Many people assume they only need an eye exam when their vision becomes blurry or they start having trouble reading. If you can see clearly, you may think there is no reason to visit an optometrist.
However, clear vision does not always mean your eyes are healthy.
Some eye conditions develop gradually and may not cause noticeable changes in vision during their early stages. An eye examination can assess more than how clearly you can see. It can also help evaluate the health of your eyes and identify changes that may need monitoring or treatment.
So, how do you know when it is time for an eye exam? Here are some signs and situations that should not be ignored, even if your eyesight seems fine.
1. You Get Frequent Headaches
Frequent headaches can sometimes be related to your vision.
If your eyes are working harder than they should to focus, particularly when reading, driving, using a computer, or working on a phone, you may develop headaches or discomfort around your eyes.
Vision-related headaches can occur because of an outdated prescription, difficulty focusing, uncorrected refractive errors, or problems with how your eyes work together.
However, headaches can have many causes unrelated to your eyes. An eye exam can help determine whether a vision problem may be contributing to your symptoms.
2. Your Eyes Feel Tired After Screen Use
Digital screens are part of everyday life for many Canadians. If you work at a computer, study online, use a smartphone, or spend your free time looking at screens, prolonged screen use can contribute to digital eye strain.
You may notice:
- Tired or sore eyes.
- Difficulty focusing.
- Dry or watery eyes.
- Temporary blurry vision.
- Headaches.
- Increased sensitivity to light.
These symptoms do not necessarily mean you have an eye disease. However, if they happen regularly, an eye examination can help determine whether an underlying vision issue, prescription change, or focusing problem could be contributing to your discomfort.
3. You Have Trouble Seeing at Night
You may see perfectly well during the day but notice that nighttime driving has become more difficult.
Problems such as increased glare from headlights, halos around lights, reduced contrast, or difficulty seeing road signs in low-light conditions should not be ignored.
Night vision problems can have several possible causes, including changes in your prescription and certain eye conditions.
If nighttime vision has changed recently, schedule an eye examination so an optometrist can assess your vision and eye health.
4. You Notice More Eye Strain
Eye strain can occur when your eyes work harder than necessary to focus.
You may experience discomfort after:
- Reading.
- Working on a computer.
- Using your phone.
- Driving for long periods.
- Doing detailed close-up work.
You might also find yourself rubbing your eyes or taking frequent breaks because your eyes feel tired.
Occasional eye fatigue can be normal, particularly after extended screen use. But persistent or recurring eye strain may be a reason to have your vision checked.
5. You Squint to See Clearly
Squinting may seem like a harmless habit, but it can be a sign that your eyes are having difficulty focusing.
Some people squint when looking at distant signs, television screens, classroom boards, or small print.
You may still feel that your vision is “good enough,” particularly if the change has happened gradually. However, squinting can indicate that your prescription needs to be checked.
An eye exam can determine whether glasses or a prescription update could improve your vision. You can also read more about the signs you may need glasses and when it may be time to have your vision assessed.
6. You Find Yourself Moving Things Closer or Farther Away
Have you started holding your phone farther away to read messages? Do you move a book closer to your face or increase the font size on your computer?
These changes may indicate that your near vision has changed.
Presbyopia is a common age-related change that affects the eye’s ability to focus on nearby objects. It often becomes noticeable during the 40s.
An eye examination can determine whether presbyopia or another vision change is responsible for your difficulty focusing. Difficulty reading small print and needing to move objects farther away can also be signs that your vision needs to be checked.
7. You Have Difficulty Focusing Between Near and Far Objects
Your eyes constantly adjust when you move your attention from something close to something far away.
For example, you might look at your phone and then quickly look across the room. If your vision takes longer than usual to become clear, or you regularly experience temporary blur when changing focus, it may be worth discussing with an optometrist.
Focusing problems can have different causes, and an eye examination can help identify what may be contributing to the symptoms.
8. You Experience Double Vision
Seeing two images instead of one should not be ignored.
Double vision can have different causes, ranging from problems with eye coordination to issues affecting the eyes or other parts of the visual system.
If double vision occurs repeatedly or suddenly, arrange an eye examination promptly.
If you experience sudden double vision along with other serious symptoms, seek urgent medical attention.
9. You Notice New Floaters or Flashes of Light
Floaters are small spots, lines, or shapes that appear to move across your field of vision. They can be more noticeable when looking at a bright background, such as a clear sky or white wall.
Occasional floaters can be common, particularly as people get older. However, a sudden increase in floaters, especially when accompanied by flashes of light or a shadow or curtain-like area in your vision, can be a warning sign of a serious retinal problem.
These symptoms require prompt assessment.
Do not wait for your next routine eye examination if these changes occur suddenly.
10. You Have Persistent Dry or Irritated Eyes
Dry, gritty, burning, or watery eyes can be signs of dry eye or other surface problems.
You may be more likely to experience dry eye symptoms if you:
- Spend long periods looking at screens.
- Work in dry or air-conditioned environments.
- Wear contact lenses.
- Are exposed to wind or smoke.
- Take certain medications.
If dry eye symptoms are frequent or affecting your daily activities, an eye examination can help determine the possible cause and appropriate management.
11. You Have a Family History of Eye Disease
Even if your vision is excellent, your family history can influence your risk of certain eye conditions.
