Microscopic perspective refers to any perspective image/view of a spatial scene/object in which the visible field or objects observed/depicted are so small as to be effectively invisible to the (unaided) human eye. Probably refers to objects smaller than 0.05 mm.
A light microscope uses visible light and lenses to magnify small objects.
Compound Microscope
A compound microscope uses multiple lenses to magnify an image of a sample. It’s the most common type of microscope used for general purposes.
Principles
- A specimen is placed on the stage, which is positioned directly below the objective lens.
- A light source illuminates the specimen.
- The objective lens spreads out the light to make the image appear larger.
- The image is further magnified by additional lenses inside the optical path.
- The overall magnification is given by multiplying the magnification of the objective lens by that of the eyepiece lens.
Applications
- Biological: Used to observe cells, tissues, and other biological specimens
- Metallurgical: Used to inspect cross-sections of metal targets for defects
- Phase contrast imaging: Used to enhance contrast for easier viewing of colourless and transparent specimens
Parts
- Objective lens: lens closest to the sample, has a short focal length
- Eyepiece lens: lens in the eyepiece, has a longer focal length
- Condenser lens: Focuses light directly into the sample
- Iris diaphragm: Regulates how light hits the sample
Micro and Keyhole Surgery
Micro laparoscopic surgery is a type of keyhole surgery that uses small incisions and specialised instruments to perform surgery.
Characteristics
- Keyhole surgery: Uses small incisions and a fine tube with a light on the end.
- Laparoscopic surgery: A type of keyhole surgery that’s performed inside the abdomen.
- Microsurgery: A surgical procedure that uses magnifying devices and small instruments to
operate on tiny structures. - Micro laparoscopic surgery: A minimally invasive surgical technique that uses smaller incisions and specialised instruments to perform surgery.
Benefits
- Micro laparoscopic surgery can reduce surgical trauma to the body.
- It can reduce pain and bleeding.
- It can result in smaller, less visible scars.
- It can lead to shorter hospital stays and faster recovery.
Applications
- Micro laparoscopic surgery can be used to remove damaged or diseased organs.
- It can be used to perform biopsies.
- It can be used to treat unexplained pelvic or abdominal pain.
- It can be used to treat conditions like Crohn’s disease, ulcerative colitis, diverticulitis, rectal
prolapse, and severe constipation.
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