Офтальмохирургия (Apr 2019)

Clinical and functional results of YAG-laser vitreolysis in different types of vitreous floaters treatment

  • A. V. Doga,
  • D. A. Buryakov,
  • B. A. Normaev

DOI
https://doi.org/10.25276/0235-4160-2019-1-44-49
Journal volume & issue
Vol. 0, no. 1
pp. 44 – 49

Abstract

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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.

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