If a parent or close family member has had glaucoma, macular degeneration, or another significant eye condition, tell your optometrist.
Your eye care professional may recommend a specific examination schedule or additional testing based on your family history and other risk factors. A comprehensive eye exam can assess your vision while also checking the health of structures within your eyes.
12. You Have Diabetes or Another Health Condition That Can Affect Your Eyes
Certain health conditions can increase the risk of eye complications.
Diabetes, for example, can affect the blood vessels in the retina and lead to diabetic retinopathy. Importantly, diabetic eye disease may not cause noticeable symptoms during its early stages.
Regular eye examinations are therefore important for people with diabetes, even when their vision seems normal.
Your optometrist can recommend how frequently your eyes should be examined based on your health and individual risk factors.
13. You Are Over 40
Your eyes naturally change as you age.
Around the 40s, many people begin noticing changes in their ability to focus on nearby objects. Other age-related eye conditions also become more common as people get older.
You may still have excellent distance vision but notice that reading small print has become more difficult or that you need brighter lighting.
Regular eye examinations can help monitor these changes and identify potential eye health concerns. Smart Opticals also provides eye exams for seniors to help monitor age-related changes in vision and eye health.
14. You Have Not Had an Eye Exam in Several Years
Even if you have no symptoms, going several years without an eye examination may mean that changes in your eye health or prescription are not being monitored.
Your recommended examination schedule depends on factors such as your age, eye health, medical history, family history, and whether you wear corrective lenses.
If you are unsure when you last had an eye exam, that alone can be a good reason to contact an optometrist and ask when your next examination is recommended.
For more guidance, read How Often Should You Get an Eye Exam in Mississauga?.
Can You Have an Eye Problem Without Symptoms?
Yes.
Some eye diseases can develop without noticeable symptoms in their early stages. This is one of the main reasons routine eye examinations are important.
For example, glaucoma can gradually damage the optic nerve, and people may not notice significant changes in their vision until the condition has progressed.
An eye examination allows an optometrist to assess more than visual sharpness. Depending on your age and risk factors, the examination may include assessments of your eye pressure, optic nerve, retina, and other structures.
When Should You Seek Urgent Eye Care?
Not every vision change requires emergency care, but certain symptoms should be assessed promptly.
Seek urgent medical or eye care if you experience:
- Sudden loss of vision.
- A sudden increase in floaters.
- Flashes of light.
- A dark curtain or shadow across your vision.
- Sudden double vision.
- Significant eye pain.
- A serious eye injury.
- Sudden severe changes in your vision.
These symptoms can sometimes indicate conditions that require immediate assessment.
What Happens During an Eye Exam?
A comprehensive eye exam is about more than reading an eye chart.
Depending on your individual needs, your optometrist may check your visual acuity, prescription, eye movements, focusing ability, eye pressure, and the health of structures such as the cornea, lens, retina, and optic nerve.
Your optometrist will also ask about your symptoms, health history, medications, and family history.
If you are preparing for an appointment, you can read What Happens During a Comprehensive Eye Exam? for a closer look at the tests and assessments that may be included.
Based on the findings, your optometrist can recommend whether you need glasses or contact lenses, monitoring, treatment, or further assessment.
How Often Should You Have an Eye Exam?
There is no single schedule that works for everyone.
Children generally need regular examinations because their eyes and visual systems are still developing. Adults with healthy eyes may require exams every few years depending on their age and individual circumstances. Older adults and people with certain medical conditions or risk factors may need more frequent examinations.
If you have noticed a new change in your vision, you should not wait for your next routine appointment. Your optometrist can advise you on the appropriate timing based on your symptoms.
Protect Your Vision With Regular Eye Exams at Smart Opticals
You do not have to wait until your vision becomes blurry to book an eye exam. Headaches, eye strain, difficulty seeing at night, squinting, focusing problems, and changes in your eyes can all be reasons to have your vision and eye health checked.
At Smart Opticals, comprehensive eye examinations can help assess your vision and monitor the health of your eyes. If you are due for a routine examination or have noticed a change in your vision, an eye exam can help you understand what is happening and whether further care is needed.
Contact Smart Opticals to schedule your eye examination and stay proactive about your eye health.
Frequently Asked Questions
Can you have an eye problem even if you see clearly?
Yes. Some eye conditions may develop without noticeable symptoms in their early stages. Regular comprehensive eye examinations can help detect changes that may not be obvious through everyday vision.
How do I know if I need an eye exam?
Frequent headaches, eye strain, squinting, difficulty seeing at night, trouble focusing, dry eyes, or changes in your vision can all be reasons to schedule an eye exam. Regular examinations are also important even when you have no symptoms.
Is eye strain a sign that I need glasses?
Eye strain can sometimes be associated with an outdated prescription or an uncorrected vision problem, but it can also have other causes. An eye examination can help determine whether your prescription or eye health may be contributing.
Should I get an eye exam if I have no symptoms?
Yes. Routine eye examinations are important because some eye diseases may not cause noticeable symptoms in their early stages.
Are new floaters always serious?
Not necessarily. Some floaters can be a normal age-related change. However, a sudden increase in floaters, especially when accompanied by flashes or a curtain-like shadow, requires prompt eye assessment.