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Valentin Aranha dos Santos
Dr. techn. Ir. Valentin Aranha dos Santos

Center for Medical Physics and Biomedical Engineering
Position: Research Associate (Postdoc)

T +43 1 40400 39219


Choroid; Cornea; Dry Eye Syndromes; Elasticity Imaging Techniques; Image Processing, Computer-Assisted; Optical Devices; Optics and Photonics; Pulsatile Flow; Tomography, Optical Coherence

Research interests

In Opthalmology:

  • Tear film dynamics
  • Elastography
  • Ocular fundus pulsation
  • Optophysiology

Techniques, methods & infrastructure

  • Optical Coherence Tomography
  • Optical Coherence Elastography

Selected publications

  1. Aranha dos Santos, V. et al., 2015. In vivo tear film thickness measurement and tear film dynamics visualization using spectral domain optical coherence tomography. Optics Express, 23(16), p.21043. Available at:
  2. Aranha dos Santos, V. et al., 2016. Super-resolved thickness maps of thin film phantoms and in vivo visualization of tear film lipid layer using OCT. Biomed. Opt. Express, 7(7), p.2650. Available at:
  3. Bata, A.M. et al., 2016. Effect of a Matrix Therapy Agent on Corneal Epithelial Healing After Standard Collagen Cross-linking in Patients With Keratoconus. JAMA Ophthalmology. Available at:
  4. Kaya, S. et al., 2015. Effect of hyaluronic acid on tear film thickness as assessed with ultra-high resolution optical coherence tomography. Acta Ophthalmol, 93(5), pp.439-443. Available at:
  5. Schmidl, D. et al., 2015. Tear Film Thickness After Treatment With Artificial Tears in Patients With Moderate Dry Eye Disease. Cornea, 34(4), pp.421-426. Available at: