Modern Eye Care: The Gut-Eye Axis, Oculomics, HRT & More

In this episode, Dr. Kate Kresge takes a fast-moving tour of integrative eye care with Dr. Neda Gioia, OD, CNS, IFMCP, founder of Integrative Vision. Dr. Gioia connects the dots between microbiome-driven inflammation, AI-powered retinal imaging, and the hormonal transitions that reshape ocular physiology in midlife. She explains how gut permeability may parallel ocular surface symptoms, how retinal microvascular mapping can hint at systemic health, and why perimenopause and menopause deserve more attention in the eye exam. (Song 2024) (Wagner 2020) (Zhu 2026) Clinicians will leave with practical frameworks for combining gut, hormone, nutrient, and imaging data into prevention-focused vision care.

3 Key Takeaways

• The eyes are hormone-responsive tissue. Sex-hormone receptors in the lacrimal and meibomian glands help explain midlife dry eye, and in one study of perimenopausal women, those using hormone therapy showed benefits for dry eye as well as perimenopausal symptoms. (Zhu 2026) (Jin 2016)
• Nutrients support the macula. AREDS2 found lutein and zeaxanthin to be an appropriate replacement for beta carotene in the AREDS formula, given beta carotene's link to lung cancer in former smokers. (AREDS2 Research Group 2013)
• The retina is a window to whole-body health. Dr. Gioia describes how OCT, OCT-A, and AI-driven retinal analysis may help identify cardiovascular, neurologic, and metabolic risk patterns early. (Wagner 2020)

Guest: Dr. Neda Gioia, OD, CNS, IFMCP, FOWNS, is the founder of Integrative Vision, where she combines optometry, functional medicine, and clinical nutrition into a prevention-first model of eye care. She educates clinicians on ocular nutrition, gut-eye interactions, and modern imaging, consults nationally, and offers virtual ocular nutrition services.

Clinical FAQ

Which stool markers may matter for chronic eye symptoms?

Dr. Gioia considers zonulin for permeability, calprotectin for gut-immune activity, and short-chain fatty acids for microbial metabolite status.

Which hormone labs does she look at for midlife dry eye?

DHEA-S, estradiol, and SHBG, with attention to androgen patterns, since meibomian gland lipid secretion is influenced by androgen receptor activity. (Zhu 2026)

How often should adults have a comprehensive eye exam?

Dr. Gioia recommends annual exams starting around age 40, or sooner and more often with ocular symptoms or systemic risk factors, because early glaucoma or macular changes may only show up on imaging.

Ready to elevate your practice? This episode is sponsored by Fullscript, a comprehensive care delivery platform designed to support whole-person, integrative healthcare. Fullscript helps clinicians bring supplement dispensing, lab ordering, and patient education into one centralized workflow. For more practitioner education on supplements, nutrition, and evidence-informed clinical care, visit Fullscript Academy at academy.fullscript.com.

Disclaimer: The views expressed on this podcast are those of the hosts and guests and don’t necessarily reflect those of Fullscript or any affiliated organizations. This podcast is for informational and educational purposes only and is not intended to be medical advice. For your safety, always check with your doctor or healthcare provider before making changes to your health routine.