Posts in Help Guides Category

Blepharitis What Is It And How To Treat It

Blepharitis is a term used to describe when the eyelids become red, swollen and inflammed. It is caused by the pores or glands in the eyelid becoming blocked. This in turn prevents the natural oil in the lids from coating the tear layer and keeping the eye moist and healthy.

In blepharitis the water in the eye will evaporate and the eyes will become dry and irritable.

Blepharitis is a chronic long term condition, which means you will need ongoing treatment. If left untreated it can cause infection and even longer term damage to the surface of the eye, which in turn will affect vision.

 

There are Three Main Types of Blepharitis

Blepharitis What Is It And How To Treat It

Anterior Blepharitis

This is when the front (anterior) section of the eyelids becomes sore and irritable. This is caused by the body’s reaction to bacteria present on the eyelids. Some people show a greater sensitivity and allergy to the bacteria.

It is associated with some skin and scalp conditions, like dry or oily skin and dandruff.

Blepharitis What Is It And How To Treat It
Blepharitis What Is It And How To Treat It

Postertior Blepharitis

This is also known as Meibomain Gland Dysfunction(MGD).

Each human eye has approx 80 glands in each eye, 50 behind the upper lid, and 30 behind the lower lid. When they become blocked, they cannot release the oil which is used to lubricate the eye keeping to tear layer more viscous. Without the oil, the eye loses its natural tear layer to evaporation, thus causing  the cornea to  become dry. This can cause infections, scarring and a reduction in vision.

Blepharitis What Is It And How To Treat It
Blepharitis What Is It And How To Treat It

Demodex Blepharitis

Demodex Blepharitis is a type of blepharitis which is caused by the Demodex Mite.

This mite lives in the hair follicles on the face and the eyes and is most prevalent on the eyelashes.

Demodex mites emerge from under the skin at the bash of the eyelash root at night to eat dead skin cells, mate and lay eggs and expel waste products into your eyelid glands and eyelash follices.

These mites naturally occur on the skin in small numbers, and they can actually be benefical as they remove dead skin cells.

As long as they occur on the skin in small numbers, they typically don’t cause any harm.

They become a problem when they reproduce in large numbers. When this happens it is called an infestation, and they can cause significant damage to the skin and eyes.

They cause Eczema, dry, red, itchy skin and severe inflammationof the eyelashes, and damage to the oil producing meibomain glands.

SYMPTOMS Of DEMODEX BLEPHARITIS

1. Burning and Stinging.

2. Dry Eyes

3. White Crust/Flake in eyelashes

4. Eye Irritation and Inflamation.

5. Foreign Body Sensation.

6. Redness.

7. Tearing.

 

Blepharitis What Is It And How To Treat It
Blepharitis What Is It And How To Treat It

Risk Factors

Blepharitis is very common in people over the age of 50, also in people with dry skin, acne rosacea, diabetes, poor hygine, saborrheic dermatitis and demodicosis.

Also if you are allergic to dust and bacteria.

Symtoms

Blepharitis causes crusty scales to deposit on the base of the eyelashes, this is where the bacteria grows. The eyelid will become red and inflammed and your eyes will feel gritty, sore, itchy and experiance sharp painful stabbing symptoms.

Treatment

There are lots of different products which can be used to treat blepharitis. Historically,  your optician used to say to use hot water with baby shampoo as it would not irritate the eye too much.

However recently this method has come into question as the allergens in the baby shampoo may adversly affect the eye.

Baby shampoos were not designed to be used on the eyes and lid hygine and treatment options have changed.

New Treatment

Studies have shown the main treatment for blepharitis is HEAT. 

This is then followed by wiping the eyelids with a sterile pad or an individual moist wipe.

The heat is delivered by a heated mask which is placed over the eyes, the heat is used to unblock the Meibomian Glands and they can start to relese to eyes natural oils.

In order for the heat to be effective it must be at 35*c temperature for a period of at least 5 mins, This is because the glands will only unblock at a heat of 30*c and as they are situated behind the eyelid 5*c is absorbed by the eyelid.

Traditional heat masks are ones which you put into the mircowave and then apply to your face. 

The drawback with them, is they are only hot enough for about 30 secs, after that they go too cool and will not work, and will need to be reheating again.

At GTTM we use a mask which delivers this heat at a constant rate over the whole 10 mins, opening up all the pores and relesing the oils.

