[Protocol of intravitreal drug delivery. Consensus of the Expert Counsil of Retina and Optic Nerve Diseases of the All-Russian Public Organasation «Association of Ophthalmologists»].

Intravitreal drug administration is a procedure that has become widespread in modern ophthalmology. However, there is no global consensus on certain aspects of this manipulation, and practitioners feel the need for guidelines. In the Russian Federation, until now, such a document was not available.

[Ophthalmologic manifestations of Waardenburg syndrome].

The Waardenburg syndrome is a group of rare genetic diseases, which clinical manifestations include neurosensory hearing loss, diminished pigmentation of forelock in the frontal region, iris heterochromia, medial canthus dystopia, and the presence of such changes in first-line relatives. The article presents a clinical case of type I Waardenburg syndrome, which developed de novo in a family. This case is unique in its combination of complete bilateral iris heterochromia and impaired choroidal pigmentation.