Myopia (Nearsightedness) – Symptoms, Causes, and Treatment

Overview

Your interest in the topic of nearsightedness, medically known as myopia, is understandable, as this vision disorder is widespread. In myopia, the focus of incoming light falls in front of the retina, causing distant objects to appear blurry. The causes of nearsightedness can be varied, including genetic predispositions or environmental influences like intensive close work. To improve visual quality, wearing glasses with appropriately crafted lenses is a common solution. These correct the light path, resulting in a sharp image on the retina. It is important to have regular eye examinations to determine the appropriate vision aid and maintain eye health.

What is Nearsightedness (Myopia)?

Nearsightedness, also known as myopia, is a common vision disorder where people can see nearby objects clearly, while distant objects appear blurry. This condition arises when the eye is too long or the cornea, the clear front surface of the eye, is too curved. As a result, the light entering the eye is not correctly focused on the retina but instead in front of it. The retina is the light-sensitive layer at the back of the eye responsible for converting incoming light into nerve signals, which are then transmitted to the brain.

Nearsightedness is a form of refractive error that affects the quality of distance vision and is often influenced by genetic factors, although environmental factors such as intensive close work can also play a role. People with myopia often struggle to recognize road signs, watch TV or screens from a regular distance, or see faces clearly from afar.

The Severity Levels of Nearsightedness:

• Mild Myopia: < -3.00 Diopters
• Moderate Myopia: -3.00 to -6.00 Diopters
• Severe Myopia: -6.00 to -9.00 Diopters
• Extreme Myopia: > -9.00 Diopters

Causes of Nearsightedness (Myopia)

 

The causes of myopia are varied, involving both genetic and environmental factors. The primary cause of myopia is a mismatch between the eye’s refractive power and its axial length, causing images to be focused in front of the retina instead of directly on it.

Here are some of the well-known causes and risk factors:

1. Genetics: Nearsightedness has a strong genetic component. If both parents are nearsighted, the likelihood of their children being nearsighted is higher. Heredity plays a crucial role in the development of myopia.
2. Environmental Factors: Environmental factors such as limited time spent outdoors and extended near tasks like reading or prolonged use of smartphones and computers may increase the risk of developing or worsening myopia. Studies suggest that daylight and viewing distant objects are important for eye development and can reduce the risk of myopia.
3. Education Level: There is evidence that people with higher educational levels have a higher tendency to develop nearsightedness. This could be due to longer reading times and more intensive close work during education.
4. Lifestyle: A lifestyle that involves little time outdoors and mainly focuses on close-up activities such as reading, writing, or using electronic devices can increase the risk of nearsightedness.
5. Age: Nearsightedness often develops in childhood or adolescence and can progress with the growth of the eye. Myopia can also develop in adulthood, especially due to intensive close-up work.
6. Biological Factors: An excessive length of the eyeball or too strong refractive power of the eye lens and cornea can cause the image projected onto the retina to be blurry. These anatomical peculiarities are crucial for the development of nearsightedness.

To diagnose nearsightedness and provide appropriate correction recommendations, eye doctors conduct comprehensive eye examinations that include vision tests, eye health checks, and measurements of the eyes. The insights into the causes of myopia have also led to the development of prevention strategies, such as encouraging more outdoor time for children to reduce the risk of developing myopia.

Symptoms of Nearsightedness (Myopia)

The symptoms of nearsightedness (myopia) can vary in severity depending on the extent of the condition. The most common symptoms include:

1. Blurred Vision when Viewing Distant Objects: This is the main characteristic of myopia. People with nearsightedness can see nearby objects clearly but have difficulty seeing objects in the distance sharply.
2. The Need to Squint to See better: People with myopia often squint to see distant objects clearly.
3. Eye Strain: Long-term attempts to focus on blurry objects can lead to a feeling of strain or fatigue in the eyes.
4. Headaches: Eye strain from nearsightedness can also cause headaches, especially after long periods of reading, writing, or using electronic devices.
5. Difficulty for Driving, Especially at Night: Nearsightedness can make it hard to drive, particularly at night, as it becomes difficult to identify road signs from a distance or to see in dim light.
6. The Need to Hold Books or Objects Closer to the Eyes: Individuals with myopia may also hold books or screens closer to their eyes to read clearly.

If you experience these symptoms, it’s important to see an optometrist or eye doctor. They can make an accurate diagnosis and prescribe appropriate vision aids such as glasses, contact lenses, or eye laser treatments to correct vision.

Diagnosing Myopia

Myopia is usually diagnosed through a comprehensive eye exam performed by an eye care professional. During this examination, various tests and procedures are used to assess the extent of nearsightedness and the overall condition of the eyes.

