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How to Choose the Right Sunglasses for UV Protection

Thu, 15 Oct 2026 16:18:20 GMT

Quick Answer: To protect your eyes from UV light, choose sunglasses labeled “UV400” or “100% UV protection,” which block both UVA and UVB rays. Lens darkness and price don’t determine UV protection. Wraparound styles and a brimmed hat add protection because they limit light entering from the sides.

Sunlight can damage the eyes over time. Long-term UV exposure is linked to cataracts, pterygium (a growth on the white of the eye), and possibly age-related macular degeneration. Because the eyes of children absorb more UV than adult eyes, sunglasses matter at every age.

Why darkness can be misleading

Very dark lenses without UV protection can actually be harmful. They cause the pupil to widen, which lets more UV light reach the back of the eye. Always check the label, not the tint.

What to look for

A UV400 or 100% UV label. This means the lens blocks light up to 400 nanometers, which covers all UVA and UVB rays.
Polarization (optional). Polarized lenses reduce glare from water, roads, and snow. They make things easier to see, but they do not add UV protection on their own.
Coverage. Larger frames or wraparound styles block light from the sides and top.
Fit. Sunglasses should sit comfortably on the nose and ears without slipping.

Protection beyond sunglasses

A wide-brimmed hat cuts UV exposure significantly. Sunglasses are most important during midday hours and at high-altitude or snowy locations, where UV intensity is greater. UV can also reach your eyes on cloudy days, so wear sunglasses year-round in New England.

Frequently Asked Questions

Diabetes and Your Eyes: Why Annual Exams Matter

Thu, 15 Oct 2026 16:18:02 GMT

Quick Answer: People with diabetes should have a dilated eye exam at least once a year. High blood sugar can damage the tiny blood vessels in the retina, a condition called diabetic retinopathy, often without early symptoms. Early detection through an annual exam allows treatment before vision loss occurs.

Diabetic retinopathy is one of the leading causes of vision loss among working-age adults. It often develops slowly and painlessly, so vision may seem fine until damage is advanced.

How diabetes affects the eyes

Over time, high blood sugar weakens the walls of small retinal blood vessels. They may leak fluid, close off, or grow abnormal new vessels. These changes can cause blurred vision, floaters, dark spots, or permanent damage to central vision.

Diabetes also raises the risk of cataracts and glaucoma at younger ages than in people without diabetes.

What happens during a diabetic eye exam

A dilated exam uses drops to widen the pupils so the doctor can see the retina, optic nerve, and blood vessels clearly. The exam typically includes:

Visual acuity and refraction testing
Eye pressure measurement
A dilated view of the retina and macula
Imaging when needed to track changes over time

Dilation may blur your vision for a few hours, so arrange a ride home if you’re not comfortable driving afterward.

How often should you be screened?

The American Diabetes Association recommends a comprehensive dilated eye exam at diagnosis for type 2 diabetes, and within five years of diagnosis for type 1 diabetes. After that, most people need an exam every year. Your eye doctor may recommend more frequent visits if retinopathy is present or your blood sugar control has been unstable.

What you can do between visits

Keep blood sugar, blood pressure, and cholesterol within your provider’s target ranges.
Take prescribed medications consistently.
Don’t skip appointments, even when your vision feels normal.
Report sudden vision changes right away.

Frequently Asked Questions

What to Expect During Your First LASIK Consultation

Thu, 15 Oct 2026 16:17:44 GMT

Quick Answer: A LASIK consultation is a detailed evaluation to determine whether laser vision correction is safe and appropriate for you. It includes a review of your health history, measurements of your eyes and corneas, a dilated exam, and a discussion of your options. Not everyone is a candidate, and the consultation is designed to find out.

Your first consultation is about gathering information, not committing to surgery. Expect it to take a couple of hours.

Step 1: Health and vision history

We’ll ask about your overall health, medications, prior eye surgeries or injuries, contact lens history, and your goals. Let us know if you’re pregnant or nursing, have an autoimmune condition, or have a history of dry eye, as these affect candidacy.

Step 2: Measurements and testing

Several tests give your surgeon a complete picture:

Refraction to measure your prescription
Corneal measurements to assess thickness and shape
Corneal topography to map the surface of the cornea
Pupil size measurement, which matters for night vision after surgery
Eye pressure and optic nerve evaluation
Dry eye assessment , since dry eye is one of the most common concerns after LASIK

Step 3: Dilated exam

Drops widen your pupils so the doctor can examine the retina and check for any conditions that could affect safety.

