1. Dose 1% or 2% of the compound of formula (I) or one of its pharmaceutically acceptable soleyv which: R is an aromatic ring unsubstituted or substituted by one or more atoms or groups of atoms selected from halogen, alkyl group, C, C-Calkoksilnyh groups, nitro, cyano, trifluoromethyl or trifluoromethoxy groups, R is a hydrogen atom or a linear, branched or cyclic hydrocarbon chain having from 1 to 4 carbon atoms, optionally substituted with a phenyl group, a group CONHi and one or more fluorine atoms, R is a hydrogen atom, a hydroxy group, or forms with Rgruppu -CH = N- or a straight or branched C Salkilenovuyu group, R represents a hydrogen atom or forms with Rgruppu -CH = N- or a straight or branched C -Salkilenovuyu group, R represents a hydrogen atom or C-Calkilnuyu group, R represents a hydrogen or halogen atom, Y represents a C-Salkilenovuyu group, a saturated or unsaturated, linear or branched, optionally rupturable atoms m oxygen between two carbon atoms, to prevent, treat or reduce edema yellow pyatna.2. The dose of claim. 1 to prevent, treat and / or reduce macular edema associated with or caused by diabetic retinopatiey.3. Dose of Claim. 1 or 2, wherein the effective dose of the compound of formula (I) or one of its pharmaceutically acceptable salts, administered to a patient is from 0.004 to 0.03 mg / kg of patient body weight / sutki.4. The dose of claim. 1 for administration once or twice a sutki.5. The dose of claim. 1, characterized in that the compound is coupled1. Доза 1% или 2% соединения формулы (I) или одной из его фармацевтически приемлемых солейв которых:R1 представляет собой ароматическое кольцо, незамещенное или замещенное одним или несколькими атомами или группами атомов, выбранных из галогенов, С1-С3 алкильных групп, C1-C3 алкоксильных групп, нитро-, циано-, трифторметильных или трифторметоксильных групп,R2 представляет собой атом водорода, или неразветвленную, разветвленную или циклическую углеводородную цепь, имеющую от 1 до 4 атомов у
