How to Improve Your Eye Health & Offset Vision Loss | Dr. Jeffrey Goldberg
Dr. Jeffrey Goldberg, Chair of Ophthalmology at Stanford, discusses maintaining and improving eye health across the lifespan. He covers eye exams, myopia prevention, corrective lenses, dry eye, UV protection, and major conditions like glaucoma and macular degeneration, offering behavioral, surgical, and supplemental tools.
Deep Dive Analysis
26 Topic Outline
Introduction to Dr. Jeffrey Goldberg and Eye Health Topics
Early Childhood Eye Exams and Screening
Myopia Development and Outdoor Light Exposure
General Eye Safety and Hygiene Practices
Adult Eye Exams and Roles of Optometrists vs. Ophthalmologists
Presbyopia and the Use of Reading Glasses
Night Vision Challenges and Latent Hyperopia
Eye Exercises and Supranormal Vision Training
Defining Visual Acuity and 20/20 Vision
Contact Lenses: Benefits, Risks, and Recommendations
UV Protection vs. Blue Light Blocking for Eye Health
LASIK Eye Surgery: Procedure and Considerations
Understanding and Managing Dry Eye
Advanced Treatments for Dry Eye
Major Causes of Vision Loss: Cataracts and Glaucoma
Age-Related Macular Degeneration (AMD)
Diabetic Retinopathy and Diabetes Management
Diabetic Retinopathy Treatment and Blood Pressure Control
Glaucoma Screening and Treatment Options
Impact of Smoking, Vaping, and Cannabis on Eye Health
Sleep Position and Eye Pressure in Glaucoma
Red Light Therapy for Macular Degeneration and Optic Neuropathies
Eye Floaters: Causes and Management
AREDS2 Supplementation for Macular Degeneration
Vitamin B3 Supplementation for Glaucoma
Retinal Imaging for Neurodegeneration Screening
12 Key Concepts
Red Reflex
This is the red glow seen when light reflects off the retina, often visible in flash photos. Its absence in a newborn's eye can indicate serious conditions like retinoblastoma, making it a critical early screening indicator.
Amblyopia (Lazy Eye)
A condition where one eye fails to develop proper vision because the brain ignores its input, often due to significant differences in refractive error between the eyes or eye misalignment (strabismus). Early detection and correction are crucial to prevent permanent vision loss.
Myopia (Nearsightedness)
A refractive error where the eyeball lengthens, causing distant objects to appear blurry because light focuses in front of the retina. Recent research suggests that insufficient outdoor time and full-spectrum sunlight exposure in childhood contribute significantly to its development.
Presbyopia
The age-related decline in the eye's ability to focus on near objects, typically starting around age 40. It occurs because the natural lens inside the eye stiffens, making it harder for the eye muscles to reshape it for close-up vision, leading to the need for reading glasses.
Latent Hyperopia
A condition where the eye's natural focus is effectively 'beyond infinity,' requiring constant, subconscious muscle effort to focus on distant objects. This can lead to eye strain and fatigue, especially in low light or at the end of the day, and may be relieved by mild positive (plus) lenses.
20/20 Vision
A measure of visual acuity, meaning one can read at 20 feet what an average healthy person can read at 20 feet. Vision can be worse (e.g., 20/40, meaning one sees at 20 feet what a normal person sees at 40 feet) or better (e.g., 20/10).
Cataract
A common age-related condition characterized by the clouding or blurring of the natural lens inside the eye, which obstructs light and impairs vision. It is a treatable condition, typically corrected with a quick surgical procedure to replace the cloudy lens with a clear artificial one.
Glaucoma
A neurodegenerative disease affecting the optic nerve, which transmits visual information from the eye to the brain. It often progresses without noticeable symptoms in its early stages, primarily affecting peripheral vision, and can lead to irreversible vision loss if untreated, even with normal eye pressure.
Age-Related Macular Degeneration (AMD)
A leading cause of vision loss in older adults, affecting the macula, the central part of the retina responsible for sharp, detailed vision. It has two forms: dry (slow degeneration of photoreceptors) and wet (abnormal, leaky blood vessel growth), with treatments available to slow progression or manage the wet form.
