Клинико-функциональные результаты YAG-лазерного витреолизиса различных типов помутнений стекловидного тела

[摘要] Purpose. To evaluate clinical and functional results of YAG-laser vitreolysis in different types of vitreous floaters treatment.Material and methods. The study included 98 patients (98 eyes). Two groups were formed: the main group - patients with YAG-laser vitreolysis (67 eyes) and the control group - monitoring patients with the natural process course (31 eyes). Patients of the main group were divided into 3 subgroups: I. Weiss Ring (or its fragments) - 24 eyes, II. Cloud opacities - 22 eyes, III. Solid conglomerates - 21 eyes. All subjects underwent standard ophthalmological examinations completed with measurement of contrast sensitivity (CS), subjective perceptions (SP) and quantitative ultrasound assessment - mean gray value (MGV) - using the computer program ImageJ. Laser treatment was performed using the «Ultra Q Reflex» with pulse energy 1-9 mJ. Follow­up: at the baseline, 1 week, 1,3, 6, 12 months after treatment.Results .There was a statistically significant CS and SP improvement at 1 week, 1, 3, 6, 12-month follow-up in the main group (p<0.05), compared with the control group which showed no significant change (p>0.05). A comparative analysis of clinical and functional outcomes in subgroup I revealed a significant increase of CS (p<0.05) and a positive trend in subgroups II and III (p>0.05). Mean SP, MGV in the subgroups I and II significantly improved (p<0.05) compared to the subgroup III (p>0,05) at the 1-week follow-up after surgery and remained stable at the 12-month follow-up. Conclusions. YAG laser vitreolysis is an effective treatment technique of vitreous floaters. The initial type of vitreous floaters determines the tactics and outcomes of laser treatment.

[学科分类] 眼科学

[关键词] YAG laser vitreolysis;vitreous floaters;contrast sensitivity;questionnaire;mean gray value;YAG-лазерный витреолизис;помутнения сте¬кловидного тела;контрастная чувствительность;анкетирование;усредненное значение серого