Ho Optometrist

Your Local Optometrist from 怡保……Ipoh….. Perak, Malaysia

NO GLARE – POLARIZED LENSES

Have you ever wondered how does a pair of Polarized Sunglasses work?

Well below are some information that shows how it work…………

GLARE CONTROL

The first difference when you put on a Polarized lenses is GLARE CONTROL.

Glare knows no season so its  recommend glare protective eyewear to all patients all year round. This top quality sunwear or outdoor eyewear protects patients from the more troublesome types of glare that is so annoying that makes one squint or even put a hand up as a shelter, worst still closes your eyes or turn away.

Many lenses in the market such as medium to dark tints and photochromics can help with these. However, only polarized lenses has this amazing ability that can eliminate  blinding glare by

absorbing sunlight reflecting horizontally off

water, glass, snow or sand. Light is horizontally reflected when it hits flat surfaces.

POLARIZING TECHNOLOGY

Crystals in the film embedded in polarized lenses are arranged to create a vertical polarizing filter that absorbs the blinding horizontal rays letting only the useful light through.

Polarized lenses improve contrast and enhance the visibility of all colors.

Polarized lenses provide 100 percent protection from harmful UVA and UVB rays.

POLARIZING PEARLS

Verify the axis of a polarizing Rx lens by using a plano polarized lens held with its polarizing axis vertical (at 90 degrees). If the Rx lens’ polarizing axis is correct (at 180 degrees), the two polarizers when crossed at 90 degrees will be black.

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World Sight Day 2012

World Sight Day

11 October 2012

 

World Sight Day is an annual day of awareness to focus global attention on blindness, visual impairment and rehabilitation of the visually impaired held on the second Thursday in October.

World Sight Day is observed around the world by all partners involved in preventing visual impairment or restoring sight.  It is also the main advocacy event for the prevention of blindness and for “Vision 2020: The Right to Sight”, a global effort to prevent blindness created by WHO and the International Agency for the Prevention of Blindness.

World Sight Day is a global event that focuses on bringing attention on blindness and vision impairment. It is observed on the second Thursday of October each year.

What do people do?

The World Health Organization (WHO), which is the UN’s directing and coordinating authority for health, and the International Agency for the Prevention of Blindness (IAPB) are actively involved in coordinating events and activities for World Sight Day. Associations such as Lions Clubs International have also been actively involved in promoting the day on an annual basis for many years. Many communities, associations, and non-government organizations work together with WHO and IAPB to promote the day for the following purposes:

  • To raise public awareness of blindness and vision impairment as major international public health issues.
  • To influence governments, particularly health ministers, to participate in and designate funds for national blindness prevention programs.
  • To educate target audiences about blindness prevention, about VISION 2020 and its activities, and to generate support for VISION 2020 program activities.

Some people plant trees to commemorate World Sight Day and while others submit a photo for an international photo montage that focuses on the theme of blindness. Other activities include taking part in awareness-raising walks or distributing and displaying posters, bookmarks, booklets and other forms of information the raise awareness about preventable blindness.

Public life

World Sight Day is a global observance but it is not a nationwide public holiday.

Background

The world’s population is ageing and people are living longer but blindness from chronic conditions is also rising, according to WHO. About 80 percent of the world’s 45 million blind people are aged over 50 years. About 90 percent of blind people live in low-income countries, where older people, especially older women, face barriers to getting the necessary eye health care. Yet, many age-related conditions leading to blindness – such as cataract, refractive error and glaucoma – can be easily and cheaply treated or cured. Timely intervention can often delay or reduce their effects on vision.

Lions Clubs International partnered with blindness prevention organizations worldwide to commemorate the first World Sight Day on October 8, 1998. This event was later integrated into VISION 2020, a global initiative that the IAPB coordinates. This initiative is a joint program between WHO and the IAPB. It involves non-government organizations, and professional associations, as well as eye care institutions and corporations.

http://www.who.int/mediacentre/events/annual/world_sight_day/en/index.html

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What is World Sight Day?