Diabetic Retinopathy
A serious complication of diabetes where high blood sugar damages the blood vessels in the retina, leading to leakage, new abnormal blood vessel growth, and neurodegenerative changes. It can cause significant vision loss and blindness if not managed through strict blood sugar and blood pressure control, and specific eye treatments.
Floaters
Small, semi-translucent specks or shapes that appear to drift across the field of vision. They are caused by the natural shrinking and congealing of the vitreous jelly inside the eye as it ages, which can pull away from the retina and create visible debris. They are usually harmless and often fade or are ignored by the brain over time.
Retinal Imaging for Neurodegeneration
A diagnostic approach that uses advanced imaging techniques to examine the retina and optic nerve, which are direct extensions of the brain. This allows for early detection and monitoring of neurodegenerative diseases like multiple sclerosis, Alzheimer's, and Parkinson's, as changes in these structures can reflect broader brain health.
21 Questions Answered
Every baby should get a red reflex check at birth. Regular exams are not typical until elementary school unless parents notice issues like poor eye contact, roving eye movements, or nystagmus.
It's crucial to correct eye misalignment early in childhood, ideally before age three, to prevent permanent loss of the eye-brain connection (amblyopia), though some correction is possible into early teens.
While historically linked to near work, recent studies suggest that a lack of outdoor time and full-spectrum sunlight may be a more significant factor in the development of nearsightedness in children.
Studies show that spending time outdoors can slow the progression of nearsightedness, with a clear benefit seen between zero and one or two hours outdoors, though the optimal 'dose' is still being researched.
For rinsing the eye, use a sterile saline solution or preservative-free artificial teardrops, gently spritzing into the open eye to rinse out dirt or lashes.
While many adults without symptoms may not see an eye care provider for decades, it's recommended to get some form of screening exam, especially after age 40, to check for conditions like glaucoma where high eye pressure may not be felt.
While there's mixed data on whether delaying readers slows presbyopia progression, it's generally recommended to use glasses for optimal vision and comfort, as feeding the brain blurry information is not beneficial.
These exercises are not harmful and can be prescribed for conditions like convergence insufficiency or concussion recovery, showing some clinical benefit in regaining control of eye movements and the eye-brain connection.
While contacts can alter tear dynamics and oxygen diffusion, most people tolerate them well, especially younger individuals. However, they carry a risk of corneal infection if not cleaned properly or if slept in, and tolerance may decrease with age.
There is no strong data to suggest that blocking blue light is helpful for eye health, and it may interfere with circadian rhythm entrainment. Blocking UV light, however, is beneficial and standard in most modern lenses.
It's generally not ideal for children or young teenagers because their eyes are still developing and changing shape, which could negate the effects of the surgery, making it best to wait until prescriptions have been stable for several years.
While artificial tears effectively replace the saltwater component of tears, they often do not adequately replace the essential oily layer produced by meibomian glands, which is crucial for preventing tear evaporation and maintaining tear film quality.
The two major risk factors for glaucoma are increasing age, with most cases presenting after age 40, and elevated eye pressure, which often goes unnoticed by the patient.
Glaucoma treatments focus on lowering eye pressure through eye drops, laser procedures (like SLT), or surgery, which can slow the progression of optic nerve damage and vision loss, even if initial pressure is in the normal range.
The most crucial factor in preventing diabetic retinopathy is maintaining excellent control over blood sugar levels (measured by hemoglobin A1c) and blood pressure, as demonstrated in large clinical trials.
Yes, smoking and vaping nicotine are major risk factors for both macular degeneration and glaucoma, contributing to the progression of vision loss and causing inflammation and dryness of the eyes.
While cannabis can lower eye pressure, its effect is temporary (only while high), and the smoking method is detrimental to eye health. It's not a primary treatment, but edibles before bed might help control nocturnal eye pressure peaks in select cases.
Elevating the head by 30 degrees with pillows can help lower eye pressure, which may be beneficial for severe glaucoma, but only if it doesn't disrupt sleep quality, as good sleep is paramount for overall health.
