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Tag: eye examination

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What does axis in contact lenses mean?

The axis figure on prescription contact lenses is for people who have astigmatism and indicates the required location of cylindrical power on the lens. This determines the angle of vision correction that someone with astigmatism would need, due to the irregular curvature of their eye, which can be described as shaped like a rugby ball. Axis is part of your prescription, and tells an optometrist in which direction they must position any cylindrical power in your lenses that is required for astigmatism. The number shows the orientation or angle (in degrees) from 1 to 180. The number 90 means vertical position, and 180 horizontal. A higher number for the axis does not mean that your prescription is stronger, it simply describes the position of the astigmatism.

axis in contact lenses
Meridians of the eye are determined by superimposing a protractor scale on the eye’s front surface. The 90-degree meridian is the vertical meridian of the eye, and the 180-degree meridian is the horizontal meridian.

The axis is the lens meridian that does not contain cylinder power, defined by a number between 1 and 180 degrees. The eye doctor will determine the axis during a refraction (vision test). The number 90 represents the eye’s vertical meridian, whereas the number 180 represents the horizontal meridian. 

The axis in contact lenses does not indicate the strength of an eyeglass prescription. Instead, these numbers reflect the location of any astigmatism present. 

This will be helpful for opticians when an eyeglass prescription has cylinder power (CYL value).  The axis value directs where to place the power in the lenses, so individuals with astigmatism can see better. 

In eyeglass prescriptions, optometrists will notate both the cylinder power (strength of astigmatism correction needed) and cylinder axis. If the axis is 180 degrees, you may see it notated as x180.

Individuals with a “normal” eye axis will not see these values in their eyeglass prescriptions because they do not have astigmatism. People with a normal eye axis have strong and clear vision because the light is falling at the right place on the retina.

Dr Nigel Best, explains what the categories and numbers on your glasses prescription actually mean.

Consult Optometrist

Book an appointment with a Malaya Optical Optometrist today to learn more about optimum fitting and contact lens base curve. You can also visit our page for answers to your questions about vision correction with contact lenses.

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Steps to prevent infections from COVID-19

Recently, all of us were keep monitoring the largest outbreak of respiratory disease which was caused by the novel coronavirus. According to WHO (World Health Organization- 2020), Coronaviruses (CoV) or also known as COVID-19 (Coronavirus Disease 2019) are from a large virus family, which causes sickness ranging from the common cold to more early encountered severe diseases such as Middle East Respiratory Syndrome (MERS-CoV) and Severe Acute Respiratory Syndrome (SARS-CoV).

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can you sleep in bausch and lomb ultra

Can you sleep in Bausch & Lomb Ultra?

‘Can I sleep wearing Bausch & Lomb Ultra?’

Wearing contact lenses is different from wearing eye-glasses. Because they are worn directly on your eyes, the contact lenses will affect any way your eyes function. These effects tend to increase the length of time the lens stays on your eyes before removal.

Although a large number of people manage to wear contact lenses without problems, before you decide whether to start or continue wearing contact lenses for everyday wear, you need to get consultation from your optometrists regarding the effect of contact lenses on your eyes and the risk associated with wearing contact lenses. Let’s meet Malaya Optical Optometrists for consultation regarding your eyes.

However, it is important to not wear your lenses longer than recommended by your eye care specialists since doing so increases the risk of adverse effects. Since only your eye care specialists can determine how your eyes react to the contact lenses through a professional eye examination.

The Bausch & Lomb Ultra contact lenses are indicated for daily wear or extended wear for up to 7 days between removals for cleaning and disinfecting of the lens as prescribed by your eye care specialists. Despite, sleep with Bausch & Lomb Ultra with an extended wear, once the lens are removed, your eyes should have a rest without lens wear for at least one nights.

Still, if you face some problems with your contact lenses and lens care products, it could result in serious injury to your eye, thus, it is essential that you have to follow all labelling instructions for proper use of the lenses and lens care products, including the lens case.

Can you sleep with Bausch and Lomb Ultra?

The risk of microbial keratitis (infected corneal ulcer) complication are caused by a weakening of the cornea’s resistance to infection; improper lens disinfection; poor personal hygiene; unsuitability to the particular lens or wearing schedule; damage to the lens; improper fitting or due to length of wearing time. As a result, the specialist’s have to set up the overnight application period from up to 6 nights and 7 days of continuous wear.

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Red and Dry Eyes

Dry Eyes At Night

Dry eyes can be irritating, uncomfortable and at times, borderline painful. But throughout the day, your dry eyes are annoying but not painful and yet, at night, the true colors of having dry eyes emerge.

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Glaucoma Vision

What is Glaucoma?

Glaucoma is an eye disease that slowly damages the nerve for vision at the back of the eye which is the optic nerve. This condition is often linked to high pressure inside the eye but can also occur with normal pressure. Early detection and treatment can prevent or delay vision loss caused by Glaucoma.

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Age-related Macular Degeneration AMD

What is Age-related Macular Degeneration (AMD)

Age-related Macular Degeneration or AMD is an eye disease that is associated with ageing that affects the central vision. Central vision is needed to see detailed objects clearly and is important for everyday tasks such as reading and driving.

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Diabetic Retinopathy Vision

What is Diabetic Retinopathy?

Diabetic Retinopathy is an eye disease caused by diabetes and it includes both Type 1 and Type 2 diabetes. It affects the small blood vessels of the retina at the back of your eye. An early diagnosis and treatment can prevent up to 98% of severe vision loss

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Family History Vision Loss

Family History of Vision Loss

If a member of your family has a problem with there eyes, there is a high possibility that you too will experience the same thing. An eye test can detect a problem before it affects your eyesight. An early detection of an eye problem, can improve the likelihood of treatment.

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Optometrist Eye Check Up
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Optometrist Contact Lenses testing