Once a treatment is completed you can use the sterile pads and wipes , or even warm water with cotton balls or make up removal pads. It may take two weeks to start to see an improvement in the condition, but using our eyebag will speed up this process.

You shoulkd continue the treatment twice a day for at least 1 month, then you can reduce to once a day as symptoms get better. You must keep using the mask even when you dont have any symptoms to prevent any recurrance.

 

Blepharitis What Is It And How To Treat It

Blepharitis Treatment Method

1. Wash Hands before and after cleaning your eyelids and using your mask.

2. Apply GTTMs heated mask for 5 mins.

3. Rub a sterile pad moistened with warm wateralong the eyelid marginsto remove the crusts and debris.

4. Use a fresh pad or wipe each time.

5, Re-apply the GTTM’s heated maskfor 5 mins.

6. Dry your eyes gently.

Treatment Of Demodex Blepharitis

Your Optometrist can tell you if your blepharitis is caused by Demodex Mites as they can look on a slip lamp with a high magnificationto see the mites on your eyelids.

The most effective treatment is to use our eye mask, followed by applying TEA TREE OIL to a sterile pad and carefully cleaning the eyelid margins. You should hold your eyelid down away from your eye when clean the bottom lid and hold it up when cleaning the top lid. This is to prevent any of the tea tree oil getting into your eye.

This will kill the mites and eliminate the infection.

In very extreme cases your GP can prescribe antibiotic ointment applied to the eyes or steriod eye drops.

Some patients can benefit from oral antibiotics, particularly when the blepharitis is associated with a skin condition such as acne roseaea, These antibiotics are usually required for at least four to six weeksand may need to be continued for a number of months due to the chronic nature of the disease.

Masks and lenses steaming up

One of the main issues with wearing masks and face shields is your glasses steam up very quickly. Contact lenses would prevent this, but they can create their own issues, and not everyone likes to wear them.

In our ever adaptive would of Optics, advances are made sometimes through necessity, and all the different manufacturers have been in a race to produce an ANTI FOG lens.

We at GTTM have approached this problem from our customer based narrative. What is the best lens available? and what is the lowest price we can pass on to our customers

We have tested Ten different lenses and the standout winner was the no-fog lens by WLC.

We will add this lens to our options at the checkout.

I hope everyone is staying safe as possible out there, and hopefully this lockdown will end on the 8th and the kids can go back to school.

Stay Safe Everyone in 2021

 

Pichaya

GTTM

 

 

10 Essential Points when Buying Glasses Online

In the modern digital age, with all the technology available to us, its so easy to buy amazing prescription glasses online. You should be able to purchase top quality glasses and lenses at a fraction of the cost, without even leaving your armchair.

Our ultimate guide to Buying Glasses Online

1. Do I need to purchase glasses from the place I had my eyes tested ?

Absolutely Not! Do not let the sales person force you into buying new glasses from them. Each optician will be told they must sell new glasses to over 75% of the people they see. Some will even say there is a change when it is so small or does not exist just to make a sale. Then they have huge mark ups on the glasses and lenses, which you are under no obligation to buy. Take a copy of your prescription and you will be amazed at the savings you will make buying your new glasses online.

2. Do i have an up to date prescription?

Have you had a sight test within the last two years? Everybody’s eye prescription will change organically over time, so its important you use the latest prescription whenever possible. Recently this has not been possible for a lot of us, so some online stores have been accepting prescriptions which are older than two years. As we are coming out of lockdown, its advisable to get a new prescription, if needed.

3 What do i want my new glasses to do?

Do i need to use them for driving, reading or a combination of the two. If you are under the age of 40 then chances are you will just need glasses for distance vision, these will also automatically work for reading and anything else like computer.

If however you are over 40 then you will start to need glasses for reading, above and beyond your distance glasses prescription. This is called presbyopia and it effects everybody and can start early at 38 or even 45 for some people.

If this is affecting you, then its time for varifocals or bifocals.

4. Make sure you get quality lenses, which are correct for your prescription.

If you need varifocals, then the best varifocals available are called digital or freeform lenses. They use the latest in computer aided design to minimize any side distortion, which can be an issue in basic varifocals. Comparing digital freeform varifocals with a older standard varifocal is like comparing small wooden tennis rackets with the newer large size graphite ones!

