Dr. Chan Jonathan Cheuk Hung

Dr. Chan Jonathan Cheuk Hung

FHKAM (Ophthalmology)
FRCSEd (Ophth)
Healthcare Voucher


Common Symptoms
  • blurred vision
  • Seeing halos around lights or double vision in a single eye
  • Decreased night vision
  • The color of the image turns yellow, dull, and distorted
  • Changing glasses or contact lens prescriptions frequently

Acute glaucoma

  • Narrowed field of view
  • Feel sick and vomit
  • Severe eye pain with accompanying
  • Headache/migraine
  • Sudden blurred vision
  • Bloodshot, swollen eyes
  • When looking at the lights, there are halos and rings around

Macular degeneration

  • Central vision and blurred vision
  • Image distortion, distortion
  • Darkening or blind spots/spots appear in or near the center of the image
  • Sensitivity to light, or seeing lights, shapes, or colors that aren't there


Common Diseases
Cataract A cataract is when the lens in the eye becomes cloudy and affects your vision. Many patients have the opportunity to become cloudy due to aging 

Glaucoma is an eye disease that involves damage to the optic nerve (connecting the eye to the brain) and retinal nerve fibers (the light-sensitive nerve tissue at the bottom of the eye). There are two main types of glaucoma:

  • Chronic glaucoma: In the early stage of chronic glaucoma, there are no obvious symptoms. In the later stage of the disease, the peripheral vision of the patient may gradually shrink, leaving only the central vision.
  • Acute glaucoma: A sudden and sharp increase in intraocular pressure necessitates immediate medical attention. Doctors need to lower eye pressure as soon as possible to prevent permanent and irreversible damage to the optic nerve.
Macular degeneration Macular degeneration is a degenerative disease of the central retina, which causes the photoreceptor cells in the macula to be damaged and unable to function normally. The macula is located in the center of the retina and is also the place where the photoreceptor cells are densest, so it has an important impact on central vision.

A pterygium is a benign wedge-shaped fibrovascular growth of the conjunctiva that can enlarge & extend onto the cornea. The exact cause of the disease is uncertain. It may be related to prolonged UV light exposure. There may be no symptoms in earlier cases. In more severe disease, one may experience redness, inflammation, foreign body sensation in the eyes and blurring of vision.


Corneal disease

Orbital, Oculoplastic and Thyroid Eye Diseases

Pediatric eye disease

Dry eye syndrome

 Retinal detachment
Examination and Diagnosis
  • Eye Structural Tomography
  • Optical Coherence Tomography
  • Visual Field Test
  • Dilated Fundus examination ( dilation of the pupil to examine the retina, optic nerve, and optic nerve head )
  • Vision test
  • Color vision test
  • Tonometry
  • Slit-Lam Biomicroscopy: Cataract
  • Stereoscopic test
  • Strabismus check
  • Eye muscle function check
  • Laser surgery
  • Pterygium Resection Surgery
  • Cataract surgery
  • Glaucoma surgery
  • Intravitreal Anti-Vascular Endothelial Growth Factor Injection

Service Location

Centre Location
Polyhealth Specailist (Eye Centre)
1/F, Star House, No.3 Salisbury Road, Tsim Sha Tsui, Kowloon
Enquiry Hotline
66705910 (WhatsApp) / 2117 1828
Specialists Booking Tel
Opening Hours
Monday:09:00 - 19:00
Tuesday:09:00 - 19:00
Wednesday:09:00 - 19:00
Thursday:09:00 - 19:00
Friday:09:00 - 19:00
Saturday:09:00 - 13:30
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Centre Location
Polyhealth Specialists (Star House TST)
Shop 102A, 103A, 103E, 105A, 1/F, Star House, No.3 Salisbury Road, Tsim Sha Tsui, Kowloon
Enquiry Hotline
Specialists Booking Tel
Opening Hours
Monday:09:30 - 18:30
Tuesday:09:30 - 18:30
Wednesday:09:30 - 18:30
Thursday:09:30 - 18:30
Friday:09:30 - 18:30
Saturday:09:30 - 14:30
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