Selection of optimal energ y parameters for laser coagulation of the retina dosed in automatic mode (experimental study)
Year: 2024
Type: article
Abstract: A prototype of an automated laser system (0,81 μm) was tested with a laser power from 100 to 300 mW using the fundus eye model. We studied the time of formation of coagulates with a brightness from 5 to 70 % of the background level, their homogeneity, and the correspondence of the planned and actual brightness of the coagulates. To obtain coagulates with a brightness of 5–10 % of the background level (grade 1 according to L’Esperance), the most optimal laser power is from 100 to 180 mW: the time of coagulate formation did not exceed 100 ms, brightness variability is less than 7,5 %. Laser power in the range from 200 to 300 mW is optimal when obtaining coagulates with a brightness of 20–40 % and 50–70 % of the background level (grades 2 and 3 according to L’Esperance): the time of coagulate formation in the range of 100–250 ms, brightness variability less than 4 %. The greatest correspondence between the actual and planned brightness of coagulates for the brightness range of 5–70 % of the background level was found at a laser power of 140–180 mW.
Authors: St. Petersburg Branch S. Fyodorov Eye Microsurgery Federal State Institution,, E.V. Boiko, A.A. Suetov, St. Petersburg Branch S. Fyodorov Eye Microsurgery Federal State Institution,, A.S. Izmaylov, St. Petersburg Branch S. Fyodorov Eye Microsurgery Federal State Institution,, T.A. Doktorova, St. Petersburg Branch S. Fyodorov Eye Microsurgery Federal State Institution,, A.A. Ivanov, A.V. Pischelin
Language: English
Subfield: Ophthalmology
Field: Medicine
Domain: Health Sciences
Open Access status: diamond
OpenAlex ID: W4405374579