Step 4: Discussing candidacy and options

Your doctor will review your results and explain whether LASIK is a good fit. If it isn’t, there may be other options, including different laser procedures or lens-based alternatives. You should leave with a clear explanation, not a sales pitch.

Preparing for your consultation

Stop wearing contact lenses before your appointment if your doctor instructs you to. Soft and rigid lenses can temporarily change the shape of the cornea, and the required break varies by lens type.
Bring your glasses and current contacts, plus a list of medications and a copy of any previous eye records.
Plan for a ride home because of dilation.
Write down your questions, such as expected recovery time, cost, and what happens if your vision changes over time.

Frequently Asked Questions

How Often Should You Really Get an Eye Exam?

Thu, 15 Oct 2026 16:16:28 GMT

Quick Answer: Healthy adults ages 18 to 64 should generally have an eye exam every two years, while adults 65 and older should have one every year. People with diabetes, glaucoma risk, contact lens use, or other risk factors may need exams more often. Your eye doctor will recommend a schedule based on your individual needs.

An eye exam does more than update your glasses prescription. It screens for glaucoma, cataracts, macular degeneration, diabetic eye disease, and other conditions that often have no early symptoms.

Adults ages 18 to 64

For healthy adults without risk factors, a comprehensive exam about every two years is typically recommended. Many people benefit from annual exams if they wear contacts, work long hours on screens, or have a family history of eye disease.

Adults 65 and older

Eye disease risk rises with age. Annual exams help detect cataracts, glaucoma, and macular degeneration early, when treatment is most effective.

Children

Children should be examined at about 6 months, at age 3, before starting school, and then regularly as recommended by their eye doctor. Early exams catch problems like amblyopia (lazy eye) that are most treatable when young.

People who need more frequent exams

Your doctor may recommend yearly or more frequent exams if you have:

Diabetes or prediabetes
High blood pressure
A family history of glaucoma or macular degeneration
Very high or very low prescriptions
Previous eye surgery or eye injuries
Regular contact lens wear
Medications that affect the eyes, such as some steroids

An exam is not the same as a screening

School and workplace vision screenings check whether you can read letters on a chart. They don’t evaluate eye health. A comprehensive exam with dilation provides a full assessment.

Frequently Asked Questions

Screen Time and Digital Eye Strain: Signs, Causes, and Relief

Thu, 15 Oct 2026 16:16:27 GMT

Quick Answer: Digital eye strain, also called computer vision syndrome, is a group of eye and vision symptoms caused by prolonged screen use. Common signs include dryness, tired eyes, blurred vision, and headaches. The best relief combines the 20-20-20 rule, proper screen setup, updated glasses if needed, and regular eye exams.

Most adults spend hours each day looking at digital devices. Because we blink less when focused on screens, our eyes can dry out and become tired.

Common symptoms

Dry, burning, or gritty eyes
Tired or heavy eyes
Blurred vision at near or far distances
Headaches, especially around the temples or forehead
Neck and shoulder pain

What causes it

Reduced blinking. Blink rates often drop during screen use, increasing tear evaporation.
Focusing demands. Sustained near focus can fatigue the focusing muscles.
Glare and lighting. Bright windows, overhead lights, and reflections increase strain.
Poor setup. Screens positioned too high, too close, or at awkward angles add tension.
Uncorrected vision. Even a small prescription error becomes more noticeable during screen work.

Relief strategies that work

Follow the 20-20-20 rule. Every 20 minutes, look at something about 20 feet away for at least 20 seconds.

Set up your workspace. Place the screen about an arm’s length away and slightly below eye level. Reduce glare with window coverings or an anti-reflective coating on your glasses.

Blink intentionally. Consciously blink fully every so often to keep the surface of your eyes moist.

Use lubricating drops if needed. Preservative-free artificial tears can help with dryness. Ask your eye doctor which product suits you.

Get the right glasses. If you need correction for screen distance, your doctor can prescribe computer glasses optimized for that range.

When to see an eye doctor

Schedule an exam if symptoms persist despite these changes, or seek care promptly for sudden vision loss, double vision, eye pain, or flashes and new floaters.

Frequently Asked Questions

Back-to-School Vision Checklist for Parents

Thu, 15 Oct 2026 16:16:24 GMT

Quick Answer: Before school starts, schedule a comprehensive eye exam for your child, even if they passed a school vision screening. Screenings check only some vision skills and miss many problems. Use this checklist to schedule exams, watch for warning signs, protect eyes during sports, and set healthy screen habits.

