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Nearsightedness (Myopia)

1 Learn

What is Nearsightedness?Sharon, New Zealand Rev

The outer layer of the eye (sclera) elongates from birth (17mm) up to the age of 20 (24mm). Within this time frame, further elongation can occur due to children continually working from near.

Continually looking at near objects keeps the eyes converged, causing the rectus medial is muscles used for convergence to be constantly contracted. This in turn creates excessive pressure on the rest of the eye causing it to elongate beyond the average of 24mm.

Being nearsighted means that the image of a distant object will fall in front of the retina causing the image to be blurry.  When viewing a near object with a myopic eye the lens does not need to accommodate because the image of a near object is already focused on the retina while keeping the ciliary muscles relaxed.

The degree of myopia is measured in diopters. When myopia exceeds minus six diopters it is considered high myopia. People with this condition are at greater risk for a detached retina and/or glaucoma.

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Psuedomyopia

Myopia can be developed in normal shaped eyes or exacerbated in myopic eyes by looking for prolonged periods of time at near objects. Due to the lens having to accommodate continuously, a strain in the ciliary muscles occurs, causing spasms.  Therefore, when looking at distant objects, these muscles are still contracting, causing the image to fall in front of the retina.

Understanding

How the eye works

The eyeball consists of three layers: sclera, choroid and retina.

1. The sclera is the thick outer layer of the eye, 4/5th of which is white and the rest is transparent. This transparent area, known as the cornea, allows light to enter the eye and is the the first stage of refraction (bending of light rays).

2. The choroid layer contains blood vessels designed to nourish the retina. The anterior (front) part is modified to form the iris. This is the coloured part of the eye, which has two sets of smooth muscles: radial and circular. The radial fibers which are responsible for dilation allow more light to enter the eye. The circular fibers which are responsible for constriction, let in less light and sharpen the image.

Another modified function of the choroid layer is the cillary body muscle that surrounds the edge of the lens, connected to the lens by suspensory ligaments. In a process known as accommodation, the lens is rounded when the cillary muscle contracts and flattens when it relaxes, enabling the eye to focus on objects at different distances.
Elizabeth, Maryland 23. The retina lines 2/3rd’s of the innermost layer of the eye. It contains the essential cells responsible for converting light rays into electrical signals (phototransduction) which are then sent to the brain for processing. These cells are known as photoreceptors and can be divided into rods and cones.

Each eye roughly contains 6 million cones, found mostly in the centre of the retina. This central area is otherwise know as the macula and allows us to see colour and fine detail. In our periphery we have 120 million rods, which are responsible for seeing movement and dim light.

The electrical signal created by phototransduction is sent via the optic nerve to the thalamus where unnecessary information is discarded.  It is then sent to the visual cortex located in the occipital lobe for initial processing, before being sent to other areas of the brain. The two separate images from each eye are not identical and are put together to create one single fused image, otherwise known as binocular vision.

 

Next step

2 Create

Vision ExercisesCaleb, USA

  • Distance Looking Eye Exercise

    This eye exercise can shorten the eyeball, thus projecting a clearer image of a distant object onto the retina. One possible reason for this could be that the rectus medilis muscle is now relaxed thereby reducing the strain on the eyeball, allowing it to shorten. Distance looking also helps in preventing retinal detachment for those with high myopia. Another benefit of distance looking is that the brain can learn how to decipher the image more clearly.

    With pseudomyopia, distance looking can relax the ciliary muscles of the lens, allowing the image to fall correctly on the retina once again.

  • Palming Eye Exercise

    This eye exercise is essential to vision improvement, as it rests and relaxes the eyes. It achieves this through allowing the optic nerve and retina to completely rest from any external light or activity. The palms touching your eye orbits also brings healing attention and energy to the eyes.

  • Sunning Eye Exercise

    The Sunning eye exercise accomplishes several important, related things. It reduces light sensitivity and thereby reduces the tendency to squint in bright light. It also causes the pupils to fully contract thereby creating sharper vision. At the same time this eye exercise stimulates the macula. Since the macula needs bright light to become fully active, the macula is underutilized if our eyes are not exposed to sunlight.

Body ExercisesHand Rotations Richard Web

Movement Exercises

  • Head Rotations

  • Shoulder Rotations

    Rotating the head and shoulders loosens your joints and relaxes the surrounding muscles, allowing more blood flow to the head and eyes. This increased blood flow brings more nourishment to the eyes, helps with the removal of waste and strengthens the vessels in the eye. This exercise improves eyesight by bringing better blood flow to the eyes.

Massage TechniquesBrandon, USA

  • Head Massage

  • Neck Massage

  • Face Massage

    Many people are surprised to hear that massage can improve eyesight. Massage brings more blood flow to the head. It also helps reduce the muscle tension created by using the facial muscles to see more clearly. This tension causes strain and reduced blood flow to the eyes. Reducing strain and increasing blood flow lead to better vision.