Here are some of the main components of the diagnosis:

• Visual Acuity Test: A common test for myopia is the visual acuity test, where the person reads letters or symbols from a chart at various distances to evaluate their ability to see far away.
• Refraction Test: Using a device called a phoropter, the eye’s ability to focus light correctly on the retina is tested. The doctor will place different lenses in front of the eyes to determine which one provides the sharpest vision.
• Slit-Lamp Examination: A slit lamp is used by the doctor to closely inspect the front structures of the eye, such as the cornea, iris, and lens, with high magnification.
• Intraocular Pressure Measurement: This test measures the pressure inside the eye and helps to rule out glaucoma, a condition associated with increased intraocular pressure that can impair vision.
• Fundoscopy: By dilating (widening) the pupils, the doctor can examine the back of the eye, including the retina and optic nerve. This is important for ruling out or identifying retinal diseases often associated with myopia.
• Axial Length Measurement: In cases of higher myopia, the length of the eyeball can also be measured, as a longer axial length correlates with higher degrees of myopia.

Based on the results of these tests, the eye doctor or optometrist can determine the presence and extent of nearsightedness and recommend appropriate corrections, such as glasses or contact lenses. In some cases, surgical correction, such as LASIK, may also be considered.

Improving Nearsightedness: Treatment Options for Myopia

When it comes to nearsightedness (myopia), there are several treatment options aimed at improving distance vision. The choice of treatment depends on various factors, including the degree of myopia, the individual’s lifestyle, and personal preferences. Here are the most common treatment methods:

• Eyeglasses
• Contact Lenses
• Laser eye surgery
• Fakik IOLs

Eyeglasses

Description: The simplest and most common method for correcting nearsightedness.

Function: Eyeglass lenses correct the refractive error by bending the light so that it focuses correctly on the retina.

To correct this refractive error, minus diopter lenses are used. Concave lenses help scatter light and reduce the image size, redirecting the focus onto the retina, which creates a clear image. Minus diopter lenses balance the eye’s refractive power, which is too strong in myopia. This enables individuals to see their surroundings clearly again, significantly improving their quality of life.

Contact Lenses

• Description: Contact lenses are a widely favored alternative to glasses, offering a discreet and convenient solution for vision correction. These tiny, shaped lenses are positioned directly on the eye’s surface. Contact lenses come in different types, such as soft or rigid gas-permeable, to suit various visual and comfort needs. They offer a wider field of vision and are particularly useful for those with an active lifestyle or who prefer not to wear glasses.
• Function: Contact lenses work by refocusing light rays directly onto the retina, thus correcting nearsightedness. In contrast to glasses that sit slightly away from the eyes, contact lenses are placed directly on the cornea. This proximity allows them to provide a more natural vision correction, minimizing the distortion and peripheral aberrations sometimes experienced with glasses. The lenses alter the way light enters the eye, ensuring it focuses correctly on the retina to produce clear and sharp images of distant objects. They can be custom-fitted to match the unique shape and prescription needs of each eye, offering a highly personalized vision correction solution.

Laser Eye Surgery for Myopia

For long-term solutions, laser eye treatments like Smile PRO, FemtoLASIK, LASEK, or PRK can be considered, where the cornea is reshaped with a laser.

Laser eye treatments are a common and effective way to correct myopia. Here are the most common types of laser treatments available for people with myopia:

LASIK / FemtoLASIK (Laser-Assisted In Situ Keratomileusis)

• Description: In the LASIK / FemtoLASIK method, a precise cut is made to create a thin corneal flap, which is then lifted so the laser can reshape the underlying stromal tissue. These treatments modify the cornea’s refractive ability to enhance vision clarity.
• Advantages: Quick recovery, minimal pain, and immediate improvement in vision are possible.
• Disadvantages: Risks such as dry eyes, light sensitivity, and rare complications like ectasia (thinning and bulging of the cornea) can occur.

PRK (Photorefractive Keratectomy)

• Description: The top layer of the cornea, the epithelium, is removed to treat the underlying area with the laser. The epithelium naturally heals after the treatment.
• Advantages: Suitable for individuals with thinner corneas since no flap is created.
• Disadvantages: Longer recovery time, pain, and discomfort, slower vision improvement, risk of scarring, temporary or permanent dry eyes, light sensitivity, and visual disturbances.

LASEK (Laser Epithelial Keratomileusis)

• Description: Similar to PRK, but the epithelium is replaced on the cornea after the laser treatment, which can aid healing.
• Advantages: Can be suitable for people with thinner corneas or for professions involving physical activity.
• Disadvantages: Similar to PRK.

SMILE (Small Incision Lenticule Extraction): SMILE Pro, Relex SMILE

• Description: A small, lens-shaped portion of the cornea (lenticule) is removed via a minimally invasive incision using a precise laser.
• Advantages:  Advantages include its suitability for people with thinner corneas, as there is no need for creating a corneal flap. Lower risk of dry eyes compared to LASIK.
• Disadvantages: None noted.

Cost of Laser Eye Surgery for Myopia

The cost of laser eye treatment to correct myopia can vary significantly depending on several factors. In Germany, the average cost of a laser eye surgery to correct myopia typically ranges between €1,250 and €2,500 per eye. Several factors influence the price range of vision correction procedures.

