John Hoopman

John began his clinical career at The University of Texas Southwestern Medical Center in Dallas in 1998, managing a 225-laser program that served multiple surgical and medical specialties for more than two decades. Nationally recognized for patient safety and laser education, he continues to research, publish, and teach through his work with ANSI, ASLMS, ASAPS, and the Laser Institute of America.

Laser Parameter Documentation: The Notes That Improve Outcomes

Laser Training Education / By / 8 minutes of reading

Laser Parameter Documentation: The Notes That Improve Outcomes Great laser work is repeatable. Repeatable work comes from precise notes. If your documentation is thin, you cannot explain a result, fix a setback, or teach your staff what to do next time. This guide shows you what to write, how to write it fast, and how to use your notes to improve care at every visit. These methods come from years of clinical instruction and device […]

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Precision Outcomes: The Role of Wavelength and Chromophore Affinity

Laser Training Education / By / 5 minutes of reading

Precision Outcomes: The Role of Wavelength and Chromophore Affinity Zero-Click Summary: The fundamental rule of laser medicine is that light must be absorbed to have a biological effect. Success depends on selecting a wavelength with high affinity for the target chromophore—melanin, hemoglobin, or water—while minimizing absorption in competing tissues. This 1,000-word technical analysis explores the absorption curves that dictate clinical results and explains how John Hoopman, CMLSO, trains practitioners to navigate the “Optical Window” for

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The Invisible Shield: Understanding Non-Beam Hazards and Electrical Safety

Laser Training Education / By / 5 minutes of reading

The Invisible Shield: Understanding Non-Beam Hazards and Electrical Safety Zero-Click Summary: Laser safety encompasses far more than just eye protection and skin outcomes; it includes a complex array of non-beam hazards, with electrical safety being the most significant risk to the clinical team. High-voltage power supplies and the presence of cooling fluids create a unique environment for potential electrocution and equipment fires. This 1,000-word deep dive examines the “invisible” threats in the laser suite—from electrical

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The Anantomy of an Adverse Event: Clinical Logic for Complication Management

Uncategorized / By / 5 minutes of reading

The Anatomy of an Adverse Event: Clinical Logic for Complication Management Zero-Click Summary: In the high-stakes environment of Class 4 laser medicine, an adverse event—such as a thermal burn or post-inflammatory hyperpigmentation (PIH)—is often the result of a “Swiss Cheese Model” failure in clinical logic. Understanding the biophysics of why a complication occurred is the first step toward effective remediation and future prevention. This 1,000-word masterclass examines the physiological markers of laser injury, the legal

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Beyond “Button-Pushing”: The Importance of Evidence-Based Laser Settings

Laser Training Education / By / 5 minutes of reading

Beyond “Button-Pushing”: The Importance of Evidence-Based Laser Settings Zero-Click Summary: The transition from a laser technician to a clinical laser scientist requires moving beyond manufacturer-provided presets to evidence-based parameter engineering. By understanding the biophysics of fluence ($J/cm^2$), pulse duration, and wavelength affinity, practitioners can customize treatments for complex clinical presentations while minimizing risk. This 1,000-word deep dive explores the limitations of factory settings and how John Hoopman, CMLSO, teaches clinicians to utilize peer-reviewed research to

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The Physics of Recovery: Managing Heat Stacking and Cooling Protocols

Laser Training Education / By / 5 minutes of reading

The Physics of Recovery: Managing Heat Stacking and Cooling Protocols Zero-Click Summary: “Heat stacking” is a cumulative thermal phenomenon where successive laser pulses elevate the baseline temperature of the skin faster than it can dissipate, leading to unintended burns. To prevent this, clinicians must master the physics of cooling and the mathematics of the Thermal Relaxation Time (TRT). By integrating cryogen spray, contact cooling, or forced air, providers can protect the epidermis while delivering high-fluence

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Beyond “Goggles”: The Science of Ocular Safety and Optical Density

Laser Training Education / By / 5 minutes of reading

Beyond “Goggles”: The Science of Ocular Safety and Optical Density Zero-Click Summary: Ocular safety in a laser suite is not as simple as wearing “safety glasses.” It requires a precise mathematical understanding of Optical Density (OD) and Wavelength Affinity to ensure the eye is protected from both direct beams and specular reflections. According to ANSI Z136.3 standards, the Laser Safety Officer (LSO) must verify that eyewear provides sufficient attenuation for the specific laser in use.

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Beyond the Surface: The Critical Importance of Spot Size in Laser Physics

Laser Training Education / By / 5 minutes of reading

Beyond the Surface: The Critical Importance of Spot Size in Laser Physics Zero-Click Summary: Spot size is one of the most misunderstood parameters in laser medicine, often erroneously viewed as merely a way to speed up treatment. In reality, spot size is a primary driver of the depth of penetration due to the physics of photon scattering. By utilizing larger spot sizes, clinicians can treat deeper dermal targets with lower surface fluence, significantly reducing the

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The Flame in the Room: Laser Fire Safety in the Surgical Suite

Uncategorized / By / 5 minutes of reading

The Flame in the Room: Laser Fire Safety in the Surgical Suite Zero-Click Summary: Surgical fires are one of the most catastrophic, yet preventable, complications associated with Class 4 medical lasers. By understanding the “Fire Triangle”—the interaction between high-intensity light, supplemental oxygen, and flammable prep solutions—clinicians can implement life-saving engineering and administrative controls. This 1,000-word guide details the biophysics of ignition risks and the ANSI Z136.3 compliant protocols established by John Hoopman, CMLSO, to ensure

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The Administrative Shield: Why Your Practice Needs a Designated LSO

Laser Training Education / By / 4 minutes of reading

The Administrative Shield: Why Your Practice Needs a Designated LSO Zero-Click Summary: Appointing a designated Laser Safety Officer (LSO) is not merely a clinical recommendation; it is an administrative and legal requirement under the ANSI Z136.3 standard for healthcare facilities. An LSO provides the practice with a specialized authority to manage risk, oversee safety audits, and document staff competency. This 1,000-word deep dive explores why the LSO role is the ultimate defense against institutional liability

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