Much of classroom learning happens through the eyes, which makes healthy vision central to school success. Many children with vision problems never complain because they assume everyone sees the way they do.

Checklist

☐ Schedule a comprehensive eye exam before the school year begins.
☐ Confirm glasses fit and bring a backup pair if your child wears them.
☐ Choose protective eyewear for sports. Look for polycarbonate lenses and eyewear labeled for the specific sport.
☐ Set screen limits and encourage breaks using the 20-20-20 rule.
☐ Check the classroom setup if your child sits far from the board or has trouble seeing it.
☐ Stock allergy supplies if seasonal allergies affect your child’s eyes.

Signs your child may need an exam

Squinting or frowning when looking at distant objects
Sitting very close to the TV or board
Rubbing eyes frequently
Frequent headaches or complaints of tired eyes after reading
Losing their place while reading or skipping words
Tilting the head or covering one eye
Avoiding reading, drawing, or other close work
Clumsiness in sports or poor hand-eye coordination

Why a screening isn’t enough

School screenings usually measure distance acuity only. They don’t evaluate eye focusing, eye teaming, depth perception, or eye health. A comprehensive exam with dilation provides a complete assessment.

Protect vision during sports

Many sports-related eye injuries are preventable. Protective eyewear designed to meet sport-specific standards helps reduce the risk of serious injury. Ask your eye care provider which options are best for your child’s activities.

Frequently Asked Questions

Managing Seasonal Allergies When You Wear Contact Lenses

Thu, 15 Oct 2026 16:16:23 GMT

Quick Answer: Seasonal allergies make contact lenses uncomfortable because pollen and other allergens collect on the lens surface and trigger itching and redness. To manage symptoms, use daily disposable lenses, rewetting drops labeled for contact lens wear, and allergy-safe eye drops approved by your doctor. On the worst days, switching to glasses can give your eyes a break.

Allergies affect many contact lens wearers. The good news is that most symptoms can be managed with simple changes.

Why allergies and contacts don’t mix well

Allergens such as pollen, dust, and pet dander attach to the lens surface and the eye’s tear film. The eye responds by releasing histamine, which causes itching, redness, watering, and swelling. Contacts can also trap these particles against the eye, prolonging irritation.

Strategies that help

Choose daily disposables. Replacing lenses every day means fewer allergens accumulate.

Use compatible rewetting drops. Products labeled for use with contact lenses help moisten the lens and eye. Avoid drops that contain redness-reducing ingredients for regular use, since they can cause rebound redness.

Ask about allergy eye drops. Some antihistamine drops are safe with contacts, while others must be used only when lenses are out. Your doctor can recommend the right one.

Be careful with oral antihistamines. Many can cause dryness, which may worsen contact lens discomfort. Talk with your doctor or pharmacist about the best option.

Keep your hands clean. Wash hands before handling lenses, and avoid rubbing your eyes, which can release more histamine and irritate the surface.

Replace cases regularly. Clean your lens case and replace it according to your provider’s instructions to prevent contamination.

Switch to glasses on bad days. Giving your eyes a break is one of the most effective strategies during peak pollen season.

When to see your eye doctor

Call your eye care provider if you experience pain, light sensitivity, blurred vision, discharge, or redness that doesn’t improve. These symptoms can signal an infection or other problem that needs prompt attention.

Frequently Asked Questions

Signs Your Child Might Need Glasses (Even If They Haven’t Complained)

Thu, 15 Oct 2026 16:16:22 GMT

Quick Answer: Children often don’t report vision problems because they assume everyone sees the way they do. Warning signs include squinting, sitting close to screens or books, rubbing eyes, headaches, and losing their place while reading. If you notice these signs, schedule a comprehensive pediatric eye exam rather than waiting for a complaint.

Children may not realize that blurry vision is unusual. A child who has always been nearsighted may think the world is supposed to look fuzzy at a distance. Behavior is often the first clue.

Behavioral signs to watch for

Squinting when looking at the board, TV, or distant objects
Sitting very close to screens or holding books close
Tilting or turning the head to see better
Covering or closing one eye
Rubbing eyes frequently
Complaining of headaches, especially after school or reading
Avoiding reading, puzzles, or other close work
Losing their place or skipping words when reading
Trouble catching balls or judging distances in sports

Why early detection matters

Some vision problems, such as amblyopia (lazy eye) and strabismus (eye turn), are most treatable when identified early. Waiting can allow vision in one eye to develop less fully, which may be difficult to reverse later.

