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Vitamins, derived from the Latin word for life, are essential organic substances required in small quantities for optimal growth and overall well-being. Unlike other organic nutrients, vitamins don't act as sources of energy or building materials but rather facilitate these nutrients' utilization by the body. Vitamins are predominantly coenzymes, assisting enzymes in specific chemical actions, like the oxidation of glucose for energy involving B vitamins. Most vitamins are not produced...
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Optical perception, or vision, is an extraordinary sense dependent on converting light signals received via the ocular organs. These organs, known as eyes, are securely positioned within the bony cavities of the skull, called orbits. The orbits serve a dual purpose: a protective shield for the ocular globes and a stable attachment point for the soft ocular tissues. The eye's external protective mechanisms include the eyelids, which are edged with lashes that act as a barrier against foreign...
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The growth and maintenance of bone are regulated by a combination of nutritional factors, including vitamins, such as vitamin A, B12, C, D, and K.
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At the molecular level, visual signals trigger transformations in photopigment molecules, resulting in changes in the photoreceptor cell's membrane potential. The photon's energy level is denoted by its wavelength, with each specific wavelength of visible light associated with a distinct color. The spectral range of visible light, classified as electromagnetic radiation, spans from 380 to 720 nm. Electromagnetic radiation wavelengths exceeding 720 nm fall under the infrared category,...
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The human eye has a specialized microbiota that reflects its unique anatomical and immunological environment. This low-biomass microbial community predominantly colonizes the conjunctiva and eyelid margins, playing a vital role in ocular surface homeostasis and defense. Despite its proximity to the richly colonized facial skin, the ocular surface maintains a distinct microbial profile due to continuous mechanical and biochemical defense mechanisms.The conjunctival surface hosts fewer microbial...
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Glaucoma is an eye condition characterized by increased intraocular pressure that damages the retina and optic nerve, leading to irreversible blindness if left untreated. The human eye has various components, including the cornea, iris, pupil, lens, and optic nerve. Aqueous humor is secreted by the epithelium of the ciliary body in the posterior chamber and flows through the trabecular meshwork and canal of Schlemm, maintaining normal intraocular pressure. The trabecular meshwork and the canal...
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Updated: Mar 19, 2026

Author Spotlight: Investigating Physiological Functions of Vitamin A Transporters Using HPLC-Based Vitamin A Profiling
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B Vitamins and Ocular Health.

Elizabeth J Johnson1, Julie Poteet2, Neda Gioia3

  • 1Friedman School of Nutrition Science and Policy, Tufts University, Boston, MA, USA.

Clinical Ophthalmology (Auckland, N.Z.)
|March 18, 2026
PubMed
Summary
This summary is machine-generated.

B vitamins are crucial for eye health. Emerging research links B vitamin supplementation to improved outcomes for age-related eye diseases and vision loss.

Keywords:
age-related macular degenerationcataractdiabetic retinopathydry eye diseaseglaucomasupplementation

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Area of Science:

  • Nutrition Science
  • Ophthalmology
  • Biochemistry

Background:

  • B vitamins are essential for metabolic pathways and cellular functions.
  • Traditionally, B vitamins were not prioritized for eye health supplements.
  • New evidence suggests a potential role in preventing vision loss.

Purpose of the Study:

  • To review the role of B vitamins in maintaining eye health.
  • To explore the link between B vitamins and various eye diseases.
  • To discuss clinical considerations for B vitamin supplementation.

Main Methods:

  • Literature review of pathogenic mechanisms in eye diseases.
  • Analysis of observational studies on B vitamins and eye disease risk.
  • Synthesis of preclinical and clinical evidence for B vitamin supplementation.

Main Results:

  • Understanding of eye disease mechanisms is advancing.
  • Observational studies suggest a connection between B vitamins and eye disease.
  • Preclinical and clinical data support B vitamin benefits for ocular health.

Conclusions:

  • B vitamins play a significant role in eye structure and function.
  • Specific B vitamins are linked to various ocular conditions.
  • Supplementation with B vitamins may offer therapeutic benefits for eye health.