Exploring the Dynamics of Eye Fluid: Lymphatics, Aqueous Humor, and Intraocular Pressure

Year : 2025 | Volume : 02 | Issue : 02 | Page : 31 44
    By

    Maya Sharma,

  1. Associate Professor, Faculty of Pharmacy, Pacific Academy of Higher Education and Research University, Udaipur-313024, India

Abstract

Lymphatic vessels are essential for regulating interstitial fluid balance, facilitating immune cell transport, supporting lipid absorption, and playing significant roles in tumor development and metastasis. Recent findings have expanded their recognized functions, particularly in pathological contexts. One notable discovery is the involvement of lymphatics in draining aqueous humor from the eye, a process closely linked to the regulation of intraocular pressure (IOP) and its implications for glaucoma progression. This review provides an overview of the dynamics of ocular fluids, examines the distribution and structure of ocular lymphatics, and highlights studies that have advanced the three-dimensional visualization of the ocular vasculature. Additionally, it explores the molecular mechanisms governing the development of ocular lymphatic vessels and investigates how lymphatic pathways may influence aqueous humor outflow. The interaction between lymphatic and glymphatic systems is also discussed, particularly in relation to retinal clearance and diseases affecting the posterior eye. The review concludes by addressing unresolved questions and suggesting research directions to further elucidate the interplay between these systems in maintaining ocular fluid homeostasis.

Keywords: Lymphatic vessels, lymphatic system, aqueous humor drainage, intraocular pressure, eye disease, glaucoma.

[This article belongs to Emerging Trends in Personalized Medicines ]

How to cite this article:
Maya Sharma. Exploring the Dynamics of Eye Fluid: Lymphatics, Aqueous Humor, and Intraocular Pressure. Emerging Trends in Personalized Medicines. 2025; 02(02):31-44.
How to cite this URL:
Maya Sharma. Exploring the Dynamics of Eye Fluid: Lymphatics, Aqueous Humor, and Intraocular Pressure. Emerging Trends in Personalized Medicines. 2025; 02(02):31-44. Available from: https://journals.stmjournals.com/etpm/article=2025/view=208669


