1/27/2024 0 Comments Lattice degeneration icd10In each case, local status of retinal and choriocapillaris microcirculation was evaluated. 5 A series of OCTA scans was obtained, and those with a scan quality of Q5 or higher were chosen for analysis. Additionally, the head position was adjusted to achieve some head tilt in the direction of the lesion. To perform OCTA examination, patients were asked to look in the direction of the lesion. Three-mm OCTA scans (304 2 × B-scans each of 304 A-scans) centered on the lattice degeneration lesion were obtained in each case. All OCT/OCTA examinations were performed with RTVue-XR Avanti (Optovue, Fremont, CA) running software version 2017.1.0.150. All patients received a comprehensive ophthalmic examination, green reflectance using a confocal scanning laser ophthalmoscopy (F-10, NIDEK, Gamagori, Japan), and OCT/OCTA under medically induced mydriasis. This prospective case series included four patients who were diagnosed with lattice degeneration in our department in 2019–2020 and for whom OCTA examination of the lesion was possible. All participants were informed as to the aim and design of the study and signed informed consent for the use of the data obtained during the ophthalmic examination. The study was conducted in accordance with the Declaration of Helsinki for research involving human subjects and was approved by the local institutional ethics committee. In this paper, using the same approach as for the imaging of peripheral retinal lesions with structural OCT, 5 we describe a series of cases where lattice degeneration lesions were examined with OCTA. Consequently, no cases of OCTA imaging of lattice degeneration have been described so far. However, OCTA is considered an instrument for evaluating the posterior eye pole, and although the OCTA scanning area expands from year to year, it is still limited in visualizing the retinal periphery. Optical coherence tomography angiography (OCTA) has become an essential diagnostic tool in retinal imaging and may improve our understanding of lattice degeneration pathophysiology. 4, 5 More importantly, these studies have shown that the evaluation of peripheral retinal lesions is possible with clinical OCT. OCT has confirmed all histopathological features of lattice degeneration and has been proposed as an additional instrument in determining the need for prophylactic laser treatment for this condition. Optical coherence tomography (OCT) provides an additional insight into retinal and vitreal changes in lattice degeneration. 1, 2, 3 Although lattice degeneration is one of the most frequent findings in otherwise healthy eyes, its cause is not fully understood. 3 Essential signs of lattice degeneration are vitreous liquefaction over a thinned retina and tight vitreoretinal adhesion at the borders of the lesion which contribute to the risk of horseshoe retinal breaks. 2 Most frequently appearing at the equator or more peripherally, lattice degeneration is characterized as an elongated area of retinal thinning crossed by whitish retinal vessels. 1 The prevalence of lattice degeneration is about 6%–10% of the general population and is bilateral in one-third to one-half of all affected individuals. Lattice degeneration is a clinically significant type of peripheral retinal degeneration and is responsible for the occurrence of retinal breaks and rhegmatogenous retinal detachment.
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