Myopia symptoms often become obvious when road signs, television captions, classroom boards, or faces across the room begin to look blurry. You may squint to sharpen distant details while still seeing your phone, book, or other nearby objects clearly.
Myopia, also called nearsightedness, is one of the most common refractive errors. Glasses and contact lenses can provide clear vision, while procedures such as LASIK, PRK, EVO ICL, and refractive lens exchange may reduce dependence on corrective lenses for eligible adults.
Barnet Dulaney Perkins Eye Center provides comprehensive eye exams and several vision correction options for patients throughout Arizona. The right solution depends on your prescription, corneal health, natural lens, age, lifestyle, and long-term vision goals.
What Is Myopia?
Myopia is a refractive error that makes distant objects appear blurry. It usually occurs when the eye grows too long from front to back or when the shape of the cornea or natural lens causes light to focus incorrectly.
In an eye without myopia, incoming light focuses on the retina, the light-sensitive tissue at the back of the eye. In a myopic eye, light focuses in front of the retina. This creates clear or relatively clear near vision but blurred distance vision.
Myopia commonly begins during childhood and may continue changing through the teenage years and early adulthood. Some adults also notice prescription changes later due to lens changes, medical conditions, or other eye health concerns.
Common Myopia Symptoms
Myopia symptoms can range from barely noticeable blur to severe difficulty seeing at a distance.
Common signs include:
- Blurry road signs or distant objects
- Squinting to see more clearly
- Moving closer to televisions or presentation screens
- Trouble recognizing faces from across a room
- Eye strain or tired eyes
- Headaches in some patients
- Difficulty driving, especially at night
- Frequent glasses or contact lens prescription changes
Mild myopia may cause a few symptoms. A comprehensive eye exam can identify refractive errors and determine whether cataracts, dry eye, retinal disease, or another condition also contributes to blurred vision.
Myopia Compared With Other Refractive Errors
Several refractive errors cause blurry vision, but they affect focus differently.
| Refractive Error | Typical Vision Pattern |
|---|---|
| Myopia | Distant objects appear blurry |
| Hyperopia | Near vision may be blurry or require extra focusing effort |
| Astigmatism | Vision may appear blurry or distorted at near and far distances |
| Presbyopia | Near focusing becomes harder with age, usually after the mid-40s |
Myopia can occur alongside astigmatism and presbyopia. For example, an adult may be nearsighted and still develop age-related difficulty reading small print. Presbyopia results from reduced flexibility of the natural lens and eventually affects nearly everyone as they age.
What Causes Myopia?
Myopia usually develops through a combination of eye growth, genetics, and environmental influences.
You may have a higher likelihood of myopia when one or both parents are nearsighted. Myopia most often begins between ages 6 and 14, and children who spend more time outdoors appear less likely to develop it, although researchers continue studying why.
Prolonged near work and screen use have been associated with myopia development and progression in children, but it is misleading to claim that phones or computers alone directly cause myopia. Screen-related blur in adults may also result from dry eye, reduced blinking, digital eye strain, or focusing fatigue rather than a permanent change in prescription.
Simple, High, and Pathologic Myopia
Doctors may describe myopia based on prescription strength and whether structural changes affect the eye.
Simple Myopia
Simple myopia causes distance blur without the degenerative changes associated with pathologic myopia. Glasses, contacts, or vision correction surgery may help, depending on age and candidacy.
High Myopia
High myopia generally refers to a more severe nearsighted prescription, often around -6.00 diopters or greater. People with high myopia may face a higher risk of retinal tears, retinal detachment, glaucoma, cataracts, and myopic macular changes.
A stronger prescription does not mean these complications will occur, but it makes regular dilated eye examinations especially important.
Pathologic Myopia
Pathologic or degenerative myopia involves progressive structural changes that often affect the retina, choroid, sclera, or macula. It can cause distorted central vision, blind spots, or permanent vision loss.
New flashes, a sudden increase in floaters, a curtain or shadow in the vision, or sudden vision loss require prompt medical attention because these symptoms may signal a retinal tear or detachment.
