Ocular fluid ferning test and fractals

Maurizio Battaglia Parodi, Daniele D. Giusto

Research output: Contribution to journalArticlepeer-review


The ferning test can be regarded as a crystallization process obtained by simple water subtraction. Such a process is feasible for every kind of ocular fluid (i.e. tears and aqueous, vitreous and subretinal fluids). The ferning test can be described in terms of fractal geometry, as the image characteristics related to this test are consistent with three of the main properties of fractals: self-similarity, fractal dimension and lacunarity.

Original languageEnglish
Pages (from-to)307-313
Number of pages7
JournalOphthalmic Research
Issue number5
Publication statusPublished - 1993


  • Ferning test
  • Fractal geometry
  • Ocular fluids

ASJC Scopus subject areas

  • Ophthalmology
  • Cellular and Molecular Neuroscience
  • Sensory Systems

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