Refractive Errors

Refractive errors occur when the eye cannot focus light correctly on the retina, resulting in blurry vision. The most common types include:

• ● Myopia (Nearsightedness): Difficulty seeing distant objects clearly.
• ● Hypermetropia (Farsightedness): Difficulty seeing close objects clearly.
• ● Astigmatism: Distorted or blurred vision at all distances due to an irregular cornea or lens.
• ● Presbyopia: Age-related difficulty focusing on near objects, usually after age 40.
• ● Excessive sunlight (UV exposure)

Refractive errors are extremely common, affecting millions worldwide. If untreated, they can lead to eye strain, headaches, and difficulty performing daily activities. Modern treatments can restore clear vision without affecting the eye’s health.

Refractive errors are caused by a mismatch between the shape of the eye and the focusing power of the cornea and lens. Other contributing factors include:

• ● Genetics (family history of vision problems)
• ● Excessive screen time or near work
• ● Age-related changes in the lens (presbyopia)
• ● Eye injury or surgery in some cases

Early detection through regular eye exams can prevent worsening vision and allow timely correction.

3. What are the symptoms of refractive errors?

• ● Blurry vision at near or distance
• ● Squinting to see clearly
• ● Frequent headaches or eye strain
• ● Difficulty reading or seeing road signs
• ● Fatigue after long periods of visual tasks

These symptoms may vary depending on the type and severity of the refractive error.