World Sight Day: 10 October

Eighty percent of all cases of blindness can be prevented or treated; the right to sight can and must be fulfilled

Geneva, 10 October 2002 –An estimated 180 million people world-wide are visually disabled. Of those, between 40 and 45 million persons are blind. Due to growing populations and ageing, these numbers are expected to double by the year 2020 making a colossal human tragedy even worse, stalling development and denying a basic human right.

World Sight Day is an annual event focusing on the problem of global blindness; it aims to raise public awareness around the world about the prevention and treatment of loss of vision. The event, taking place this year on 10 October 2002, will draw attention to the right to sight. The day will focus on governments’ pledges to ensure increased access to health services in relation to both prevention and treatment of eye conditions. Providing access to eye care, which reduces the magnitude of avoidable blindness, is part of the obligation under the right to the highest attainable standard of health.

Up to 80% of cases of blindness are avoidable, either resulting from preventable conditions (20%) or being treatable (60%) so that sight is restored. Prevention and treatment of vision loss are among the most cost-effective and successful of all health interventions. These interventions include: cataract surgery to cure this eye disease related to ageing; prevention of trachoma; provision of the drug ivermectin for the treatment of the infectious disease river blindness; immunization against measles; provision of vitamin A supplements for the prevention of childhood blindness; and provision of eyeglasses.

Every five seconds one person in the world goes blind. One child goes blind every minute. It is estimated that over seven million people become blind every year.

“VISION 2020: The Right to Sight” is a global initiative, launched in 1999, which aims to eliminate avoidable blindness by the year 2020. VISION 2020 programmes have been adopted in more than 40 countries.

“Partners, including governments, working together under VISION 2020 can make a major difference to the lives of millions of women, men and children already visually disabled or at risk. Preserving or restoring vision can be accomplished at little cost and can help lift people out of poverty. They can then contribute fully to their families, communities and national development,” said Dr Gro Harlem Brundtland, Director-General, World Health Organization (WHO). “Eye care, therefore, needs to be a priority,” she added, “and it’s not just an issue for health ministries.”

The causes of avoidable blindness are frequently associated with poverty and lack of access to quality eye care services. Avoidable blindness is more common in the poorest of the poor, women and marginalized populations. Ninety percent of the world’s blind people live in developing countries; there are at least 9 million blind people in India, six million in China and seven million in Africa. People who live in the developing world are five to ten times more likely to go blind than people who live in highly industrialized countries.

Therefore, VISION 2020 considers the elimination of preventable and curable blindness in the context of global development. Visual disability has far-reaching implications touching on all aspects of human development – social, economic and quality of life.

VISION 2020 is a joint initiative of WHO and the International Agency for the Prevention of Blindness (IAPB). They are joined by other UN agencies, governments, eye care organizations, health professionals, philanthropic institutions and individuals all working together in partnership to eliminate avoidable blindness.

Key strategies of VISION 2020 are: increasing awareness of this major public health issue; mobilizing additional resources (the annual spending on blindness prevention, $US 100 million, needs to double); controlling the major causes of avoidable blindness; training ophthalmologists and other personnel in eye care; and providing appropriate technology and infrastructure.

The annual World Sight Day provides an opportunity to become more aware and more committed to ensuring the right to sight for all. Hundreds of events will take place throughout the world to mark this occasion.

Source:

http://www.who.int/mediacentre/news/releases/pr79/en/

http://www.who.int/mediacentre/events/annual/world_sight_day/en/index.html

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10 Facts about Blindness

Fact 1

Worldwide, 285 million people are visually impaired due to various cases; 39 million of them are blind.

Fact 2

121 million are visually impaired because of uncorrected refractive errors (near-sightedness, far-sightedness or astigmatism). Almost all of them could have normal vision restored with eyeglasses, contact lenses or refractive surgery.

