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Orthokeratology

Jun 02, 2021

What is Orthokeratology?

Orthokeratology (Ortho-K) is a non-surgical procedure using specially designed Rigid Gas Permeable (RGP) contact lenses to gently reshape the corneal to achieve correction after removal of the lens.

Suitable candidates for Ortho-K lenses are fitted with customized contact lenses that are worn at night while sleeping. It is similar as Orthodontics. It is somewhat like wearing braces to the eyes, but very gentle braces in the form of of specially designed lenses. Once the reshaping procedure has reached an optimum vision correction, daily wearing of Ortho-K lenses are required to maintain the proper corneal shape.

It is ideal for active individual who wants freedom from wearing glasses or daytime contact lenses – without undergoing surgery.

Ortho-K procedure is totally reversible, thus it is an excellent LASIK alternative for those who are reluctant or unable to undergo a surgical alteration of their cornea.

 

Who are the suitable candidates?

People with any age with low to moderate amounts of myopia (up to -6.00D) and astigmatism (up to -2.00D). High amount of myopic may be reduced, but not totally removed.

Young patients as young as seven to nine years old are excellent candidates and we assessed the suitability based on their maturity, hygiene and motivation.

It is extremely beneficial for people who have an active lifestyle and people who are working in dusty and dirty environments that has problem with the regular contact lenses.

Recent studies have also shown it is also beneficial to the school-aged children who often experience large increases in myopia yearly. In addition to eliminating the need of glasses or contact in the day, ortho-k may even arrest the rate of myopia progression.

 

What does the procedure involves?

Your Optometrist will begin by measuring the curvatures of your cornea using an instrument called Corneal Topographer – a painless procedure that takes about a few minutes and produces a topographical map of your eyes.

Your optometrist might use an in-office inventory of lenses for fitting y our eyes with Ortho-K lenses the same day corneal topographer measurements are taken, or may order custom ortho-k lenses for fitting at a later date. You may need a series of temporary lenses to reached desired prescription.

 

How Long Does Corneal reshaping takes?

Corneal reshaping for low to moderate myopia will generally takes 2 weeks or less, depending on cornea complexity. Noticeable results are often achieved after the first night of lens wear, and generally there will significant improvement within the first week.

 

Are there any risks involved with wearing Ortho-K lenses?

There is a small risk involved when any contact lenses are worn, It is not expected that the lenses will provide a greater risk than other contact lenses. There were no serious adverse events reported in the FDA clinical studies.

The most serious problems, including vision loss, usually arises from improper lens care and patient’s failure to strictly follow usage instructions and precautions.

 

How long will I have to replace my Ortho-K lenses?

Generally speaking, a pair of lenses will have to be replaced once a year. However, depending on factors such as protein build-up, condition of the lenses etc, the lenses may have to be replaced more frequently.

 

How Much does Ortho-K costs?

Fitting Ortho-K lenses takes more time than fitting a pair regular contact lenses. It requires a series of aftercare and potentially multiple sets of lenses. The cost of the programme starts from $2400 onwards, depending on prescription and complexity.

Discover more about Ortho-K lenses by clicking the link for detailed FAQs and insights!

 

Jordin’s Ortho-k Lens Experience:

 

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Email us with any questions and enquiries. We would be happy to answer to your questions and we’ll be in touch.




    Equipments

    Jun 03, 2021

    We Are Constantly Upgrading Our Diagnostic And Optical Dispensing Tools And Equipments To Keep Up With The Latest Technology, So That To Provide The Best Vision Solutions To Our Patients.

    Slit Lamp with Camera

    The slit lamp exam is usually performed during eye checkups. It helps to detect for any diseases or abnormalities in the anterior portion of the eye, which includes the eyelids, lashes, lens, conjunctiva, cornea, and iris. Using the slitlamp , we are able to pick up many eye disease such as cataract, conjunctivitis , keratitis, corneal abnormalities, keratoconus , uveitis etc.

    With the function of the inbuilt camera, we are able to document and save the images in our system for future references.

     

    Computerised Corneal Topographer (Medmont)

    Corneal topography, also known as photokeratoscopy or videokeratography, is a non-invasive medical imaging technique for mapping the surface curvature of the cornea, the outer structure of the eye. Medmont topographer is labelled as the gold standard for fitting specialty lenses, offers an exceptional accuracy of error of less than 2 microns. To put that into perspective, the average thickness of a human hair is 75 microns.

    The topographer are widely used in our practice for fitting of contact lenses especially specialty contact lenses eg Ortho-K lens & Keratoconus lens.

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    Non-Contact Tonometer

    Non contact tonometer is also known as the air puff test, which is a painless procedure where the puff of air will reveal the reading of the eye pressure (IOP)

    This test is used to check for glaucoma, an eye disease that can cause blindness by damaging the nerve in the back of the eye (optic nerve), where the eye pressure falls above the range.

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    Visuscout (Zeiss)

    Reliably detecting and monitoring retinal disorders is key to ensuring high-quality care and to maintaining the vision of your patients. As a mobile fundus camera, it is the perfect imaging companion.

    Visuscout is a used for checkups and documentation of retinal conditions such as diabetic retinopathy, glaucoma and AMD. We also collaborate with Singapore National Eye Center (SNEC) in the diagnostic and assessment of the fundus examination. Patients can greatly benefit from the ease of travelling and waiting time at the eye clinic for monitoring and screening by coming to our practice.

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    ZEISS IOL Master 500

    At My Eye Room, we prioritise our customer’s vision and eye health with state-of-the-art technology. We proudly feature the ZEISS IOL Master 500, a cutting-edge device that plays a pivotal role in our commitment to comprehensive eye care, especially in myopia management.

    The ZEISS IOL Master 500 is an instrument designed to provide precise measurements of ocular parameters. This includes axial length, corneal curvature, and anterior chamber depth. In the realm of myopia, early detection and effective management are paramount. As our eyeball elongates, the axial length increases which results in an increase in myopia. The IOL Master 500’s accuracy in measuring the axial length enable us to closely monitor myopia progression. This empowers us, Optometrists, to tailor interventions that address the specific needs of each patient, ultimately working to slow down or control myopia progression.

    The ZEISS IOL Master 500 is not only instrumental in myopia management, but also a key asset for orthokeratology (ortho-k). This advanced technology precisely maps the corneal surface, ensuring optimal design for ortho-k lenses. Ortho-k, a non-surgical approach to vision correction and myopia management, is made more effective and safe with the detailed measurements provided by the IOL Master 500.

     

    ZEISS I-Profiler Plus

    Introducing the ZEISS I-profiler Plus, featuring the innovative i.Scription technology, revolutionizing the way we address your unique visual needs. The Zeiss I-profiler Plus offers comprehensive measurements that go beyond traditional eye exams. With i.Scription technology, this advanced instrument analyzes the imperfections in your eyes, creating a customized map of your visual profile.

    This Ultra-high-definition mapping not only ensures the most accurate prescription for your glasses and contact lenses, but also allows us to detect subtle irregularities in your visual system. By leveraging i.Scription technology, our Optometrist can tailor your eye care with unmatched precision, addressing specific
    nuances that may impact your vision.

    At My Eye Room, we prioritise your visual comfort and clarity. The ZEISS I-Profiler Plus with i.Scription technology enables us to provide you with a uniquely customised prescription, enhancing the overall quality of your vision. Experience eye care at its finest with our commitment to combining cutting-edge technology and personalised attention.

    Glaucoma Screening

    Jun 04, 2021
    IOP, Slit Lamp Examination, Fundus Examination

    Glaucoma Screening – IOP, Slit Lamp Examination, Fundus Examination

    Full General Eye Examination

    Jun 04, 2021
    IOP, Slit Lamp Examination, CV Screening, Stereopsis, Fundus Examination

    Full General Eye Examination – IOP, Slit Lamp Examination, CV Screening, Stereopsis, Fundus Examination

    Myopia Management & Pediatric

    Jun 04, 2021

    Myopia Control

    Singapore is #1 statically in the world for the prevalence of childhood myopia. Up to 65% of children are myopic by the age of 12. This is an alarming figure, as these kids can potentially developing high myopia (ie more than -6.00 D), with an average progression of 0.75D per year.

    High Myopia are often associated with high risk of developing complications that would lead to reduce vision or blindness such as retinal detachment, Glaucoma and macular degeneration. Myopia is unfortunately a non-reversible phenomenon.

     

    What is Myopia?

    Myopia or short-sighted is when far object are blurred due to the elongation of the eye ball, which results the image to focus in front of the retina.

    What are the main causes of myopia?

    The exact causes are not known. However, it has shown a strong linked of genetic predisposition and environmental factors. Children whose parents are myopic are likely to be myopic. Long hours of constant near work and reduce outdoor activities are often contribute to the progression of myopia.

     

    How do we manage children with progressive myopia?

    1)      Good eye care habits are important!

    Frequent eye breaks after 30-40mins of near work are essential. Engage in more outdoor activities to relax the eyes from indoor activities eg playing games on tablets and computer. Maintain a good reading distance and having sufficient lightings are important too!

     

    2)      Myopia Control Spectacle lenses

    We fit special myopia control lenses that can be incorporated into the spectacle frames eg Myovision and Myopilux lenses to young children to retard the progression of myopia.

     

    MIYOSMART

    MiyoSmart is Hoya’s myopia management lens that works like a single vision lens. It is targeted for a growing individual who has myopia. Myopia is short sightedness, it is linked with eyeball elongation. When a child is growing, the eyeball shape changes as well. For an individual with myopia, the eyeball is longer, the image formed is infront of the retina (the back part of the eye), hence the short-sightedness – unable to see distance clearly, however looking at near is clearer. MiyoSmart simultaneously controls myopia without interfering with the vision as the child is wearing it. It has two zones, focus zone at the centre – corrects myopia and defocus zone – controls myopia. The defocus zone has a honeycomb structure surrounding the focus zone. These little pockets has a fixed power that was calculated, to slow down the progression of myopia in a child. Clinical studies have found that MiyoSmart lenses has an average of 60% efficacy rate to slow down myopia progression.

     

    MYOVISION PRO

    MyoVision Pro is one of the myopia management lenses produced by ZEISS. It works like a single vision lens, but MyoVision Pro controls myopia by using peripheral defocus management. (What is peripheral defocus) -> Its lens is designed in a way where it has a central clear zone – myopia correction – and towards the periphery of the lens is where the myopia control occurs. With MyoVision Pro, the image that the child sees will be on the retina at the centre. At the periphery, instead of the image being projected behind the retina (This causes myopia to develop), it will be in front or on the retina. This reduces the growth of eyeball elongation, thus helps to slow down myopia progression. It has an efficacy rate of about 30%.

     

    3)      Myopia control soft contact lenses

     

    BLOOMDAY

    BloomDay is Menicon’s myopia management daily soft contact lenses. When a child wears BloomDay, their vision is not compromised. They are able to see clearly with BloomDay as it is designed to correct myopia at the centre of the contact lenses. Besides myopia correction, it also controls myopia as the child is wearing it. The myopia control occurs in the periphery of the contact lenses, where its design is made to alter the light rays that goes into the eye. This slows down the myopia progression as it reduces the growth of eyeball elongation. BloomDay is worn during the day for about 8 to 10 hours, and have to be taken out by the end of the day. Its efficacy rate is about 70% to 80%.

     

    4)      Orthokeratology treatment

    The most effective way to curb the progression of myopia in children, by using specially designed Rigid Gas Permeable (RGP) lenses. Children can wear them safely (we only prescribe FDA approved contact lenses) overnight and enjoy corrected vision in the day. Many researches worldwide has shown promising results in slowing down the progression of myopia by using orthokeratology treatment. Find out more here.

     

    Specialized Contact Lenses

    Jun 04, 2021

    Specialized contact Lenses

    Fitting contact lenses can be challenging for some who had pre-existing cornea condition. However, it will become possible with the modern corneal mapping equipment and optometrist’s experience.

    Contact lens for Keratoconus

    Kerotoconus is a corneal disease that progressively thins and bulges the cornea, resulting in irregular corneal shape and results in high astigmatism. In advanced cases, glasses and soft contact lenses will not provide an acceptable vision due to irregularities of the cornea.

    There are several contact lenses option for Keratoconus patients:

    1)      Gas Permeable contact lenses for mild and moderate keratoconus, to provide a uniform tear film behind the lens without conforming to the irregularities of the cornea.

    2)      Piggyback lenses, where a soft lenses are worn beneath of the GP lenses to provide better comfort for wearers.

    3)      Hybrid Contact lenses is a large diameter lenses that has a rigid gas permeable central zone and surrounded by soft lenses material to provide good wearing comfort.

    4)      Scleral contact lenses , is a large diameter lenses that rest on the scleral (white part of the eye) and vault over the irregular cornea to provide a stable and comfortable fit.

     

    Contact lenses for Post LASIK patients

    Quite often, Post Lasik patients may require additional correction sometime after their surgery and some may not be suitable for second correction. GP and Scleral lenses can be an option to correct the residual refractive error or astigmatism. However, fitting contact lenses on a surgically altered cornea might requires several fitting sessions.

     

     

    Contact lenses for Presbyopia

    Like fitting a pair of bifocal or multifocal glasses, fitting bifocal or multifocal contact lenses are more complex compare to a regular contact lenses. Therefore, finding the ideal fitting contact lenses for presbyopia can be time consuming and costlier than regular lenses.

    However, the results are worth the extra time and expense. There are indeed a high number of satisfied patients, as there are decrease in the dependency on reading glasses.

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