Mind Exercises

  • Breaking the Habit of Glasses

    Although glasses are a quick fix for making the world around you clearer, they also promote poor vision habits and create a large amount of eyestrain. This causes a slow deterioration of vision and an unnatural dependency on glasses. Furthermore, corrective lenses for farsightedness (hyperopia) and presbyopia concentrate the light unnaturally on the macula, potentially leading to damage. Besides, don’t we all really want to get rid of our glasses?

  • William Fuller shifting eye exercise with charts

    Keeping a Vision Journal

    The process of improving eyesight can be slow at times and improvements can easily be forgotten; journaling helps motivation and keeps you on track. The journal also creates a place where you can write about thoughts and feelings.

  • Relaxation

    Our eyesight is clearer when the eyes and the whole visual system are deeply relaxed. Unfortunately relaxation of the eyes is uncommon these days. This creates  eyestrain and leads to poor visual function. We need to take time to relax our eyes to provide the optimum environment for their good use.

 

Next step

3 Integrate

HOME

Distance Looking Eye Exercise

Look out a window as a short break from a household chore, looking as far as possible while having a meal, looking away from any close visual activity (reading, watching tv or talking to someone).

Palming Eye Exercise

Palming before sleep or first thing in the morning, a short palm as a break from continuously looking from near i.e TV or reading, palming whenever the eyes feel tired/strained.

Sunning Eye Exercise

Open a window from within the house and sun.

Head and Shoulder Rotations

Before sleep or first thing in the morning, bathroom habits ie whilst brushing teeth, showering etc, anytime whilst in the house, watching TV, whilst distance looking.

Head, Neck and Face Massage

Watching TV, whilst distance looking, bathroom habits.  before bed or first thing in morning.

Breaking the Habit of Glasses

Place glasses only where needed ie next to computer or TV, do not put glasses on bedside table so you don’t wear them first thing.

Vision Journal

Keep near by and add an observation when it arises, before bed i.e write out the observations of the day.

Relaxation

Palming, meditation, napping, distance looking, listen to music or audio book, self massage, having a bath, going for a walk.

WORK

Distance Looking Eye Exercise

Look out a window during your breaks, looking as far as possible while having lunch, looking away from any close visual activity.

Palming Eye Exercise

Palming just before work starts and just before going home, a short palm as a break from continuously looking from near, palming whenever the eyes feel tired/strained.

Sunning Eye Exercise

Try sunning just before and after work, go outside during breaks and sun, open a window from within the building and sun.

Head and Shoulder Rotations

Perform rotations: when on the phone, reading emails, facebook etc, before palming, whilst sunning and distance looking.

Head, Neck and Face Massage

During breaks, while performing other simple tasks,Breaking the Habit of Glasses – place glasses on only when essential, avoid contacts as they are more difficult to put on and off.

Vision Journal

Keep journal near by and make observations.

Relaxation

Make sure you take your breaks! palming, meditation, distance looking, listen to music or audio book, self massage, going for a walk.

TRANSIT

Distance Looking Eye Exercise

Look out a window during travel, if safe, look up into the distance whilst walking,  distance looking while waiting for public transit to arrive.

Palming Eye Exercise

During transit, if eyes become strained or tired whilst driving stop and palm.

Sunning Eye Exercise

While waiting for public transit to arrive, when going outside stop a sun briefly to help eyes adjust to the light.  slowly wean yourself from sunglasses

Head and Shoulder Rotations

Waiting for public transit to arrive, during travel, if driving stop for short breaks, whilst walking.

Head, Neck and Face Massage

Before and during travel, taking a break from driving,

Breaking the Habit of Glasses

if passenger carrying glasses in your pocket and only use when necessary, use pin hole glasses instead of prescription glasses.

Vision Journal

Make observations about your vision while in transit.

Relaxation

Palming, meditation, distance looking, listen to music or audio book, self massage.

COMPUTER

Distance Looking Eye Exercise

Look out a window during your breaks, looking as far as possible every 15 minutes.

Palming Eye Exercise

Palming just before and after working on the computer, a short palm as a break every hour, palming whenever the eyes feel tired/strained.

Sunning Eye Exercise

Try sunning just before and after computer use, go outside during breaks and sun, open a window from within the building and sun.

Head and Shoulder Rotations

Perform rotations anytime when on the computer, before palming, whilst sunning and distance looking.

Head, Neck and Face Massage

During breaks, while performing simple tasks on the computer,

Breaking the Habit of Glasses

Place glasses on only when essential, instead of wearing glasses try increasing font/page size,  avoid contacts as they are more difficult to put on and off, use pinholes instead of prescription glasses,

Vision Journal

Keep the journal close by and make observations.

Relaxation

Make sure you take  breaks from the computer! palming, distance looking, self massage, chair stretches, going for a walk.