Floaters are caused by the natural shrinking and peeling of the eye's internal jelly (vitreous) with age, creating small tissue bits or concretions. In almost all cases, they are harmless and will either go away or the brain will learn to filter them out, making surgical intervention generally unnecessary due to associated risks.
AREDS2 is a specific vitamin and mineral supplement formulation (Vitamin C, E, Zinc, Copper, Lutein, Zeaxanthin) shown to slow the progression of intermediate or advanced dry age-related macular degeneration, and should be considered only after consultation with an eye care provider.
Studies suggest that nicotinamide (Vitamin B3) supplementation, particularly at 1.5 grams per day, may improve retinal ganglion cell function and vision in some glaucoma patients, especially those whose disease progresses despite pressure-lowering treatments, but should be discussed with an eye care provider.
19 Actionable Insights
1. Regular Comprehensive Eye Exams
Adults, especially after age 40, should get regular comprehensive eye exams from an optometrist or ophthalmologist to screen for diseases like glaucoma, check eye pressure, and examine the retina and optic nerve, as many serious eye conditions have no early symptoms.
2. Encourage Outdoor Time for Children
Have children spend time outdoors daily, even when doing near work, as exposure to full-spectrum sunlight is linked to less progression of nearsightedness (myopia). Studies suggest 1-2 hours outdoors can make a difference.
3. Protect Eyes from Trauma
Wear eye protection such as glasses, goggles, or safety goggles when engaging in activities like metal grinding, significant gardening, sanding, or woodshop projects to prevent unnecessary eye injuries and trauma.
4. Avoid Smoking and Vaping
Refrain from smoking or vaping nicotine, as it is a major risk factor for both glaucoma and macular degeneration, and can also exacerbate dry eye by causing inflammation and drying out the eyes.
5. Control Diabetes and Blood Pressure
If you have diabetes, strictly control your blood sugar levels (hemoglobin A1c) and blood pressure through lifestyle changes or medication, as these are critical for preventing and managing diabetic retinopathy.
6. Manage Dry Eye with Preservative-Free Drops
For dry eye, use preservative-free artificial teardrops as often as needed, as they are safe for frequent use and avoid the irritation or inflammation that preservatives can cause on the ocular surface.
7. Clean Eyelashes for Eye Health
Clean your eyelashes with diluted no-more-tears baby shampoo or specialized eyelid scrubs once or twice a day to keep oil glands functioning optimally and maximize high-quality tear production, especially if you experience blepharitis or scurf.
8. Rinse Eyes with Sterile Saline
If you get something in your eye, use a sterile saline solution (over-the-counter eyewash) or preservative-free artificial teardrops to rinse it out, as tears and blinking are generally effective for daily cleanliness.
9. Correct Eye Misalignment Early
If eye misalignment (strabismus) is detected in children, seek early correction, ideally before age three but even up to young teen years, to prevent permanent vision loss (amblyopia) and ensure proper brain-eye connection.
10. Use Reading Glasses as Needed
If experiencing presbyopia (age-related difficulty focusing at near), use reading glasses to enjoy clear vision and relax eye muscles; intentionally avoiding them may not significantly slow progression and can cause eye strain.
11. Choose Daily Disposable Contact Lenses
If you wear contact lenses, opt for daily disposable lenses when possible, as they are generally safer and reduce the risk of corneal infections by eliminating the need for cleaning and reuse.
12. Avoid Sleeping in Contact Lenses
Never sleep in contact lenses overnight, as this significantly reduces oxygen to the eye surface and increases the risk of bacterial infections, which can lead to severe corneal damage.
13. Protect Eyes from UV Light
Block UV light to protect your eyes from accelerated cataract formation and potential retinal damage; most eyeglasses and car glass already filter UV, and a wide-brimmed hat or sunglasses can provide additional protection.
14. Ask About Serum Tears for Dry Eye
If you have severe dry eye and standard treatments are insufficient, ask your eye care provider about ‘serum tears’ (diluted blood serum), which are rich in growth factors and can be very helpful for advanced cases.