Fact 3

90% of visually impaired people live in low- and middle-income countries.

Fact 4

51% of all blindness is due to age-related cataract, the leading cause of blindness.

Fact 5

Cataract surgery and correction of refractive errors are among the most cost-effective health interventions.

Fact 6

Age-related causes of visual impairment and blindness are increasing, as is blindness due to uncontrolled diabetes.

Fact 7

Up to 80% of all blindness in adults is preventable or treatable. Among children, the major causes of avoidable blindness include cataract, retinopathy of prematurity (ROP), and Vitamin A deficiency.

Fact 8

Blindness caused by infectious diseases is decreasing globally due to public health action. Blinding trachoma affects 40 million people today, compared to 360 million in 1985.

Fact 9

Around 1.4 million children under age 15 are blind. Yet approximately half of all childhood blindness can be avoided by treating diseases early and by correcting abnormalities at birth such as cataract and glaucoma.

Fact 10

For decades, WHO has been working with global partners to eliminate the main causes of avoidable blindness, strengthening country-level efforts by providing technical assistance, monitoring and coordination.

Source: http://www.who.int/features/factfiles/blindness/en/index.html

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STYLE TRENDS ARE PERSONAL

Eyewear trends have evolved to an expression of personal style. How do you help customers to best determine their eyewear style?

Easy.

Create a personal experience for them and know the trends, quality and brands that drive patients to your door.

That means after they’ve had an eye exam they stay to select eyewear or better, new styles and trends drives them to purchase new eyewear between exams.

  • First, know what styles look good with what face shape, and learn about the customer’s likes, dislikes and the brands that resonate.
  • When defining style, use the descriptions, the actual words that each brand uses – it defines the way that they create their styles, and it provides ways for you to best meet consumer wants.

For example, what do the following say about individuals? “Luxury and professionalism… an array of colors, shapes and monograms to choose from,” “… upwardly mobile and possess a dedication to tradition,” “… an absolutely unconventional luxury product with bright colors and cutting-edge design…” In each case it describes a look and a style that helps individuals define themselves and identify with specific brands.

Do brands have the same meaning in attracting customers?

Recent studies suggest that if it were the brand alone – consumers may be more fickle. So, your participation is more critical than ever. In fact, that goes for your own brand as well. Be sure that you are as modern and contemporary as the brands you carry. Your brand, the brands that patients identify with and your professionalism creates style that the consumer prefers.

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WHY PATIENTS COMPLAIN ABOUT HAVING TO LIFT THEIR CHIN…

When patients complain that they need to lift their chin to read, it may suggest that the eyes of the EyeCare Practitioner, dotting pupil center, is consistently too low.

To measure the right height, two things are needed. First, the optometrist’s eyes must be at the same height as the patients. If not, the resulting ink dot will be too low if the optometrist’s eyes are lower. The reverse is also true – sit higher and the dot will be too high. It’s simple geometry. Look at this illustration. While it’s a bit exaggerated, see where the optometrist’s line of sight crosse the patient’s lens. Too low gets a dot that is too low, too high, fitting cross is too high.

Second, once you have a dot for reading seated, ask the patient to stand verify that the dot marked is also OK for walking around.

Third, remove the spectacles and advise the patient to wear it on again. Ensure that the dot is at the same location. If not, perform some minor adjustment to the frame for better fitting.

One all the above procedure has been done properly, you will most likely have a Happy Patient…..

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Testing Eyes for Autism Children….

Autism is a disorder of neural development characterized by impaired social interaction and communication, and by restricted and repetitive behavior. The diagnostic criteria require that symptoms become apparent before a child is three years old.

Most autistic children look like other kids, but do puzzling and disturbing things which are markedly different behaviors from those of typical children.

