photocoagulation
Laser therapy technique used to treat small ocular tumors through controlled thermal coagulation.
Full Definition
Photocoagulation is a therapeutic technique that uses focused laser energy to create controlled thermal damage to ocular tissues, commonly employed in the treatment of small retinal and choroidal tumors. In ocular oncology, photocoagulation is particularly useful for treating small choroidal melanomas, retinal capillary hemangiomas, and circumscribed choroidal hemangiomas. The procedure typically utilizes argon, krypton, or diode lasers to generate heat that causes protein coagulation and tissue necrosis within the target lesion. Treatment parameters including laser wavelength, power, duration, and spot size must be carefully selected based on tumor characteristics and location. While photocoagulation can achieve local tumor control for appropriately selected lesions, close follow-up is required to monitor treatment response and detect potential recurrence.
Usage
Usage note: Specify laser type, parameters, and treatment extent in procedural documentation.
In Context
- "Argon laser photocoagulation successfully treated the small retinal capillary hemangioma with complete regression at 6 months." — Treatment outcome report
- "The choroidal melanoma was deemed unsuitable for photocoagulation due to proximity to the optic disc." — Treatment planning consultation