One of the main factors is the choice of clinic. Reputable clinics using modern technologies and having an experienced team often charge higher prices. The experience and qualifications of the surgeon are also crucial. Surgeons with extensive experience and high success rates may charge higher fees, which usually reflect better treatment outcomes and higher patient satisfaction.

The technology used plays another important role. More advanced laser technologies offering more precise and safer results are often more expensive. The type of laser and associated techniques can also impact the overall cost.

In addition to surgical techniques, pre- and post-operative care are significant cost factors. Thorough evaluations and consultations are crucial before surgery to confirm that the patient is a suitable candidate for the procedure. These pre-surgery exams and intensive post-surgery care, which includes regular follow-up examinations and potential touch-up treatments, can further increase the overall cost.

Individual needs and the specific health condition of the patient can also influence the cost. Some patients may need additional treatments or specialized procedures to get the desired results.

It’s advised to explore different clinics and carefully compare their offerings. A comprehensive consultation with the surgeon is essential to find the best and most cost-effective option. The cost, quality of treatment, and experience of the medical staff should be considered to ensure an optimal outcome.

Choosing the Right Method

When choosing a treatment method for nearsightedness, several factors similar to those for farsightedness should be considered, but with their specific nuances:

• Degree of Myopia: Higher myopia may require stronger optical correction, and at a certain degree, specific types of contact lenses or surgical options may be suggested.
• Age of the Patient: Particularly in young people, the degree of myopia may still change, so less permanent solutions like glasses or soft contact lenses may sometimes be preferred.
• Lifestyle: For individuals involved in activities where glasses or contacts may be inconvenient, such as sports, surgical correction might be a preferred choice.
• Overall Eye Health: Some eye conditions can limit the use of contact lenses or affect the suitability for surgical procedures.
• Personal Preferences: Some people may prefer to avoid wearing glasses or find contact lenses uncomfortable, impacting their decision.
• Cost and Insurance: Costs and insurance coverage also play a significant role, especially since many surgical procedures are not covered by insurance.
• Risk Tolerance: Risk tolerance is another consideration, as some treatments, especially surgeries, involve potential risks.
• Long-Term Considerations: When opting for permanent correction like surgical treatment, it’s important to consider how it might affect the eyes over time.
• Professional Advice: Professional consultation is crucial to understand the pros and cons of each option and make an informed decision.

Ultimately, the optimal method depends on a combination of these factors and should be discussed individually with an eye specialist.

Tips for Preventing Myopia

To minimize the risk of developing nearsightedness, it is essential to pay attention to preventive measures. Regular eye examinations are crucial for early detection of myopia. Taking breaks from close-up tasks and using adequate lighting while reading can improve eye health. Spending time outdoors contributes to myopia prevention, as natural light positively affects eye development. It is also advisable to limit the use of digital devices and incorporate eye exercises to strengthen the eye muscles. A vitamin-rich diet supports overall eye health. Paying attention to these factors can help maintain long-term vision.

Managing Myopia in Daily Life

Proper vision aids are essential for managing myopia in everyday life. Glasses or contact lenses, individually adjusted by an eye doctor or optician, can significantly improve vision. Regular eye exams are important for detecting changes in vision and adjusting any vision correction aids as necessary.

Additionally, people with myopia should ensure good lighting to avoid straining their eyes. When focusing on close tasks for extended periods, such as reading or working on a computer, it is recommended to take regular breaks to rest the eyes. UV protection through sunglasses is also advisable to protect the eyes and reduce the risk of further vision problems.

Myopia in Children and Adolescents

Myopia, also known as nearsightedness, is a common vision disorder in children and adolescents, characterized by difficulty seeing distant objects clearly while near objects are seen clearly.

Nearsightedness occurs when the eye is too long or the cornea curves too much, causing images to focus in front of the retina rather than on it.

The increasing prevalence of myopia in this age group is concerning and is often associated with a combination of genetic factors and environmental influences, such as increased close work like reading and the use of digital devices, as well as a lack of daylight exposure. Preventive measures and treatment approaches are therefore crucial to slow the progression of myopia and minimize the associated risks for further eye diseases.

When to Consult an Eye Doctor

You should consult an eye doctor if you notice changes in your vision, such as deteriorating sharpness, blurred vision, or difficulty reading. Routine eye check-ups are important for managing known eye diseases like glaucoma or diabetic retinopathy. If you experience symptoms like eye pain, sensitivity to light, double vision, or sudden changes in vision, it’s crucial to consult a specialist as soon as possible. Preventive examinations are also important, especially if there are known eye diseases in your family or if you have high eye strain due to your profession. Early diagnosis and treatment can be crucial for maintaining long-term eye health.

Choosing an affordable price plays a crucial role in deciding for laser eye surgery to correct myopia. As Lasikwelt Laser Center, we offer not only very competitive prices but also flexible financing options for your treatment. We understand that cost is an important factor for our patients, and we are committed to providing high-quality vision corrections at a price accessible to everyone. With our customized financing options, you can easily distribute the cost of your treatment over a time frame that suits your budget.