What should I do if my eyes can only see clearly within 20 centimeters?
Oct 11, 2022
Source: Cainiu Health
Dr. Chen You
Introduction
Under normal circumstances, if a person can only see clearly within 20 centimeters, possible causes such as myopia, cataracts, or cystoid macular edema should be considered. Patients are advised to seek timely medical evaluation for accurate vision testing, identification of the underlying cause, and appropriate treatment—either medication or surgery—as directed by a physician. Additionally, it is recommended to maintain regular and balanced dietary habits, eat light meals, and avoid spicy or irritating foods in daily life.
Under normal circumstances, if a person can only see clearly within 20 centimeters, possible causes such as myopia, cataracts, or cystoid macular edema should be considered. It is recommended that patients seek timely medical evaluation for accurate visual acuity testing, identify the underlying cause, and follow the doctor's treatment plan, which may include optical correction, medication, or surgical intervention.
1. Myopia
Myopia is usually caused by poor reading and writing habits, genetic factors, malnutrition, and other reasons. Patients generally can see nearby objects clearly but have difficulty seeing distant objects. After medical evaluation, corrective measures such as wearing glasses or undergoing surgery can be chosen. Additionally, avoiding prolonged use of electronic devices and minimizing late-night activities can effectively prevent or control the rapid progression of myopia.
2. Cataracts
Cataracts can result from aging, long-term medication use, or physical and chemical injuries. Common symptoms include refractive changes, decreased vision, double vision, and glare. In the early stages, patients may be advised by doctors to use eye drops such as aniodipide solution or phacolysin solution to alleviate symptoms. However, surgery remains the only effective treatment for cataracts. Cataract surgery is a common ophthalmic procedure aimed at removing the cloudy natural lens and implanting a clear artificial intraocular lens.
3. Cystoid Macular Edema
Cystoid macular edema is associated with various factors such as retinitis pigmentosa and disruption of the blood-aqueous barrier. It commonly presents with gradually declining vision, halos around lights, blurred vision, and distorted images, and may lead to complications such as macular holes. Diagnosis typically requires tests including fundus fluorescein angiography and optical coherence tomography. Patients should follow medical advice and take medications such as acetazolamide tablets or indomethacin enteric-coated tablets for treatment.
