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About John Crouch

John started his career as an Optical Technician, starting with spectacle production and progressing on to prescription house laboratory management. He then trained in ophthalmic equipment maintenance, gaining experience working with a number of optical chains, before transferring to spectacle dispensing and practice management. After joining Mainline Optical in 1996 as a Product Manager for lens manufacturing systems and video dispensing equipment sales, he moved to Mainline Instruments as an Optometric Sales Manager working with optical practices and medical clinics to provide the most innovative instrumentation available.
25 05, 2021

What is Uveitis?

2021-07-23T14:39:19+01:00May 25th, 2021|News|

Uveitis is when an inflammatory disease produces swelling and redness within the eye, and destroys the eye tissue. If left untreated it can lead to scarring or vision loss.

The inflammation occurs within the uvea, which is the middle layer of the eye, which includes the iris, ciliary body and choroid. However, it can also affect the lens, retina, optic nerve […]

25 05, 2021

What is Heterochromia?

2021-07-23T14:39:00+01:00May 25th, 2021|News|

Heterochromia is when a person has differently coloured eyes or eyes that have more than one colour in them, which affects less than 1% of the population.

It’s caused by genes passed down from your parents or by something that happened when your eyes were forming. In rare cases, it can be a symptom of a medical condition. It is usually […]

17 05, 2021

World No-Tobacco Day

2021-07-23T14:37:35+01:00May 17th, 2021|News|

31st May is World No-Tobacco Day and this yearly celebration informs the public on the dangers of using and smoking tobacco and what people around the world can do to quit smoking and have a healthier lifestyle. The World Health Organization created World No Tobacco Day in 1987 on 31st May to draw attention to tobacco-related health issues and the […]

17 05, 2021

What is presbyopia?

2021-07-23T14:42:15+01:00May 17th, 2021|News|

Presbyopia is the gradual loss of ability to focus on nearby objects. It usually becomes noticeable in your early to mid-40s and continues to worsen until around age 65.[1] An eye exam can detect presbyopia and can be corrected with glasses or contact lenses, or occasionally surgery.

 

Symptoms

Presbyopia is a natural part of aging, and symptoms include:

  • Needing to […]
11 05, 2021

Blue light lenses – do they work?

2023-02-14T16:19:43+00:00May 11th, 2021|News|

Blue light lenses have gained in popularity over the last few years, with more and more people turning to them to stop any negative side effects from constant screen use and blue light emission, such as headaches, dizziness or blurred vision. But do they actually work?

 

What is Blue Light?

Blue light is a short-wave blue light in the spectrum of colours […]

23 04, 2021

Why is myopia on the rise?

2021-07-23T14:38:42+01:00April 23rd, 2021|News|

Myopia (or short-sightedness), is a very common eye condition that causes distant objects to appear blurred, while close objects can be seen clearly. It’s thought to affect up to 1 in 3 people in the UK and is becoming more common . But what is causing this increase in myopic refractive errors?

Refractive errors can be inherited from parents, or be […]

23 04, 2021

Myopia and Hyperopia – What’s the difference?

2023-02-14T15:55:39+00:00April 23rd, 2021|News|

What is myopia?

 

Myopia is better known as short-sightedness or nearsightedness[1]. It’s a very common condition that causes viewers to see objects in the distance blurred, but objects close to them clearly.

It can range from mild myopia, where treatment may not be required, to severe, where vision is significantly affected and needs to be treated. A common symptom of […]

25 03, 2021

What are the 6 functions on the Tomey MR-6000?

2021-07-23T14:40:03+01:00March 25th, 2021|News|

The Tomey MR-6000 is the ultimate time-saving and space-saving device, as this multifunction unit has six functions in one, replacing the need for multiple, separate machines.

The 6 functions are:

  1. Topography, 2. Refraction, 3. Keratometry, 4. Tonometry, 5. Pachymetry, 6. Dry eye analysis tool. But what does each function do?
  1. Topography

Topography measures the surface of the eye (the cornea) giving […]

15 03, 2021

A history of: Slit Lamps

2021-07-23T14:36:41+01:00March 15th, 2021|News|

What is a slit lamp?

A slit lamp has two components, a bright source of light shone through a slit and a binocular microscope.

It is used by ophthalmologists and optometrists to examine the anterior segment and posterior segment of the eye, which includes the eyelid, sclera, conjunctiva, iris, natural crystalline lens, and cornea. The examination provides a stereoscopic magnified view of […]

10 03, 2021

National No Smoking Day 2021

2021-07-23T14:37:13+01:00March 10th, 2021|News|

Today is National No Smoking Day, a day that brings awareness and education to encourage smokers to kick the habit!  It takes place every 2nd Wednesday in March annually and this year the campaign is supported by  Action on smoking and health (ASH) and Breathe 2025, as well as Public Health England.

There are many health benefits to quitting […]