Patient's Complete Guide to Weak Eyesight
Overview of Weak Eyesight
Weak eyesight (کمزور بینائی or Nazar Ki Kamzori) is the decreased visual ability. It can be in two forms such as farsightedness and nearsightedness. Farsightedness is a condition in which distant objects appear clear but near objects may appear blurred. Nearsightedness is the opposite condition in which near objects are clear but a distant vision becomes blurry.
Signs and Symptoms of Weak Eyesight
Some common signs and symptoms of weak eyesight may include:
- Blurred close-up vision is known as hyperopia
- Having problems in seeing close and distant objects-a condition known as (astigmatism)
- Poor distance vision, or nearsightedness (myopia)
- Poor vision at night
- Difficulty in reading or working at a computer
- Eye strain or eye fatigue
- Increased difficulty adjusting from dark to light surroundings
- Double vision
- Frequent headaches
- Seeing halos around light
- Watery eyes
Types of Weak Eyesight
There are four types of weak eyesight:
- Myopia/Nearsightedness: Type of weak eyesight in which distant objects become blurry.
- Hyperopia/Farsightedness: A condition in which makes nearby objects look blurry
- Astigmatism: Type of weak eyesight in which both nearby and distant vision blurred.
- Presbyopia: A condition in which lenses become stiff that causes the blurriness of near vision. This is most common in older adults.
Causes of Weak Eyesight
There are several factors and medical conditions that can cause poor or weak eyesight. These may include:
- Excessive use of digital devices
- Exposure to the harsh environment
Some medical conditions that can cause poor eyesight may include:
- Amblyopia (lazy eye): A condition in which eyes can’t signal the brain. It can be a possible reason for weak eyesight.
- Presbyopia: A condition in which lenses become stiff that causes the blurriness of near vision.
- Molecular Degeneration: A condition in which the retina is damaged that affects its ability to focus image.
- Cataracts: An eye disease in which cloudiness is formed over the lens that makes the vision blur.
- Glaucoma: An eye condition in which the inside eyeball level of fluids is increased. This inserts the pressure on the optic nerve that causes poor eyesight.
- Genetics: Genetics can play a role in the occurrence of weak eyesight. But it can’t be the sole reason.
- Diabetic Retinopathy: It is a condition that affects diabetic patients. In diabetics, the blood vessels that supply blood to the retina have leaked that damage the retina and interfere with vision.
- Retinitis Pigmentosa: A condition that affects night vision. It is a genetic disorder that usually occurs during childhood.
- Retinal Detachment: An eye disease in which the retina is separated from the underlying membrane. It can cause total loss of vision.
Risk Factors of Weak Eyesight
There are some factors that increase the risk of weak eyesight, including:
- Family history
- Prolonged use of computers, mobiles and other electronic devices
- Reading in dim light
You can prevent the weakness of eyesight by the following measures:
- Keep screen time-limited
- Blink eyes repeatedly enough
- Keep the computer screen at a safe distance of at least 20-16 inches away
- Use anti-glare screens
- Keep screens clear of dust and fingerprints to reduce glare
- Use artificial tears to protect the eyes
- Eat a healthy diet that protects the eyes
- Relax tired eyes with help of a warm washcloth
The ophthalmologist diagnoses the weak eyesight by inquiring about symptoms and family history. The eye specialist may ask about any difficulties in daily routine activities such as:
- Working on computer
- Ability to recognize faces
- Kitching activities
- Knitting activities
- Watching TV
Chart Exam: The doctor asks the patient to read letters on charts too close or far away.
Treatment of Weak Eyesight | When to Consult a Doctor
The doctor usually recommends the following ways to correct the eyesight problems, such as:
- Eye Glasses: Eyeglasses are the simplest way to solve the weak eyesight problem. Eyeglasses are prescribed according to a patient’s requirement.
- Contact Lenses: Contacts stick to the lens of the eye and improve eyesight.
- Surgery: Laser eye surgery is performed to fix the retina. An eye specialist can tell if the surgery is required or not.
If you experience any signs and symptoms of weak eyesight that are persistent and worrisome seek medical care as soon as possible.