Medical Physics
The Electromagnetic Spectrum in Medical Science: From Vision to Diagnostics
The electromagnetic spectrum represents the complete range of electromagnetic radiation, encompassing everything from high-energy gamma rays to low-frequency radio waves. In the field of medicine, understanding this spectrum is fundamental, as different frequencies interact with human biology in unique ways—enabling sight, allowing for diagnostic imaging like X-rays, and facilitating advanced treatments such as radiation therapy.
The Science of Ophthalmic Optics: How Prisms, Convex, and Concave Lenses Correct Vision
Vision is a complex physiological process that relies heavily on the physics of light manipulation. Before an image can be processed by the brain, light rays must be precisely bent and focused onto the retina. This article explores the fundamental principles of optical physics—specifically the behavior of prisms, convex lenses, and concave lenses—and explains how these concepts are applied in medical optometry to correct common visual impairments.
The Physics of Vision: Understanding Refraction and Light in Ophthalmology
Light is the fundamental stimulus for the human visual system, and the way it interacts with different materials dictates how well we see the world around us. In the field of medical optics and ophthalmology, understanding the behavior of light rays—specifically how they bend and bounce when meeting various tissues—is essential for diagnosing and treating vision problems. This article explores the core physical principles of reflection and refraction illustrated in the diagram above and connects them to the anatomy and physiology of the human eye.
Understanding Wave Properties: Amplitude, Wavelength, and Frequency in Medical Physics
Fundamental physics concepts regarding wave mechanics are essential for understanding how the human body interacts with its environment, particularly in the fields of sensory physiology and diagnostic imaging. Whether discussing the light waves that stimulate the retina or the sound waves used in ultrasound technology, the core properties of amplitude, wavelength, and frequency define how energy propagates through space and biological tissues. This visual guide illustrates the basic anatomy of a wave, distinguishing between the physical dimensions of the wave itself and the rate at which these cycles occur over time.