Glasses and Contact Lenses
Prescription glasses provide the simplest and least invasive way to correct myopia. Patients may use glasses full-time, mainly for driving or distance activities, or for selected tasks.
Contact lenses can provide a wider field of vision and may work well for sports or active lifestyles. However, they require careful hygiene and may become uncomfortable when dry eye, allergies, or prolonged screen use affect the ocular surface.
Barnet Dulaney Perkins Eye Center optical teams can help patients compare eyeglasses and contact lens options based on prescription, comfort, and daily activities.
Can LASIK Correct Myopia?
LASIK eye surgery reshapes the cornea beneath a thin flap so incoming light focuses more precisely on the retina. It may reduce dependence on glasses or contacts for adults with stable prescriptions, suitable corneal thickness, healthy eyes, and realistic expectations.
LASIK permanently changes the corneal shape treated during surgery, but it does not stop future age-related changes such as presbyopia or cataracts. Some patients may still need reading glasses or additional correction later in life.
Can PRK Correct Myopia?
PRK vision correction also reshapes the cornea but does not create a LASIK flap. The surgeon removes the thin surface layer, called the epithelium, before applying the laser. The epithelium then grows back during recovery.
PRK may be considered when corneal thickness, occupational risks, sports, or other factors make a flap-free procedure preferable. Recovery usually takes longer than LASIK because the surface layer must heal.
EVO ICL for Moderate or High Myopia
EVO ICL places a prescription lens behind the iris and in front of the natural lens. It corrects nearsightedness with or without eligible astigmatism without removing corneal tissue.
EVO ICL may appeal to patients with higher prescriptions, thin corneas, or dry eye concerns. In November 2025, the FDA expanded the indicated age range for EVO/EVO+ ICL and toric ICL from ages 21–45 to ages 21–60. Individual candidacy still depends on prescription, anterior chamber depth, drainage-angle anatomy, corneal endothelial cell count, natural-lens health, and other clinical findings.
Patients over 40 should also understand that EVO ICL does not correct presbyopia or prevent future cataracts. The natural lens remains inside the eye.
Refractive Lens Exchange
Refractive lens exchange, or RLE, removes the clear natural lens and replaces it with an artificial intraocular lens. The procedure resembles cataract surgery, but it is performed before a visually significant cataract develops.
RLE may be considered when presbyopia, farsightedness, early natural-lens changes, or multiple focal-distance goals make lens replacement more appropriate than corneal surgery or EVO ICL.
Because removing the natural lens is permanent, the decision requires a careful discussion of benefits, limitations, retinal health, lens choices, and the patient’s stage of life.
Comparing Myopia Treatment Options
| Option | How It Corrects Vision | Important Consideration |
|---|---|---|
| Glasses | Refocus light using external lenses | Simple, adjustable, and noninvasive |
| Contact lenses | Refocus the light directly on the eye | Require proper fit, hygiene, and tear-film comfort |
| LASIK | Reshapes the cornea beneath a flap | Requires suitable corneal thickness and health |
| PRK | Reshapes the corneal surface | Flap-free, with a longer surface-healing period |
| EVO ICL | Adds an internal prescription lens | Preserves the cornea and natural lens |
| RLE | Replaces the natural lens | May better address presbyopia or lens-related changes |
No procedure is automatically best because the prescription is high or the patient wants to be free of glasses. Barnet Dulaney Perkins Eye Center evaluates the cornea, tear film, retina, natural lens, prescription stability, health history, and lifestyle before recommending a treatment.
Find the Right Treatment for Nearsightedness
Myopia is common, but its effects and treatment options vary widely. A mild prescription corrected with glasses is very different from high myopia that requires ongoing retinal monitoring or a surgical consultation.
Barnet Dulaney Perkins Eye Center offers glasses, contact lenses, LASIK, PRK, EVO ICL, and refractive lens exchange across Arizona. Request a free vision correction consultation to learn which options fit your eyes, prescription, and vision goals.