Posterior Segment Laser Procedures 89
Novus Spectra
0642-543-01, Rev A, 12/02
Endophotocoagulation
The preceding retinal procedures are usually done through
the slit lamp delivery system. For intraoperative use, the laser
energy is delivered through an endoprobe via a parsplana
incision in the sclera. The size of the laser burn is controlled
by changing the distance of the probe from the retina.
Because the laser light exiting the probe has a fixed angle of
divergence, the farther the probe is from the target, the larger
the spot on the retina will be. Also, because no lens system is needed to focus
the beam on the target, less power from the laser is needed to produce a
whitening of the retina, which is what the surgeon looks for while
photocoagulating, whether through the slit lamp or through an endoprobe.
This result can usually be obtained with about 200 to 500 mW of power,
depending on the size of the laser spot.
The procedures done with endoprobes include photocoagulation of retinal
detachments and pan-retinal photocoagulation.
Summary of Contents for Novus Spectra
Page 1: ...Novus Spectra Solid State 532 nm Green Laser Operator Manual...
Page 6: ...6 Contents Novus Spectra 0642 543 01 Rev A 12 02...
Page 8: ...Novus Spectra 0642 543 01 Rev A 12 02 8 General Operation...
Page 40: ...Novus Spectra 0642 543 01 Rev A 12 02 40 General Operation...
Page 42: ...Novus Spectra 0642 543 01 Rev A 12 02 42 Maintenance...
Page 56: ...Novus Spectra 0642 543 01 Rev A 12 02 56 Safety and Regulatory...
Page 72: ...Novus Spectra 0642 543 01 Rev A 12 02 72 Indications for Use...
Page 110: ...Novus Spectra 0642 543 01 Rev A 12 02 110 Indications for Use...
