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flat large instrument that has a groove and is placed between the lid and globe of the eye to provide a solid support for eyelid surgery Hammer, chisel and bone gouge: bone cutting and shaping Bowmen's discission needle: microsurgery of the lens capsule [3] Knives: to cut structures •Surgical scalpel with small blades: general purpose instrument
Optometer was the generic name for devices, crude and simple, with rotating batteries of sphere and cylinder lenses placed in front of each eye, one at a time; so there was no testing for binocularity. When the optometer and phorometer were combined into single instruments, the modern refractor/phoropter was born.
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Carl Zeiss Meditec AG is a multinational medical technology company and subsidiary of Carl Zeiss AG.It manufactures tools for eye examinations and medical lasers as well as solutions for neurosurgery, dentistry, gynecology and oncology.
Goldmann applanation tonometer is based on the Imbert–Fick principle, which states that for a dry thin-walled sphere, the pressure (P) inside the sphere equals the force (F) necessary to flatten its surface divided by the area (A) of flattening (i.e. P = F/A).
A lensmeter or lensometer (sometimes even known as focimeter or vertometer), [1] [2] is an optical instrument used in ophthalmology. It is mainly used by optometrists and opticians to measure the back or front vertex power of a spectacle lens and verify the correct prescription in a pair of eyeglasses , to properly orient and mark uncut lenses ...