5. Make sure to choose the correct lens thickness for your personal prescription.

lens thickness start at 1.52, this lens is only really suitable for prescriptions up to +/- 3.00. Any stronger than this and the lenses will look thick and be heavy.

The next thickness is 1.56, which makes the lenses about 20% thinner.

Next is 1.60/1.61, this will be approx 30% thinner.

The thinnest lenses available are 1.74, these are approx 40% thinner than standard.

6. Do i have to E mail my prescription ?

Where it is possible always E mail your prescription.You will be able to input your prescription on the site, but its always good practice ton send your prescription so there can be a zero error rate.

7.Check turnover times,how quick will you get your glasses?

You should be looking at 7 to 10 days for most single vision lenses, and 10 to 14 days for any bifocals or varifocals.

8 Are your glasses made by qualified opticians at every stage of the manufacturing process? 

At GTTM only people who are fully qualified in all aspects of eye care, from testing the eyes to making the glasses, fully oversea the manufacturing process.

9 Customer Satisfaction

Are the glasses what I ordered?

 Do my frame look like the glasses I ordered on the website, are they the correct colour and size? 

10. Packaging and Finish

Have my frames been protected during transport to me?

Do the lenses sit in the frame correctly, with no sharp edges, no overhang and a clean smooth finish.

Blue Guard Lenses

Blue light is a type of light which is emitted from electronic devices such as mobile phones, tablets and computers. It is known that this type of high energy light can damage the photosensitive layer at the back of our eyes called the retina.

Our Blue Guard lens will prevent any blue light from getting to your eye by filtering it out. This will eliminate any digital eye strain, allowing you to work for longer without getting tired. Your eyes will much more comfortable when looking at the screen, making working on the computer more enjoyable.

Frame size from your existing glasses

When you are selecting your new glasses, it would be a good guide
to use the measurements of your old glasses, so you will know your new
glasses will fit.

Your old frames will have some numbers on them, which are usually on the arm or side of your glasses frame.

  1. The first number is the lens diameter. This is the width of the lens measured in mm. The lens diameter is very much a matter of personal choice, but may also be determined by your chosen frame style which should suit your face shape and size. 
  2. The second is the bridge width.        This is the gap above your nose between the lenses. This measurement is crucial for making sure your new glasses fit comfortably. If the bridge size is too small, the glasses could pinch your nose. Conversely, if it is too wide, your new glasses may not be stable on your face. 
  3. The third number is the side length. This is the overall length of the side as measured from the hinge to the end of the side. Typically, side lengths come in one of three standards; 135mm 140mm or 145m.                                            When choosing an side length, remember that the side should be long enough to sit comfortably over and behind your ears. Please remember that glasses with straight sides may not always have this measurement indicated.
Frame size numbers location

How to read your Prescription?

So, you have had your eye test and have been given your glasses prescription, but what do all the numbers mean?

How to read your Prescription?
How to read your Prescription?

In this example, the first number is called the “spherical power,” (SPH) and this is what tells us if you are short sighted, (-) like this example, or (+) long sighted.

The second column ( CYL ), is cylinder power. This tell us how much astigmatism is present.

The next column is ( AXIS ). This will always be a value between 1 to 180 and relates to the orientation of the CYL power.

How to read your Prescription?

If your prescription does not contain a PD (Pupillary Distance) value, then check out our ” How to measure your PD”

How to Measure Your PD

Your PD, or pupillary distance, is important when ordering your glasses online, as it is the distance between your pupils, measured in millimetres.

This measurement is important to help us deliver the clearest possible vision in your new glasses.

Your PD is usually written as one value ( e.g. 64) but can be written as 32/32 if your eyes are a equal distance from the bridge of your nose, or written 31/34, if one eye is slightly further away than the other.

Average PD measurements for women are 62 with men at 64.

Measure your PD image

How to measure it yourself

We do encourage you to ask your optician for your PD measurement. 

If your optician is reluctant to give you this, you can take a very simple measurement yourself by just using a normal ruler.

Use a normal MM ruler and standing at arm’s length from the mirror, put the 0 of the ruler level with the edge of your pupil nearest to your nose. Then, keeping the ruler in place, look straight ahead and read the measurement from the edge of your pupil in your other eye, but this time use the outside edge of the pupil (see diagram).

 This will allow for a more accurate reading as it is sometimes difficult to pinpoint the centre of the pupil.