RETINAL VESSELS DIGITAL MORPHOMETRY IN ANALYSIS OF LASER TREATMENT RESULTS IN RETINOPATHY OF PREMATURITY

Abstract

Purpose. Quantification of morphometric parameters of segments of retinal vessels of the central fundus zone, vessels of the 2nd order and peripheral vessels in the vicinity of the avascular zone to detect early signs and dynamics of stage II and III regression in retinopathy of prematurity (ROP) in different periods after laser treatment (LT).Material and methods. There were examined 50 preterm infants (100 eyes) with the type 2 (a high risk of progression) of the ROP stage II and III before and in different periods after pattern laser photocoagulation. The morphometric analysis of obtained digital images of the retina in children with ROP was performed using the retinal camera «RetCam 3» (Clarity Medisal Systems, Inc.,USA) in mode of the software «ROP-MORRNOMETRY».Results. Statistically significant differences in the diameter of retinal vessels throughout their length and the tortuosity factor of arteries in the central fundus zone in the follow-up of 1 and 2 months after laser treatment were not revealed, indicating a robust ROP regression.Conclusions. Clinical applications of data obtained in the performed study allows to optimize the postoperative monitoring of premature infants with ROP, minimizing the quantity of repeated diagnostic tests.

Keywords

• retinopathy of prematurity
• laser treatment
• morphometry of retinal vessels