18 Questions
What is the type of scattering that occurs when shorter wavelengths of light are scattered more than longer wavelengths?
Raleigh Scattering
What is the wavelength limit beyond which light penetration into tissue is severely limited?
1400nm
Which of the following ocular structures has the highest absorption of UV and IR light?
Cornea
What is the type of light that is most absorbed by hemoglobin?
Visible Light
Which of the following types of scattering occurs due to the irregularities in the surface of the tissue?
Mie Scattering
What is the type of light that is most affected by the absorptive properties of nucleic acids and amino acids?
UV-C
What is the primary mechanism of photothermal ablation?
Temperature rise
What is the name of the process where protein chains are denatured due to an increase in temperature?
Photocoagulation
What is the term for the release of toxic products, such as free radicals, caused by photochemical interactions?
Photosensitizers
What is the term for the process of using light to target specific tissue, minimizing damage to surrounding tissue?
Selective photothermolysis
What is the term for the formation of vacuoles in tissue due to temperature rise?
Popcorn effect
What is the term for the type of damage mechanism that involves the absorption of light, leading to mechanical damage?
Photomechanical damage
What is a characteristic of photochemical reactions?
No threshold of energy required
What type of therapy involves photoradiation and photodissociation?
PDT (Photodynamic Therapy)
What is the process by which plasmas can cause tissue disruption?
Ionization followed by plasma growth and tissue disruption
What is a factor that influences the severity of tissue damage in the eye?
All of the above
What is a type of photomechanical damage?
Photodisruption
What is a characteristic of plasma formation?
Multiple ionization and high temperature
This quiz covers the properties and interactions of light, including the electromagnetic spectrum, wavelengths, and types of light. It also explores how light behaves when interacting with matter, including reflection, absorption, transmission, and scattering.
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