If your eyes feel heavy, sore, or strained after reading, working, or driving, something is causing it. Eye strain is your eyes signaling that they're working harder than they should. We find out why.
Eye strain (also called asthenopia) is not a diagnosis in itself — it is a symptom with a cause. The most common culprits include an uncorrected or undercorrected prescription, binocular vision problems such as convergence insufficiency, accommodative insufficiency or spasm, dry eye disease, and prolonged screen use. Many patients live with eye strain for months or years assuming it is "normal" — often because their last glasses prescription was fine. But vision needs change, and even small prescription errors can create significant strain over a full day of work or reading. We evaluate all contributing factors and build a treatment plan that targets the actual source of your discomfort.
If you find yourself rubbing your eyes, squinting, or reaching for pain reliever after a long work or reading session, your eyes are trying to tell you something.
People who read or work on screens for hours
Sustained near work — reading, computer use, detailed work — demands continuous effort from the eye's focusing system. When that system is under-resourced by an outdated prescription or a binocular vision weakness, fatigue builds quickly.
Those with an outdated or missing glasses prescription
Even a modest change in prescription — especially in the early stages of presbyopia or a slight increase in astigmatism — can cause disproportionate fatigue. If you haven't had a vision exam in more than a year, a prescription update may be all you need.
Patients with binocular vision or focusing problems
Conditions like convergence insufficiency (difficulty keeping eyes aligned for near work) and accommodative dysfunction (difficulty sustaining focus) cause significant eye strain even when a standard eye chart reading is perfect. These conditions require specific testing to diagnose.
Eye strain evaluation goes beyond a standard vision check. We test the components of your visual system that standard screenings often miss.
We perform a full evaluation of your eye health, ruling out medical causes of eye discomfort such as dry eye disease, inflammation, or elevated eye pressure before attributing symptoms to a refractive or binocular vision cause.
We assess your refraction carefully for near and intermediate distances, evaluate your accommodative (focusing) system, and test eye teaming and convergence. These tests identify binocular vision dysfunctions that standard exams often miss but that cause significant daily strain.
Depending on findings, treatment may include an updated prescription (including computer-specific lenses), prism correction, dry eye treatment, vision therapy exercises, or simply guidance on work habits and ergonomics. We match the treatment to your actual diagnosis.
Have a question not answered here? Feel free to call or text our team.
Eye strain (asthenopia) has multiple causes: an uncorrected or undercorrected refractive error, accommodative dysfunction (difficulty sustaining focus), convergence insufficiency (difficulty aligning the eyes for near work), dry eye disease, and prolonged screen use with reduced blink rate. Identifying which factor — or combination of factors — is driving your symptoms is the essential first step to effective treatment.
Absolutely. An outdated prescription, a prescription that was measured inaccurately, or glasses with the wrong lens type for your visual demands (for example, using standard progressive lenses for primarily computer work) can all cause significant eye strain. If your symptoms started or worsened after getting new glasses, the glasses should be re-evaluated.
In most cases, eye strain reflects a functional issue — an unmet refractive need or a binocular vision inefficiency — rather than a dangerous eye disease. However, some medical eye conditions, including early glaucoma and inflammatory conditions, can present with vague eye discomfort. A comprehensive eye exam rules out these causes and ensures your strain is properly diagnosed and addressed.
Discomfort specifically triggered by reading usually points to one of a few causes: an uncorrected near or intermediate prescription (including early presbyopia), convergence insufficiency (where the eyes struggle to maintain alignment during sustained near work), or accommodative fatigue (where the focusing system tires quickly). All of these are identifiable through testing and treatable with the right approach.
If your prescription is the primary cause of your fatigue, then yes — updated glasses or a lens type better suited to your visual tasks (such as computer-optimized lenses) will likely provide significant relief. If a binocular vision issue or dry eye is the primary driver, glasses alone may not fully resolve symptoms. Our evaluation determines which factors are at play so we recommend only what will actually help.
Book a comprehensive exam and get answers — not just eye drops.