussaDepartment of Ophthalmology, University of California, San Francisco, San Francisco, CA, USA.
Max FeinsteinDepartment of Ophthalmology, University of California, San Francisco, San Francisco, CA, USA.
Melike PekmezciDepartment of Ophthalmology, University of California, San Francisco, San Francisco, CA, USA.
Jun Hui LeeDepartment of Ophthalmology, University of California, San Francisco, San Francisco, CA, USA.
Michele BloomerDepartment of Ophthalmology, University of California, San Francisco, San Francisco, CA, USA.
Catherine OldenburgDepartment of Ophthalmology, University of California, San Francisco, San Francisco, CA, USA.
Zhimin SunDepartment of Ophthalmology, University of California, San Francisco, San Francisco, CA, USA.
Richard K LeeBascom Palmer Eye Institute, University of Miami Miller School of Medicine, Miami, FL, USA.
Gui-Shuang YingDepartment of Ophthalmology, University of Pennsylvania, Philadelphia, PA, USA.
Ying HanDepartment of Ophthalmology, University of California, San Francisco, San Francisco, CA, USA.
University of California, San Francisco · USNantong University · CNUniversity of Miami · USUniversity of Pennsylvania · US

Funding

Rapid-Prototyping and Design CoreP30EY002162 · NEI · UNIVERSITY OF CALIFORNIA, SAN FRANCISCO · PI LAKKARAJU, APARNA · 1985 to 2024
$16.8M
Fibrosis-free Glaucoma Drainage ImplantsR21EY028747 · NEI · UNIVERSITY OF TEXAS AT AUSTIN · PI HAN, YING, XIE, CHONG · 2018 to 2019
$392k
NEI NIH HHS P30 EY002162NEI NIH HHS R21 EY028747
6 · The paper itself

Abstract

Purpose: To compare the macroscopic and microscopic histologic changes in eyes treated with micropulse transscleral cyclophotocoagulation (MP-TCP) versus continuous wave transscleral cyclophotocoagulation (CW-TCP). Methods: Twelve halves of globes from three pairs of adult cadaveric eyes were randomly assigned to nontreated control, CW-TCP, single MP-TCP treatment, or double MP-TCP treatments, and then sectioned for histologic analysis. Presence or absence of the following four unique histologic changes was recorded: splitting within the ciliary process epithelium (splitting), separation of the pigmented ciliary process epithelium from the stroma (separation), coagulation of collagen and destruction of ciliary process stroma (coagulation), and full-thickness destruction of ciliary process epithelium (destruction). Results: A total of 498 slides were analyzed, and laser scars in all treated specimens were located in the pars plana. Logistic regression analysis showed that compared with controls, CW-TCP-treated specimens were significantly more likely to experience separation (odds ratio [OR] = 11.1, Conclusions: MP-TCP does not produce significant histologic changes in cadaveric eyes, whereas CW-TCP treatment does. Translational Relevance: These findings improve understanding of the mechanism of MP-TCP, help explain the increased rates of adverse effects following CW-TCP treatment compared with MP-TCP, and describe effects of MP-TCP at various doses.

Indexed as

Laser CoagulationScleraAdultCicatrixCiliary BodyEpitheliumHumansCW-TCPcyclophotocoagulationhistologyMP-TCP

Identifiers

PMID32821494
PMCPMC7401863
OpenAlexW3022476253

What OpenQuestion holds

Textmetadata
LicenceCC BY-NC-ND
Read underepoch 390

Registered trials

Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.