15. Consider Red/Near-Infrared Light Therapy
Explore red or near-infrared light therapy (small, non-invasive daily doses) as a potential neuroprotective approach for age-related macular degeneration and optic neuropathies, though specific protocols are still under research.
16. Elevate Head While Sleeping for Glaucoma
For severe glaucoma, consider sleeping with your head elevated (e.g., at a 30-degree angle on pillows) if tolerable, as this may help lower eye pressure during the night when it is typically highest.
17. Perform Eye Focusing Exercises
Engage in eye exercises like ‘pencil pushups’ (focusing on a pen moved from arm’s length to nose and back) or smooth pursuit tracking, as they are not harmful and may help some individuals feel more visually active, and are used in concussion recovery protocols.
18. Explore Vision Performance Training
Consider vision performance training, such as using specialized goggles that intermittently black out vision, to potentially enhance visual reflexes and acuity beyond normal levels, as studied in athletes and gamers.
19. Ignore Eye Floaters
If you experience eye floaters, try to ignore them, as they are common, usually harmless, and often either go away on their own or your brain will learn to filter them out over time, making surgical intervention generally unnecessary.
5 Key Quotes
If we all live to a hundred or 110 years old, we'll all get cataracts, we'll all need cataract surgery.
Dr. Jeffrey Goldberg
If you're taking a medicine where you don't feel better, you know, if you have a headache and you take an aspirin or Tylenol or an ibuprofen, you know, you feel better, you feel reinforced. Gosh, taking that pill made sense, right?
Dr. Jeffrey Goldberg
You're definitely not going to hurt anything. So totally fine to do it. And some people may notice, you know, like they feel a little more visually active if they do these kinds of exercises.
Dr. Jeffrey Goldberg
The eye is an outgrowth of the brain.
Dr. Jeffrey Goldberg
We're really just on the cusp of really understanding the biology of how these different light therapies might be leveraged maximally to maximize our eye health, and both during development and at the other end of the spectrum as we age.
Dr. Jeffrey Goldberg
6 Protocols
Eyelash Cleaning for Blepharitis
Dr. Jeffrey Goldberg- Pump a small amount of no-more-tears baby shampoo into your palm.
- Dilute with a little water.
- Gently close your eyes (don't scrunch too tight).
- Lightly rub the eyelashes with your finger or a washcloth edge.
Pencil Pushups (Near-Far Exercise)
Dr. Jeffrey Goldberg (described by Andrew Huberman)- Hold a pen or pencil at arm's length.
- Slowly move it toward your nose while maintaining focus.
- Move it back out to arm's length.
- Repeat for 10-25 repetitions, once or twice a day, a few times a week.
Contact Lens Hygiene
Dr. Jeffrey Goldberg- Use daily disposable contact lenses whenever possible for maximum safety.
- If using two-week or four-week lenses, follow cleaning instructions diligently, using cleaning solution overnight.
- Never sleep in contact lenses overnight to reduce infection risk.
Preservative-Free Artificial Tears Use
Dr. Jeffrey Goldberg- Purchase preservative-free artificial tears, typically sold in strips of single-use vials.
- Break off a single vial and open the cap.
- Use as much as needed throughout the day.
- Discard any remaining solution and the vial at the end of the night.
AREDS2 Supplementation for Macular Degeneration
Dr. Jeffrey Goldberg- Consult an eye care provider to determine if you have intermediate or advanced dry age-related macular degeneration in one or both eyes.
- If indicated, take a daily supplement containing specific doses of Vitamin C, Vitamin E, Zinc, Copper, Lutein, and Zeaxanthin.
Vitamin B3 (Nicotinamide) Supplementation for Glaucoma
Dr. Jeffrey Goldberg- Consult an eye care provider to discuss if you have glaucoma, especially if it's progressing despite pressure-lowering treatments.
- Consider a daily supplement of nicotinamide (Vitamin B3) at 1.5 grams per day, split into two or three doses, as studies suggest it may improve retinal ganglion cell function and vision in some glaucoma patients.