References

  1. Goldmann Applanation Tonometry. Multiparameter Correction Equation. 2011;88(1):102–12.
  2. Boyer G, Pailler-Mattei C, Molimard J, Pericoi M, Laquieze S, Zahouani H. Non contact method for in vivo assessment of skin mechanical properties for assessing effect of ageing. Med Eng Phys. 2012;34(2):172–8.
  3. Fleury V, Al-Kilani A, Boryskina OP, Cornelissen AJM, Nguyen TH, Unbekandt M, et al. Introducing the scanning air puff tonometer for biological studies. Phys Rev E. 2010;81(2):021920.
  4. Kling S, Marcos S. Finite-Element Modeling of Intrastromal Ring Segment Implantation into a Hyperelastic Cornea. 2013;54(1):881–9.
  5. Wang S, Li J, Manapuram RK, Menodiado FM, Davis R, Twa MD, et al. HHS Public Access. 2015;37(24):5184–6.
  6. Lee YS, Owens CM, Meullenet JF. A Novel Laser Air Puff and Shape Profile Method for Predicting Tenderness of Broiler Breast Meat. 2005.
  7. Swan L. Origin(s) of Design in Nature.
  8. Valero C, Homer I. Non-destructive fruit firmness sensors: a review. 2005;3:61–73.
  9. Jequier E, Constant F. Water as an essential nutrient: the physiological basis of hydration. Eur J Clin Nutr. 2010;64:115–23.
  10. Manz F. Hydration and disease. J Am Coll Nutr. 2007;26:535S–41S.
  11. Stookey JD, Brass B, Holliday A, Arieff A. What is the cell hydration status of healthy children in the USA? Preliminary data on urine osmolality and water intake. Public Health Nutr. 2012;15:2148–56.
  12. Bonnet F, Lepicard EM, Cathrin L, et al. French children start their school day with a hydration deficit. Ann Nutr Metab. 2012;60:257–63.
  13. Fadda R, Rapinett G, Grathwohl D, et al. Effects of drinking supplementary water at school on cognitive performance in children. Appetite. 2012;59:730–7.
  14. McCauley LR, Dyer AJ, Stern K, Hicks T, Nguyen MM. Factors influencing fluid intake behavior among kidney stone formers. J Urol. 2012;187:1282–6.
  15. Fischbarg J. Water channels and their roles in some ocular tissues. Mol Aspects Med. 2012;33:638–41.
  16. To C-H, Kong C-W, Chan C-Y, Shahidullah M, Do C-W. The mechanism of aqueous humour formation. Clin Exp Optom. 2002;85:335–49.
  17. Kiel J, Hollingsworth M, Rao R, Chen M, Reitsamer HC. Ciliary blood flow and aqueous humor production. Prog Retin Eye Res. 2011;30:1–17.
  18. Sacco R, Guidoboni G, Jerome JW, Bonifazi G, Marazzi NM, Vercellin ACV, et al. A theoretical approach for the electrochemical characterization of ciliary epithelium. Life. 2020;10:8.
  19. Monteiro JP, Santos FM, Rocha AS, Castro-De-Sousa JP, Queiroz JA, Passarinha LA, et al. Vitreous humor in the pathologic scope: Insights from proteomic approaches. Proteomics Clin Appl. 2014;9:187–202.
  20. Nawaz M, Rezzola S, Cancarini A, Russo A, Costagliola C, Semeraro F, et al. Human vitreous in proliferative diabetic retinopathy: Characterization and translational implications. Prog Retin Eye Res. 2019;72:100756.
  21. Wang Q, Thau A, Levin AV, Lee D. Ocular hypotony: A comprehensive review. Surv Ophthalmol. 2019;64:619–38.
  22. Wang Q, Thau A, Levin AV, Lee D. Ocular hypotony: A comprehensive review. Surv Ophthalmol. 2019;64:619–38.
  23. Johnson M, McLaren JW, Overby D. Unconventional aqueous humor outflow: A review. Exp Eye Res. 2017;158:94–111.
  24. Smith DW, Lee C-J, Gardiner BS. No flow through the vitreous humor: How strong is the evidence? Prog Retin Eye Res. 2020;78:100845.
  25. Riva CE, Alm A, Pournaras CJ. Ocular circulation. In: Kaufman PL, Alm A, editors. Ocular Circulation. 11th ed. New York: Saunders Elsevier; 2011. p. 243–73.
  26. Foster C, de la Maza M. The Sclera. New York: Springer-Verlag; 1994.
  27. Krause U, Raunio V. Proteins of the normal human aqueous humour. Ophthalmologica. 1969;159:178–85.
  28. DiMattio J. Active transport of ascorbic acid into lens epithelium of the rat. Exp Eye Res. 1989;49:873–85.
  29. Lightman SL, Palestine AG, Rapoport SI, Rechthand E. Quantitative assessment of the permeability of the rat blood-retinal barrier to small water-soluble nonelectrolytes. J Physiol. 1987;389:483.
  30. Stamer WD, Snyder RW, Smith BL, Agre P, Regan JW. Localization of aquaporin CHIP in the human eye: implications in the pathogenesis of glaucoma and other disorders of ocular fluid balance. Invest Ophthalmol Vis Sci. 1994;35:3867–72.
  31. Sebag J. Age-related changes in human vitreous structure. Graefes Arch Clin Exp Ophthalmol. 1987;225:89–93.
  32. Lund-Andersen H, Sander B. The Vitreous. In: Kaufman PL, Alm A, editors. The Vitreous. 11th ed. New York: Saunders Elsevier; 2011. p. 164–81.
  33. McNeil AR, Gardner A, Stables S. Simple method for improving the precision of electrolyte measurements in vitreous humor. Clin Chem. 1999;45:135–6.
  34. Reddy DV, Kinsey VE. Composition of the vitreous humor in relation to that of plasma and aqueous humors. Arch Ophthalmol. 1960;63:715–20.
  35. Fatt I. Flow and diffusion in the vitreous body of the eye. Bull Math Biol. 1975;37:85–90.
  36. Duncan LS Jr, Ellis PP, Paterson CA. Effect of hyperosmotic agents on vitreous osmolality. Exp Eye Res. 1970;10:129–32.
  37. Oster JR, Singer I. Hyponatremia, hyposmolality, and hypotonicity: tables and fables. Arch Intern Med. 1999;159:333–6.
  38. Galin MA, Aizawa F, Mc LJ. Urea as an osmotic ocular hypotensive agent in glaucoma. Arch Ophthalmol. 1959;62:347–52.
  39. Nakao S, Hafezi-Moghadam A, Ishibashi T. Lymphatics and Lymphangiogenesis in the Eye. J Ophthalmol. 2012;2012:783163.
  40. Danser AH, Derkx FH, Admiraal PJ, Deinum J, de Jong PT, Schalekamp MA. Angiotensin levels in the eye. Invest Ophthalmol Vis Sci. 1994;35:1008–18.
Regular Issue Subscription Review Article
Volume 02
Issue 02
Received 04/11/2024
Accepted 19/04/2025
Published 23/04/2025
Publication Time 170 Days
287

Login


My IP

PlumX Metrics