Glaucoma

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Glaucoma

By Isabella Sara Novack
Reviewed by Maria Horan FBDO
Maria Horan FBDO

Reviewed by

Maria Horan FBDO
Maria holds a BSc Honours in Ophthalmic Dispensing and has over 17 years of optical experience.
Glaucoma - A eye diseases characterised by increased pressure within the eye (intraocular pressure) that can damage the optic nerve. This damage can lead to progressive vision loss. Regular eye exams are crucial for early detection and management, as glaucoma can cause irreversible blindness if left untreated.

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Glasses sphere

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Glasses sphere

By Isabella Sara Novack
Reviewed by Maria Horan FBDO
Maria Horan FBDO

Reviewed by

Maria Horan FBDO
Maria holds a BSc Honours in Ophthalmic Dispensing and has over 17 years of optical experience.
Glasses sphere - The part of your glasses prescription that indicates the strength of lens power required to correct nearsightedness (myopia) or farsightedness (hyperopia). The sphere (SPH) value is measured in diopters, with a minus sign (-) denoting myopia and a plus sign (+) indicating hyperopia.

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Driving glasses

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Driving glasses

By Isabella Sara Novack
Reviewed by Maria Horan FBDO
Maria Horan FBDO

Reviewed by

Maria Horan FBDO
Maria holds a BSc Honours in Ophthalmic Dispensing and has over 17 years of optical experience.
Driving glasses are glasses/ lenses may incorporate an anti-reflective coating that eliminates the glare from street lights or headlights, helping drivers by reducing the risk of being blinded by light. They're often worn at night, but driving sunglasses also exist.

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Diopter

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Diopter

By Isabella Sara Novack
Reviewed by Maria Horan FBDO
Maria Horan FBDO

Reviewed by

Maria Horan FBDO
Maria holds a BSc Honours in Ophthalmic Dispensing and has over 17 years of optical experience.
Diopter (D) - A unit of measurement used to measure the power of a lens, indicating its ability to bend light. Diopters is the measurement used to record nearsightedness, farsightedness and astigmatism. For instance, a lens with a -2.00 diopter is used to correct myopia, meaning it helps focus distant objects more clearly.

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What Is Pupillary Distance?
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Corneal ulcer

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Corneal ulcer

By Isabella Sara Novack
Reviewed by Maria Horan FBDO
Maria Horan FBDO

Reviewed by

Maria Horan FBDO
Maria holds a BSc Honours in Ophthalmic Dispensing and has over 17 years of optical experience.
Corneal ulcer - A serious eye condition that affects the cornea, usually due to infection from bacteria, viruses, fungi, or parasites. Symptoms include severe pain, redness, discharge and blurred vision. Corneal ulcers require prompt medical treatment to prevent permanent vision loss.

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What is hyperopia?
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Corneal abrasion

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Corneal abrasion

By Isabella Sara Novack
Reviewed by Maria Horan FBDO
Maria Horan FBDO

Reviewed by

Maria Horan FBDO
Maria holds a BSc Honours in Ophthalmic Dispensing and has over 17 years of optical experience.
Corneal abrasion - A scratch or injury to the cornea, the eye's clear, protective layer. Symptoms include pain, redness, watery eyes or increased tearing and sensitivity to light. While some corneal abrasions heal on their own, more often they need additional eyedrops to speed up the cell regeneration. They can also sometimes lead to infections if not properly treated, so it’s important to seek medical attention if symptoms persist.

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Conjunctivitis

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Conjunctivitis

By Isabella Sara Novack
Reviewed by Maria Horan FBDO
Maria Horan FBDO

Reviewed by

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Maria holds a BSc Honours in Ophthalmic Dispensing and has over 17 years of optical experience.
Conjunctivitis involves the inflammation or infection of the conjunctiva, the thin, clear tissue covering the white part of the eye and the inside of the eyelids. Symptoms include redness, swelling, itching and discharge. Conjunctivitis can be caused by bacteria, viruses, allergens (in which case it's also known as pink eye), or irritants, Bacteria conjunctivitis is often highly contagious.

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Computer glasses

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Computer glasses

By Isabella Sara Novack
Reviewed by Maria Horan FBDO
Maria Horan FBDO

Reviewed by

Maria Horan FBDO
Maria holds a BSc Honours in Ophthalmic Dispensing and has over 17 years of optical experience.
Computer glasses - Specialised eyeglasses that optimise your vision when working on computers or other digital screens. Their viewing zone is at the correct distance for computer work, thereby reducing digital eye strain and discomfort at intermediate distances. They also tend to come with blue light-blocking coating and an anti-reflective coating that reduces glare and improves contrast.

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Lazy eye (Amblyopia)

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Lazy eye (Amblyopia)

By Isabella Sara Novack
Reviewed by Maria Horan FBDO
Maria Horan FBDO

Reviewed by

Maria Horan FBDO
Maria holds a BSc Honours in Ophthalmic Dispensing and has over 17 years of optical experience.
Lazy eye (Amblyopia) - Also called a lazy eye, this is a disorder of sight in which the brain fails to fully process vision from one eye, over time the brain will ignore this eye and will favour the other eye. This can result in poor depth perception and visual clarity. Early diagnosis and treatment, such as corrective glasses, eye patches or exercises, are essential to improve vision in the affected eye,this needs to be achieved before the age of 7.

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Dry eyes

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Dry eyes

By Isabella Sara Novack
Reviewed by Maria Horan FBDO
Maria Horan FBDO

Reviewed by

Maria Horan FBDO
Maria holds a BSc Honours in Ophthalmic Dispensing and has over 17 years of optical experience.
Dry eyes - A condition where the eye may not produce enough tears or the tears produced are of poor quality, leading to irritation, redness and a gritty feeling. Dry eyes can be caused by various factors, such as tear evaporation, poor blinking and blocked meibomian glands. Risk factors include aging, certain medications, environmental conditions, or prolonged screen time. Treatment may include artificial tears, lifestyle changes, or other medical interventions.

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