What a pediatric exam includes

A comprehensive exam evaluates how well each eye sees, how the eyes focus and work together, and the health of the front and back of the eye. Dilation may be used to get a clear view of the retina and optic nerve.

Recommended exam schedule

The American Academy of Ophthalmology suggests a first exam at about 6 months of age, again at age 3, before starting school, and then periodically as your eye doctor recommends. Children with a family history of eye problems or other risk factors may need more frequent exams.

Frequently Asked Questions

Blue Light Glasses: Do They Actually Work?

Thu, 15 Oct 2026 16:16:19 GMT

Quick Answer: Blue light glasses have not been shown to prevent eye strain or protect the retina from screen light. Screens emit only a small amount of blue light compared with sunlight. The strategies with the best evidence for digital eye strain are taking regular breaks, adjusting your screen setup, reducing glare, and getting an eye exam to correct vision problems.

Blue light glasses are widely marketed, so it’s understandable to wonder whether they’re worth buying. Here’s an honest look at what the evidence shows.

What is blue light?

Blue light is a part of visible light. It’s present in sunlight, and it’s emitted by LED screens, phones, and computers. Because sunlight is far more intense, most daily blue light exposure comes from outdoors.

What the research shows

Major eye care organizations, including the American Academy of Ophthalmology, have said that current research does not show blue light glasses prevent eye strain or protect eyes from screen-related damage. Studies on sleep and screen light have produced mixed results, and light exposure in the evening is one of several factors that can affect sleep.

Why you may still feel better

Some people report comfort with tinted lenses. That can be real, but the benefit often comes from reduced glare or contrast changes, not from blocking blue light specifically. If you find them comfortable and they don’t cause problems, they aren’t harmful, but they shouldn’t replace proven strategies.

What actually helps

Follow the 20-20-20 rule to rest your focusing muscles.
Blink more often and use lubricating drops if your eyes feel dry.
Reduce glare by adjusting lighting and positioning your screen away from windows.
Lower screen brightness to match the room.
Use an anti-reflective coating on your glasses to reduce reflections and improve visual comfort.

Get the right prescription. Uncorrected vision is a common cause of screen-related discomfort.

Frequently Asked Questions

Understanding Your Eye Exam Results: Common Terms Explained

Thu, 15 Oct 2026 16:16:17 GMT

Quick Answer: Eye exam results use shorthand to describe your prescription. SPH (sphere) indicates nearsightedness or farsightedness, CYL (cylinder) and AXIS describe astigmatism, ADD is the extra power for reading in multifocal lenses, and PD (pupillary distance) is the spacing between your pupils. Knowing these terms helps you understand your results and shop for glasses or contacts confidently.

Your eye exam report may look like a chart of numbers and abbreviations. Here’s what the most common terms mean.

Prescription terms

OD and OS. OD refers to the right eye (oculus dexter), and OS refers to the left eye (oculus sinister). OU means both eyes.
SPH (Sphere). The main lens power. A minus (−) number means nearsightedness, which makes distant objects blurry. A plus (+) number means farsightedness, which makes close objects harder to see.
CYL (Cylinder). The added power to correct astigmatism, an irregular curvature of the eye that blurs vision at all distances.
AXIS. The orientation, in degrees from 1 to 180, of the astigmatism correction. It only appears when CYL is present.
ADD. The extra magnifying power for reading or near tasks, used in multifocal and reading lenses. It typically appears in age-related near vision changes, called presbyopia.
PD (Pupillary Distance). The distance between your pupils in millimeters. It helps position lenses correctly in your frames. Some reports list monocular PDs for each eye.
Prism. Included when the eyes need help aligning. Not everyone needs prism correction.

Vision terms

20/20 vision. A standard measure meaning you can see at 20 feet what a person with typical vision sees at 20 feet. 20/40 means you need to be 20 feet away to see what most people can see at 40 feet.

Eye health terms

IOP (Intraocular Pressure). Fluid pressure inside the eye. Measurements typically fall between about 10 and 21 mmHg, but pressure alone doesn’t determine glaucoma risk.
Cup-to-disc ratio. A measurement of the optic nerve’s appearance. Changes in this ratio over time can be an early sign of glaucoma and are monitored at follow-up visits.
Dilated fundus exam. A detailed view of the retina, macula, optic nerve, and blood vessels after drops widen the pupils.

Questions to ask at your visit

What does my prescription mean for everyday tasks?
Do my results show any changes since my last exam?
Is there anything I should monitor or return sooner for?
Which lens options and coatings would suit my lifestyle?