Laser Applications InOculoplastic Surgeries
Noha Mamdouh Mohamed Ismaeel;
Abstract
Laser is just a light which has specific properties, giving it its high power and specific uses. The usefulness of laser light in medicine stems from its high intensity and coherence that is derived from its unique combination of monochromacity, directionality, and brightness.
A laser usually comprises an optical resonator in which light can circulate, and within this resonator a gain medium which serves to amplify the light. The gain medium requires some external supply of energy to be pumped.
Laser-tissue interactions terms are used to describe the mechanism of action when lasers are directed at target tissue. It may be thermomechanical, photoablative, photothermal, or photochemical.
Lasers can be classified to different groups according to different criteria such as: state of gain medium, wavelength of laser light, pumping method, characters of the emitted radiation.
Using laser requires meticulous safety precautions for the patient and medical team to avoid the harm which could result from unintended exposure to laser.
The use of laser technology for incisional surgery, skin resurfacing and other applications is rapidly advancing area within oculoplastic surgery.
The benefits of using laser rather than the cold steel scalpel in oculoplasty are reduced operative time, less bleeding, superior intraoperative visibility, less bruising, no pain or discomfort and shorter recovery time.
The disadvantages of using the laser compared with the cold steel scalpel include the cost of purchasing and maintaining the laser equipment, the need for additional and extensive laser training for surgeons and assistants, and the need for two assistants rather than the one needed for scalpel surgery.
Laser dacryocystoplasty is used in canalicular stenosis, high or deep intrasaccal lesions. The Er:YAG laser works either photoablatively or by a cavitation blister.
Laser used in DCR would allow delivery via flexible optic fibers, achieve effective bone ablation and provide good hemostasis with a relatively shallow depth of penetration; therefore, the potassium titanyl phosphate (KTP/532), diode, and holmium:yttrium aluminium garnet (Ho:YAG) are suitable.
A laser usually comprises an optical resonator in which light can circulate, and within this resonator a gain medium which serves to amplify the light. The gain medium requires some external supply of energy to be pumped.
Laser-tissue interactions terms are used to describe the mechanism of action when lasers are directed at target tissue. It may be thermomechanical, photoablative, photothermal, or photochemical.
Lasers can be classified to different groups according to different criteria such as: state of gain medium, wavelength of laser light, pumping method, characters of the emitted radiation.
Using laser requires meticulous safety precautions for the patient and medical team to avoid the harm which could result from unintended exposure to laser.
The use of laser technology for incisional surgery, skin resurfacing and other applications is rapidly advancing area within oculoplastic surgery.
The benefits of using laser rather than the cold steel scalpel in oculoplasty are reduced operative time, less bleeding, superior intraoperative visibility, less bruising, no pain or discomfort and shorter recovery time.
The disadvantages of using the laser compared with the cold steel scalpel include the cost of purchasing and maintaining the laser equipment, the need for additional and extensive laser training for surgeons and assistants, and the need for two assistants rather than the one needed for scalpel surgery.
Laser dacryocystoplasty is used in canalicular stenosis, high or deep intrasaccal lesions. The Er:YAG laser works either photoablatively or by a cavitation blister.
Laser used in DCR would allow delivery via flexible optic fibers, achieve effective bone ablation and provide good hemostasis with a relatively shallow depth of penetration; therefore, the potassium titanyl phosphate (KTP/532), diode, and holmium:yttrium aluminium garnet (Ho:YAG) are suitable.
Other data
| Title | Laser Applications InOculoplastic Surgeries | Other Titles | استخدام الليزر فى جراحات العين التكميلية | Authors | Noha Mamdouh Mohamed Ismaeel | Issue Date | 2015 |
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