Autism affects information processing in the brain by altering how nerve cells and their synapse connect and organize; how this occurs is not well understood. It is one of three recognized disorders in the autism spectrum (ASDs), the other two being Asperger syndrome, which lacks delays in cognitive development and language, and pervasive developmental disorder, not otherwise specified (commonly abbreviated as PDD-NOS), which is diagnosed when the full set of criteria for autism or Asperger syndrome are not met.Autism has a strong genetic basis, although the genetics of autism are complex and it is unclear whether ASD is explained more by rare mutations, or by rare combinations of common genetic variants.

People used to think that autism was irreversible. The good news is that there are now a range of treatments that can be really helpful.

Autism is a spectrum of closely related disorders with a shared core of symptoms. Autism spectrum disorders appear in infancy and early childhood, causing delays in many basic areas of development such as learning to talk, play, and interact with others. In rare cases, autism is strongly associated with agents that cause birth defects. Controversies surround other proposed environmental causes, such as heavy metals, pesticides or childhood vaccines; the vaccine hypotheses are biologically implausible and lack convincing scientific evidence.

Parents usually notice signs in the first two years of their child’s life. The signs usually develop gradually, but some autistic children first develop more normally and then regress. Early behavioral or cognitive intervention can help autistic children gain self-care, social, and communication skills. Although there is no known cure, there have been reported cases of children who recovered. Not many children with autism live independently after reaching adulthood, though some become successful. An autistic culture has developed, with some individuals seeking a cure and others believing autism should be accepted as a difference and not treated as a disorder.

The signs and symptoms of autism vary widely, as do its effects. Some autistic children have only mild impairments, while others have more obstacles to overcome. However, every child on the autism spectrum has problems, at least to some degree, in the following three areas:

  • Communicating verbally and non-verbally
  • Relating to others and the world around them
  • Thinking and behaving flexibly

There are different opinions among doctors, parents, and experts about what causes autism and how best to treat it, and much that we still don’t know. But on one fact, everyone agrees: early and intensive intervention helps. For children at risk and children who show early signs, it can make all the difference.

http://www.autism.com/index.php/is_it_autism

http://www.deseretnews.com/article/705359795/Eye-test-may-provide-way-to-diagnose-autism-in-children.html?pg=all

http://www.autism-india.org/afa_aboutautism.html

http://en.wikipedia.org/wiki/Autism

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Computer Bad for Eyes? True or False……

Does your Computer Damages your Eyes???

Answer is, it depends…….The consensus is that intensive computer use will uncover, rather than cause, eye problems. Before you assume that you have an eye problem associated with your computer, first check the environmental conditions such as lighting levels and reflection, to make sure these are not forcing you to strain your eyes or other muscles to compensate.

As our eyes ages, focusing on small print will becomes more difficult. This is a condition known as “Presbyopia”.  Most people over the age of forty will start to develop this near reading difficulty problems. Letters will start to look fuzzy, so you start holding things further away and reading in low light gets difficult.

Below are a few tips to help reduce your eyes tiredness or eye straining issue while using computers:

1. Proper lighting:

Whether reading a book or an illuminated  digital screen, sufficient lighting helps minimize eye  strain.

2. Proper positioning:

Setting your computer in a position  so that you are looking downward several inches tends to be the most comfortable  for the eyes.  Also, try to minimize the amount of glare and reflections  from lights or windows picked up by your screen.

3. Blink:

It’s easy to get so caught up in what’s on our  monitors that we stare excessively and forget to blink normally. Yet, the tears  that wash over our eyes when blinking help prevent irritation and drying.   So, try to be aware of whether or not you’re blinking and blink frequently.

4. Take regular breaks: If possible take a break from the  screen every 20-30 minutes, looking at something more distant for half a minute  or so.  This shift in focus engages other eye muscles and gives the ones  focusing on your monitor some time to relax.

5. Enough Rest: Working people nowadays are getting less hours of sleep. One may even stare at the computer, laptop, Ipad or Smartphones before they sleep. Therefore, enough hours or rest and sleep is vital for not only our eyes health as well as overall.

