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Prism Glasses

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Double vision : Diplopia

What are prism glasses?

What are Prism glasses?


Prism glasses are a special type of glasses that have a triangle shape in the lens. They are prescribed by optometrists and added to regular glasses. These lenses can be helpful for people who have problems with their vision, such as seeing double or having trouble seeing things clearly. The prism bends the light, which helps to make the images line up correctly and reduce symptoms like headaches and difficulty reading.

prism optometrist

When are prism glasses prescribed?


Prism glasses are prescribed for people who experience severe symptoms of double vision or difficulty seeing with both eyes together. There are some common causes:


Visual difficulties caused by:

  • Binocular Visual Dysfunction

  • Strabismus (crossed eyes)

  • Myasthenia gravis

  • Graves’ disease (thyroid eye disease)

  • Convergence insufficiency (eye muscle weakness)


Neurological problems caused by:

  • Stroke

  • Migraine

  • Head injury

  • Tumor

  • Diabetes mellitus

  • Multiple sclerosis


If you or a family member are experiencing any of the signs mentioned above, contacting our optometrist can help. We may suggest using prism lenses as a quick solution to help relieve these symptoms.

When are prism glassses needed?


More services

Eye Exam

Our Centre provides eye test for Adults and children from two and half years old. The eye test covers refractive errors, visual functions and eye health assessment.

Myopia control & Orthokeratology


our centre also provide myopic control and orthokeratology service to kids and teenagers on indication.

Specialty contact lens services

In our center, we fit specialty contact lenses, such as rigid gas permeable (RGP) lenses, hybrid lenses and scleral lenses.

​Health Care Voucher

Our optometrists are appointed Health Care Service Providers of Health Care Voucher Scheme. Eligible Elderly may use Health Care Voucher for payment of eye examination and eyeglasses fee. For more information, you may contact us by telephone number 21530008 for eye examination booking.

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