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Related Concept Videos

Contemporary Psychology01:29

Contemporary Psychology

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Psychology explores human behavior and mental processes through various lenses, each offering unique insights. This overview examines key subfields, including biopsychology, evolutionary, developmental, personality, and social psychology, highlighting their approaches and contributions to understanding complex human behaviors.
Biopsychology
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Light Acquisition02:16

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In order to produce glucose, plants need to capture sufficient light energy. Many modern plants have evolved leaves specialized for light acquisition. Leaves can be only millimeters in width or tens of meters wide, depending on the environment. Due to competition for sunlight, evolution has driven the evolution of increasingly larger leaves and taller plants, to avoid shading by their neighbors with contaminant elaboration of root architecture and mechanisms to transport water and nutrients.
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Light as Energy01:35

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The energy required to carry out photosynthesis is light— typically electromagnetic radiation from the sun. The range of all possible wavelengths is known as the electromagnetic spectrum.
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The Wave Nature of Light02:12

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The nature of light has been a subject of inquiry since antiquity. In the seventeenth century, Isaac Newton performed experiments with lenses and prisms and was able to demonstrate that white light consists of the individual colors of the rainbow combined together. Newton explained his optics findings in terms of a "corpuscular" view of light, in which light was composed of streams of extremely tiny particles traveling at high speeds according to Newton's laws of motion.
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Photoreceptors and Plant Responses to Light02:00

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Light plays a significant role in regulating the growth and development of plants. In addition to providing energy for photosynthesis, light provides other important cues to regulate a range of developmental and physiological responses in plants.
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Light rays enter the eye through the cornea, a transparent dome-shaped tissue that is the eye's outermost layer. The cornea bends or refracts, light rays traveling to the pupil. The shape of the cornea determines how much of the light is bent and whether the image will be focused correctly on the retina at the back of the eye. Once the light has passed through both refraction layers, it converges into a single focal point onto a small area. This is where photoreceptors start transforming...
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Author Spotlight: Advancing Facial Rejuvenation Therapy with Post-Laser Salicylic Acid Application
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Contemporary Laser and Light-Based Rejuvenation Techniques.

Mark Hamilton1, Andrew Campbell2, J David Holcomb3

  • 1Hamilton Facial Plastic Surgery, 533 East County Line Road, Suite #104, Greenwood, IN 46143, USA.

Facial Plastic Surgery Clinics of North America
|April 12, 2018
PubMed
Summary
This summary is machine-generated.

Laser skin rejuvenation has advanced significantly. Fractional devices offer alternatives to ablative resurfacing for less downtime, while intense pulsed light can achieve similar results to newer hybrid technologies.

Keywords:
AblativeCO(2) laserErbium:YAG laserFractional laser resurfacingHybrid fractionalLaser resurfacingPhotoagingRhytids

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Area of Science:

  • Dermatology
  • Aesthetic Medicine
  • Laser Technology

Background:

  • Laser and light skin rejuvenation has evolved over the past decade.
  • Advancements include fractional, nonablative, and combination devices alongside traditional CO2 and erbium:YAG lasers.

Purpose of the Study:

  • To review the advancements in laser and light skin rejuvenation techniques.
  • To compare the efficacy and applications of different laser modalities.

Main Methods:

  • Review of current literature on laser and light skin rejuvenation.
  • Comparison of ablative, nonablative, and fractional laser technologies.
  • Evaluation of intense pulsed light (IPL) as an alternative.

Main Results:

  • Full-field ablative laser resurfacing is optimal for lighter skin types with severe photodamage and rhytids.
  • Fractional devices provide an alternative with reduced downtime, potentially requiring multiple sessions.
  • Newer hybrid and nonablative devices show promise, but similar outcomes can be achieved with intense pulsed light.

Conclusions:

  • Fractional laser treatments offer a viable option for patients seeking less downtime.
  • Intense pulsed light remains a cost-effective and effective treatment for various skin rejuvenation concerns.
  • Treatment choice depends on skin type, severity of photodamage, and patient preference for downtime.