General Eyecare Services

Comprehensive Eye Examination

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Eyes are our windows to the world and vision is more important than any of our other senses.

A comprehensive eye examination is crucial for identifying your visual needs as well as common diseases such as glaucoma, cataract and retinal problems. Without proper diagnosis and treatment, these diseases can permanently damage our vision. Early detection and pre-emptive action is especially important. Comprehensive Eye Examination is conducted by professional registered optometrist (Part l) and belongs to annual regular eye check. It is suitable for people aged 4 or above.

Comprehensive Eye Examination includes:

(approx. 45 min)

  1. Case history
  2. Refraction check (Measurement of refractive errors, such as myopia, hyperopia, astigmatism and presbyopia)
  3. Intra-ocular pressure measurement (Abnormal intra-ocular pressure may result in Glaucoma; early detection is the key to diagnosis and treatment)
  4. Binocular vision function test (lazy eye, squint, focusing disorder and abnormal eye movements may be detected via the test)
  5. Colour vision test
  6. Ocular health and fundus examination
  7. Consultation and recommendation

*Important Reminder: Pupil dilation maybe needed during eye examination. We suggest putting on sunglasses, avoiding driving, using computer or reading after eye examination. In general, ocular function will resume normal after 4-6 hours.

*We recommend adults to undergo an exam at least once a year.

*Comprehensive eye examination report can be provided upon request (with additional charge)

Premium Eye Examination

Premium Eye Examination is for customers who need a more detailed eye examination. It includes Comprehensive Eye Examination and Optical Coherence Tomography (OCT) assessment of Macular Map and Disc Circle. High definition cross-section analysis allows precise and effective evaluation of macula and optic disc.

Retina contains numerous nerve fibres and macula is responsible for sharp central vision. Any damage on these structures will cause direct impact on vision. Glaucoma and macular degeneration are the leading cause of blindness, but there is no obvious symptom in early stage which only can be detected through detailed eye examination.  For those at higher risk of getting glaucoma and macular degeneration, i.e. high myopia (> -6.00D), aged above 50 or get related family history, OCT provides more detailed and precise evaluation of ocular structures.

Annual checkup with OCT helps to give detailed reports on macular and retinal nerves. By monitoring minor ocular structure changes, early detection of eye diseases and referral for treatment are made possible by Premium Eye Examination.

*Important Reminder: Pupil dilation maybe needed during eye examination. We suggest putting on sunglasses, avoiding driving, using computer or reading after eye examination. In general, ocular function will resume normal after 4-6 hours.

*We recommend adults to undergo an exam at least once a year.

*Comprehensive eye examination report can be provided upon request (with additional charge)

Diabetes Eye Examination

(Source:hkappo.org.hk)

Diabetic Mellitus Retinopathy (DMR) is Hong Kong’s second leading cause of blindness. There are about 200 cases of blindness caused by DMR each year.

DMR is often associated with the cause of other ocular diseases such as cataract, retinal detachment, macular edema, vitreous hemorrhage and secondary glaucoma, so we should pay special attention to it.

DMR in the early stage has no obvious symptoms, hence diabetic patients are recommended to have eye examination at least once a year, in order to avoid any diabetes-induced eye diseases.

Examination Contents:

  • Case History
  • Refraction (e.g. myopia, hyperopia or astigmatism, presbyopia)
  • Intra-ocular Pressure (preliminary assessment of glaucoma)
  • Binocular Vision (e.g. strabismus, stereopsis)
  • Color Vision (e.g. color defect)
  • Ocular and Retinal Condition (Use of dilating eye drops to check fundus hemorrhage, macular edema, new vessels on iris, retina vessel abnormality)
  • Retina Photography (For comparison of retina conditions on each exam)
  • Diagnosis and Recommendation

Glaucoma Examination

(Source: Smart Patient – Hospital Authority)

Glaucoma is the leading cause of blindness in Hong Kong. It was estimated that three of every 100 persons aged above 40 has developed it.

The fluid (aqueous humour) that serves to keep our eyes in good health and shape maintains an intra-ocular pressure of 10-21mmHg. Abnormal intra-ocular pressure may damage the optic nerve head, resulting in glaucoma.

Those with high myopia or hyperopia, diabetes, a family history of the disease, prolonged use of steroid, and high intra-ocular pressure are at greater risk of developing the disease. Like any health issue, early detection is key. A glaucoma examination in our Hong Kong centre is recommended on a regular basis for diagnosis and treatment at an early age.

