The Health June/July 2021 | Page 13

| Eye Care |

JUNE-JULY , 2021 | THE HEALTH

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on your vision , pupil reaction , and cornea shape
“ You need to be diagnosed carefully . Optometrists with appropriate instruments can diagnose you accurately on whether you have astigmatism or not .”
Contact lenses for astigmatism
Astigmatism cannot be cured and may even progress with age . But , it can be corrected using glasses with specialised lenses tailored according to one ’ s severity . And now , with the latest innovations and continuous research and development ( R & D ) from many multinational optical and eyewear companies , specialised contact lenses for astigmatism are also available .
Chan shared that contact lenses can achieve more as they can realign the cornea and be used at night to reshape your cornea again .
There are different modalities of contact lenses for astigmatism in the market depending on preferences , such as daily or bi-weekly disposable lenses , and severity ,
either harder contact lenses for severe astigmatism or softer contact lenses for less severe stigmatism .
He highlighted : “ Both Acuvue Moist and Acuvue Oasys contact lenses are exceptional for astigmatism correction . I recommend them to most of my patients and I ’ ve received positive feedback so far .
“ The Acuvue Moist Astigmatism lenses , which have a long-lasting cushion of moisture , are extremely comfortable , even for first time users .
“ The Acuvue Oasys Astigmatism lenses are silicon hydrogel-based lenses , which allow more oxygen to reach the cornea .” He added that both Acuvue lenses have an eye lid stabiliser design , which minimises shifting of the lenses and allows the wearers to have better stable vision all day long . They also provide UV protection .
Get lenses from professional practitioners
Chan emphasised that contact lenses should not be bought from just anywhere . They must be prescribed only after an accurate diagnosis by a qualified optometrist .
Sharing a patient ’ s experience , he said : “ Our practice was referred to see a 21-yearold woman , who had been wearing contact lenses since her teens and had complaints about slight blurry vision .”
Upon proper investigation and eye examination , it was found that she did not have optimum vision , especially during the second half of the day and suffered from headache .
“ We then prescribed her with new
Astigmatism can start from infancy . So , we usually advise that if you notice any peculiar habits or tilting of a young child ’ s head , as early as six months old , it is good to see an optometrist or ophthalmologist who specialises in children .”
– Datuk Murphy Chan
contact lenses which suited her condition . After putting it on , she agreed she had better vision .
“ She came back one week later , saying she could drive better and feels less tired after using the new lenses .”
“ When we talk about contact lenses for astigmatism or any other eye problems , it is not just about the clarity . We , as responsible practitioners , also emphasise the confidence that you ’ re getting from the correct and suitable contact lenses .”
“ So , please remember to go for your regular checks because what worked last year may not work this year ,” Chan advised .
Eyecon Optometry Network
Eyecon Optometry are equipped with the latest eye care equipment . This enables them to provide comprehensive eye test services such as clear vision , eye pressure , and eye health .
“ We believe in innovation because we believe everyone has their own style . For example , before new developments in eyewear , there was a limited choice of glasses . Today , you can customise the eyewear that you want according to your lifestyle .
“ We are also involved in research and trials conducted by multinational optical and eyewear companies .
Eyecon Optometry also owns a mobile vision ambulance that provides public education on eye health and essential screening services .
The latest venture at Mahkota Specialist Melaka aims to address the rising eye problems focusing on early prevention and correction among children . — The Health

Astigmatism explained

WITH A perfectly shaped round eyeball , the light enters , bends evenly and focuses on the retina , which gives you a clear and sharp view .
Astigmatism , on the other hand , is a condition whereby the eyeball shape is no longer perfectly round , when the cornea or lens is curved more steeply in one direction than in another .
When the curvature of the eyeball is stretched or curved , the light is refracted or bent in different directions , rather onto the retina directly , which results in blurred distance and near vision .
When the cornea has mismatched curves , then one has corneal astigmatism . Meanwhile , lenticular astigmatism is when the lens has
mismatched curves . Either type of astigmatism can cause blurred vision . Blurred vision may occur more in one direction , either horizontally , vertically or diagonally .
Causes and diagnosis
For most , astigmatism is present from birth . It may also develop after an eye injury , disease or surgery .
Astigmatism , however , isn ’ t caused or made worse by reading in poor light , sitting too close to the television or squinting .
It is advised to visit an eye care
specialist or optometrist when there are noticeable changes in one ’ s vision such as blurred or distorted vision , eye strain or tightness , headaches , difficulty with night vision and squinting .
With a comprehensive eye examination , eye specialists or optometrists can determine whether you have astigmatism and to what degree . They can then advise options to correct your vision .
Treatment
Almost all cases of astigmatism can
be corrected with glasses or contact lenses .
Eyeglass lenses and contact lenses make the light bend into your eye properly .
Contact lenses are available in a variety of types and styles , including disposable soft ; extended wear ; rigid , gas permeable ; and bifocal .
For normal level astigmatism , doctors or optometrists will probably prescribe special soft contact lenses , while for those with much severe astigmatism , they will be prescribed with a harder or rigid contact lenses . Orthokeratology is a procedure whereby one wears Ortho-K contact lenses while they sleep , and it reshapes the cornea .
There is also option for refractive surgery , whereby eye surgeon uses a laser beam to reshape the curves of the cornea , which corrects the refractive error . Refractive surgery improves vision and reduces the need for eyeglasses or contact lenses .
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