[Pathomorphological changes in the photosensitized eye tissues after transscleral laser radiation: experimental...

The authors analyze the pathological changes occurring in the eye tissues after their prephotosensitization and transscleral laser radiation at a wavelength of 810 nm. These changes involve thrombosis of choroidal vessels, destructions of retinal photoreceptors and sclerocytes, and rupture of collagenous fibers of the deep layers of the sclera with its superficial layers being preserved. These changes were recorded just in the direct radiation area. Their magnitude, depth, and extent were directly correlated with the power of radiation and the diameter of a light splash. In the authors' opinion, the studies performed substantiate a transsceral approach for laser radiation in various abnormalities of the chorioretinal complex.