For a full primary eye care examination, contact Ho Optometrist for an appointment. 05-25 9185

140, Jalan Sultan Idris Shah, 30000 Ipoh, Perak.

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Good and Bad Reading Postures

In reading, a book or newspaper should be held at a distance of from 30-45 cm away from the eyes. 

It is not advisable to hold reading materials too close to our eyes. Even though some may say it will looks better or bigger in the fact the object is closer. The nearer the object the eyes are concentrated upon, the greater the muscular effort necessary; so that by holding the book too near, the labor of reading is greatly increased, and the long persistence in such a habit is likely to produce weak eyes, and may, in some instances, lead to real near-sightedness.

When children are observed to have acquired this habit and cannot be persuaded out of it, they should always be taken to a physician skilled in the treatment of the eye for examination and advice.

A little attention at such a time may save them from a whole lifetime of trouble with their eyes. Of course, the larger the print, the farther it may be held from the eyes.

The position of the person with regard to the light should be so that the latter will fall upon the page he is reading, and not upon his eyes.

It is generally considered most convenient to have the light shine over the left shoulder, so that in turning the leaves of the book, the shadow of the hand upon the page is avoided. It is not always possible to do this, however, and, at the same time, to get plenty of light upon the page. When one finds himself compelled to face the light in reading, or in standing at a desk bookkeeping, he should always contrive to shade his eyes from a direct light. This may be done with a large eye shade projecting from the brow.

The illumination should always be sufficient. Nothing is more injurious to the eyes than reading by a poor light. Many persons strain their eyes by reading on into the twilight as long as they possibly can.

It is bad to gaze long at any source of light, and the brighter the source of light gazed at, the worse for the eyes, the sun being the worst of all. As a matter of fact, nothing short of sunlight is better than the incandescent electric light to read by or to work by.

Reading In Bed

As to reading while lying down in bed or on a lounge, it all depends on how the book is held. Best will be in such a position that the eyes do not have to be rolled down too far. The above comic illustrates well. Unless the head is raised very high by pillows, however, it will be found very fatiguing to hold the book high enough.

Many persons permanently weaken their eyes by reading to pass away the tedious hours during recovery from severe illness. The muscles of the eyes partake of the general weakness and are easily overtaxed. Persons in this condition may be read to, but should avoid the active use of their own eyes.

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How to fit soft contact lenses

Soft contact lens fitting characteristics are essential for a correctly fitting contact lens to give complete corneal coverage with proper centration to avoid the risk of contact lens complication.

Soft contact lens fitting can be assessed in relation to lens movement with:

  • Blinking
  • Upwards and lateral gaze
  • The ‘push-up’ test

This simple ‘push-up’ test is used to assess the speed of recovery when a soft lens is displaced vertically upwards with the eye in primary position (preferably be done by your eye care practitioner). A rapid recovery movement suggests a satisfactory fitting, whereas a slow recovery may be indicative of tightness.

Appearance of a correctly soft contact lens fitting – Diagram (A) shows the limits of acceptable movement and position for soft contact lenses.

Appearance of a tightly soft contact lens fitting – Diagram (B) indicates the lack of movement.

Appearance of a loose soft contact lens fitting – Diagram (C)  shows the excessive mobility of a loose fitting

The general principles for a good fitting are:

  • Good centration.
  • Complete corneal coverage.
  • Approximately 0.5mm of vertical movement on blinking in primary position.
  • Lag of up to 1mm on upwards gaze or lateral eye movements.
  • Rapid recovery on vertical displacement (push-up test).
  • Comfortable in all direction of gaze.
  • Good visual acuity.
  • Vision remains stable on blinking.
  • No irritation.

LOOK GOOD . SEE GOOD . FEEL GOOD

P.S.  A correctly fitted soft contact lens with just 0.5mm to 1mm movement in the eye, is important to ensure long hours wearing comfort and healthier eyes. Please do not take for granted on contact lens fitting!

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