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Radiology, Lasers, Nanoparticles and Prosthetics || 13. Laser applications in medicine
摘要： Lasers are nowadays so ubiquitous in our daily life that one might forget how much sophisticated technology is implemented in these devices, which can be as tiny as the tip of a pin. The name LASER is an acronym for Light Amplification by Stimulated Emission of Radiation. Groundbreaking work which led to the invention of lasers was done in the 1950s using microwaves, called accordingly MASER. Masers as well as lasers are based on the principle of population inversion, an idea that Albert Einstein put forward in one of his publications [1]. In 1964 C. H. Townes, N. Basov, and A. Prokhorov shared the Nobel Prize in Physics for their fundamental work, which led to the technical realization of lasers.
关键词： Photothermal interaction,Photomechanical interaction,Photochemical interaction,Medicine,Photoablation,Laser
更新于2025-09-19 17:13:59
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Treatment Outcome of Modified Argon Laser Photoablation for Conjunctival Cysts
摘要： To evaluate the effectiveness of conjunctival cyst removal using a modified method of argon laser photoablation. Seventeen cases of symptomatic conjunctival cysts were included. After staining the surface of a conjunctival cyst with a dark purple marker, the cyst was incised using a 26-gauge needle. Low-energy argon laser photoablation was then applied around the incision site for a mean of 100 times. During a mean follow-up period of 13.3 months (range 6–28 months), all conjunctival cysts were successfully corrected by applying either one or 2 laser sessions. Complete resolution occurred after a single laser session in 14 eyes (82.4%). There were 3 cases of recurrence with medium to large cysts, and repeating the same procedure produced surgical success in all of these cases; the conjunctival cyst recurred again after the second laser session in one of the 3 eyes, but this spontaneously regressed without further treatment. No postoperative complications such as conjunctival scarring or persistent ocular irritation were observed. Our modified method of argon laser photoablation uses staining of the conjunctival cyst surface to increase the amount of thermal laser energy absorbed by the target. This novel technique is simple and effective for treating conjunctival cysts in an outpatient clinic.
关键词： argon laser,conjunctival cyst,photoablation
更新于2025-09-16 10:30:52