Examination Contents:

  • Case History
  • Refraction (e.g. myopia, hyperopia or astigmatism, presbyopia)
  • Intra-ocular Pressure
  • Binocular Vision (e.g. strabismus, stereopsis)
  • Color Vision (e.g. color defect)
  • Ocular and Retinal Condition (optic nerve assessment)
  • Assessment of Anterior Chamber and Angle (The structure for discretion of fluid))
  • Visual Field Testing
  • Diagnosis and Recommendation

Dry Eye Examination​

Dry eyes is a condition in which the eye fails to produce sufficient or good quality tears, resulting in the drying up of the ocular surface. Symptoms of dry eyes including eye dryness, foreign body sensation, photophobia (sensitivity to light), tearing, burning sensation or fatigue, and even impaired vision. Severe dry eye can lead to a corneal ulceration or inflammation of eyes.

Dry eyes are caused by a number of factors, including age-related lacrimal gland dysfunction, over exposure to indoor air-conditioned environment, excessive reading on electronic visual displays, insufficient rest, usage of some drugs, prolonged contact lens use, and LASIK eye surgery.

Examination Contents:

  • Case History
  • Conjunctiva Assessment
  • Measurement of Tear Output Level (Attaching a strip of filter paper to the lower eyelid to test the fluid level)
  • Eyelid and Cornea Checking
  • Diagnosis and Recommendation
  • Diagnosis and Recommendation

Optometrists will recommend different treatments to ease the dry eye problem based on their respective conditions, including prescription of artificial tears, eye supplement or dry eye treatment device.

Visual Field Test

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Visual field test is used to measure the field (scope) and sensitivity of vision, playing a vital role in diagnosing glaucoma, retinitis pigmentosa and other diseases that influence visual field (e.g. brain tumours). A good visual field is particularly vital to drivers as it helps to ensure driving safety.

Eye diseases (e.g. glaucoma, cataract, retinal detachment and macular degeneration) that influence the visual field may not have obvious symptoms at their early stage. This might lead to a delay in detection and treatment of the diseases and result in permanent visual damage.

Our centre is equipped with a world-class Computerised Visual Field Analyzer, which can effectively measure visual sensitivity as well as visual field.

During the test, you are required to cover one of your eyes, with the uncovered one focusing on detecting flashes of light. The computer programme will project different brightness and sizes of light spots in varies locations inside the equipment, while you need to press buttons based on the flashes you see. After testing both eyes, the system will analyse the collected data, comparing it with the norm data and analyse your eye condition.

Retinal Nerves and Macular OCT Scan

Optical Coherence Tomography is a non-contact, non-invasive optical diagnostic technology. It can obtain high definition cross-section analysis of a specific eye structure including: cornea, iris, crystal lens, retina, optical nerve head, nerve fibre layer and macula. By analyzing the information obtained, the customer’s ocular condition can be evaluated effectively.

This examination can help early detection of optic nerve fiber layer defects and changes which may lead to the development of glaucoma. Early referral and treatment can then be done to minimize the damage to the eye.

In addition, this examination is very useful for detecting and monitoring macula hole, macular edema or degeneration.

Other functions included: measurement of anterior angle and corneal thickness.

Axial Length Measurement by Optical Biometer

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Axial Length is the distance from the corneal surface to the retinal pigmented epithelium. Excessive axial elongation leads to myopia progression. Comparing to refractive error, axial length is more closely correlated with the risk of eye diseases. An axial length of 26mm or longer indicates a higher risk of having vision threatening eye diseases.Optical Biometry provides precise measurement of axial length (accuracy of 0.01mm) for optometrist to evaluate the risk of eye diseases.

Recommended for:

Children who need myopia management

  • Axial length measurement by optical biometer provides useful data for optometrist to decide suitable myopia management plans.
  • The aim of myopia management is to slow down axial elongation. By assessing axial length elongation and myopia progression regularly, we can better evaluate the effectiveness of myopia management plan.

People with high myopia (≥ -5.00D)

  • A myopic eye is usually of longer axial length. An axial length of 26mm or greater indicates a higher risk of having vision threatening eye diseases. Regular eye check is, therefore, recommended to allow early detection and management of eye health problems.

Automatic Retinal Image Analysis (ARIA) for Stroke

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ARIA (Automatic Retinal Image Analysis Technology) is developed by the Faculty of Medicine of the Chinese University of Hong Kong. By analyzing the captured retinal images to identify characteristics of the retinal vessels, such as arteriole‐venous nicking and arteriole occlusion, hemorrhages, tortuosity, asymmetry of branches and bifurcation angles, ARIA is able to assess the risk of stroke. Early intervention and management are made possible.

Advantages of ARIA for Stroke:

  • Convenient procedure only requires fundus photos of eyes
  • AI system takes just 20 minutes for to give result
  • Clinical trial shows over 90% in sensitivity and specificity
  • Noninvasive, easy and no complication when comparing to traditional MRI test

Risk factors:

  • aged 55 or above
  • smoking
  • obesity
  • alcoholic
  • family history
  • high blood cholesterol levels
  • diabetes
  • high blood pressure
  • cardiovascular diseases
  • unhealthy diet

*A Comprehensive Eye Examination is required for ARIA assessment and this service only available at Tai Koo Eyecare Centre.

ARIA-eWMH Cognitive Health Risk Assessment​

Automatic Retinal Image Analysis technology, ARIA analyses the white matter hyperintensities (eWMH) in the brain and evaluates the risk of dementia, which achieves more than 90% sensitivity. It is fast and convenient compared to cerebral MRI and blood test.

Rick factors of dementia and stroke

  • Age (aged 55 or above)
  • Diabetes
  • High blood pressure
  • High cholesterol level
  • Smoking
  • Obesity
  • Alcoholic
  • Family history
  • Lack of exercise
  • Unhealthy diet
 
*A Comprehensive Eye Examination is required for ARIA assessment and this service only available at Tai Koo Eyecare Centre.

Contact Lens Assessment

Unfit or improper use of contact lenses could damage the eyes. This is why an in-depth eye examination and contact lens fitting is essential to a wearer’s ocular health.

When conducting contact lens assessment, optometrists will base on the wearers’ eye conditions, their special requirements on the product, any problem encountered during the usage of contact lenses and their habits of using contact lenses, in order to provide a tailor-made recommendation and aftercare.

In addition to the disposable soft lenses, our Centre offers a variety of contact lens products and fitting services, including bifocal and progressive rigid gas permeable (RGP) lenses for presbyopia wearers, RGP lenses dedicated to keratoconus patients, soft lenses for presbyopia customer with astigmatism, specialty soft lenses for colour deficiency customers  and more.

Examination Contents

  • Refraction
  • Measurement of Corneal Curvature
  • Ocular Health and Tear assessment
  • Contact Lens Trial
  • Contact Lens Fitting and aftercare

Specialty Contact Lenses

Specialty Contact Lens for keratoconus

Keratoconus is an eye disease that results in progressive thinning and steepening of central or paracentral cornea. While the cause is unknown, it is believed that genetic factor and frequent eye rubbing may play a role in occurrence of keratoconus.

It occurs most commonly in late childhood to early adulthood. Initially, it may result in blurry vision, double vision, the condition can typically be corrected with glasses or soft contact lenses. As the disease worsens, irregular astigmatism and continuous progression of refractive error make correction with traditional glasses or soft contact lenses difficult to achieve clear vision.  Specially designed rigid contact lenses are required for vision correction.

Scleral Lens

Scleral lens is a rigid gas permeable lens of larger diameter, which rests on the sclera instead of the sensitive cornea. This avoids direct contact of the lens surface and cornea, hence less foreign body sensation and better wearing comfort. Larger lens size makes it more stable on eye and better centration. It covers larger portion of eye surface, reduce tears loss by evaporation. Tailor made design lens allows best fitting with eye ball surface and give stable clear vision.

Scleral lens helps in the eye conditions below:

  • Dry eyes
  • High Astigmatism (-3.00D)
  • Strong foreign body sensation with traditional small rigid gas permeable lens
  • Irregular astigmatism caused by eye diseases or cornea surgery, e.g. keratoconus, cornea transplant

Rigid gas permeable contact lens for presbyopia

It would be difficult for people using soft contact lens with astigmatism to continue contact lens wear when near vision difficulty appears. It is because there is limited choice of contact lens which corrects astigmatism and also presbyopia at the same time, and the vision it provides may not meet your requirement. Rigid gas permeable contact lens for presbyopia utilize the tear lens between the lens and the cornea, are able to correct astigmatism and give clear vision.

Lens types

  • Bifocal RGP
  • Multifocal RGP

Prosthetic Soft Contact Len

Prosthetic soft contact lenses are prescribed to mask flaws and improve the appearance of an eye disfigured from a birth defect, trauma, or eye disease. It reduces glares caused by abnormal pupil size and improve vision quality.

About the eye examination

1.Our optometrists will determine the necessary eye tests and procedures for you based on your eye conditions, and will provide you with the relevant test results.

2.Our optometrists may apply mydriatic eyedrops to dilate your pupils during the eye examination. After dilation, your eyes will become more sensitive to light and your near vision may be blurred temporarily. We advise you to bring a pair of sunglasses or an umbrella to protect your eyes from light. In addition, you should avoid driving, operating any machinery and doing paperwork after pupil dilation. In general, the drugs effect will only last for 4-6 hours.

3.It is not advisable to wear contact lens immediately after eye examinations as diagnostic drops may be applied.

4.The above information is for reference only. Please feel free to contact Optical 88 Professional Eyecare Centre or visit any Optical 88 branches for more information. Please make an appointment if you wish to have a comprehensive eye examination.