There are multiple definitions:

1. visual hallucination(English)

   • defined as the perception of an object or event in the absence of an external stimulus, are experienced by patients with conditions that span several fields (e.g., psychiatry, neurology, and ophthalmology)
   • CBS, CJD, DLB
   • Psychiatry, Psychology, Ophthalmology, Neurology, Psychosis
   • https://doi.org…88/pcc.08r00673

2. vitreous hemorrhage(English)

   • extravasation of blood into the vitreous body, and occurs when blood leaks from ruptured vessels into the vitreous cavity
   • VA
   • Ophthalmology, Post-traumatic state
   • https://doi.org…/ijo.2017.03.21

3. ventral hernia [repair](English)

   • GOALS, DR, PGY, VR
   • Surgery, Education
   • https://doi.org…urg.2007.06.015

4. vitreous haze(English)

   • OCT, VA, VI
   • Ophthalmology
   • https://doi.org…167/tvst.11.1.3

5. Vickers microhardness(English)

   • HT, KHN, LCU, LED, MAPO, RBC
   • Dentistry, Materials science
   • https://doi.org/10.2341/17-163-L

6. virtual histology(English)

   • ThFCA, ACS, CAD, DS, MLA, MLD, PIT, PR, QCA, STEMI, TCFA, DWS, VH-IVUS
   • Atherosclerosis /atherogenic, Medical imaging, Cell biology
   • https://doi.org…cmg.2012.02.003
   • https://doi.org…64239-4.00015-1

7. villus height(English)

   • see crypt depth
   • ADFI, ADG, ATTD, CCM, CM, DCM, NDF, RCM, SCFA
   • Gastroenterology, Nutrition, Veterinary medicine
   • https://doi.org…093/jas/skac094

8. viral hepatitis(English)

   • ACTA, AIH, ASMA, ELISA, IFL, IgG, PBC
   • Liver disease, Virology
   • https://doi.org…1002/jcla.10040

9. vertical hop(English)

   • as test item to compare trunk, hip, and knee kinematics for various modes of therapy after knee injury
   • ACL, ACLR, ACLPT
   • Sports medicine, Knee, Injury, Prognosis
   • https://doi.org…0167-017-4528-4

10. variceal hemorrhage(English)

    • BOPPP, ACD, NSBB
    • Vascular disease
    • https://doi.org…063-024-08063-3