Posts Tagged ‘cataract’

Low Vision Aid

Wednesday, August 17th, 2011

As Opticians we pride ourselves on providing a service as well as offering the best and newest designs in frames, lenses and contact lenses. Sometimes we pass patients onto consultants for treatment of problems such as Glaucoma, Cataract or Macular Degeneration. There is also a less well known step in the process where we can look after patients suffering from low vision who need a special type of magnifier or visual aid rather than corrective treatment.

In the UK there are more than two million people registered as blind or partially sighted. We can help these patients by assessing the standard of vision they can achieve, and prescribing devices that make life easier. These may be simple hand-held magnifiers, lenses or telescopes attached to spec frames, large print books and clocks, or computer based viewing systems to enable the patient to read once more. Tinted lenses or special filters may be prescribed, or high illumination lamps. Technology plays a part too, with electronic magnifiers and e-books with an enlarged image.

If you are a carer for a relative with a visual defect that can’t be corrected, then using Low Vision services may significantly improve their quality of life, and allow them more independence. Advice on using a white stick or referring them on to Guide dog services may be a life changing experience. Different devices help patients to get around more easily, manage day to day living, or enjoy hobbies once again. If the Optician says that specs won’t help the patient any more, then ask if a referral to a Low Vision clinic would be suitable. There is often much trial and error to find the solutions that will suit each individual, and patients may need a combination of aids to help them. Annual assessment is recommended, to make sure that as sight changes the patient still has the best aids.

Varifocal Glasses

Red Nose Day Highlights Sight

Tuesday, March 15th, 2011

We’re all accustomed to the joys of Comic relief and Red Nose Day, and our office is already awash with squidgy pens and thoughts of fundraising this year. This amazing charity has already done sterling work in raising over £650 million pounds over the last 25 years. From Cliff Richard and the Young ones releasing Living Doll in 1986, to Eddie Izzard running his amazing marathons in 2010, Celebs and the public alike embrace this mammoth event.

This year we‘re really pleased to hear that Comic Relief will be raising awareness of eye disease during one of their epic journeys in Northern Kenya. The BT Red Nose Desert Trek will see five days of gruelling work by a Celeb team including Dermot O’Leary, Lorraine Kelly and Kara Tointon. They will have the chance to see the work of charity Sightsavers, who are dealing with many visual problems, including Cataract and Trachoma. Eye health issues are one of the most common problems amongst the poor in developing countries, and involvement with Comic Relief gives the Charity funds to help them continue to prevent blindness.

Cataract is a common eye condition, where the crystalline lens within the eye becomes cloudy due to age, trauma, smoking, UV exposure or congenital defect. A simple operation corrects this – extract the lens when the density of the opacity affects day to day life, and replace it with an implanted lens. This is a day case surgery with fast recovery and sight is dramatically better immediately. Problems in developing countries include raising awareness that Cataracts can be treated, providing screening and treatment, and even arranging transport so that patients can be seen. Sightsavers treated 273,000 patients with Cataract last year.

Trachoma is a disease of the eye lids which arises due to poor sanitation. Bacteria cause repeated bouts of conjunctivitis, with discharge and sore eyes. This is highly contagious, and although anti-biotic drops can treat the infection, the repeated problem stops the tears from functioning to sanitize and protect the eye. This can trigger trichiasis, where the eyelid and ultimately the lashes invert and damage the cornea. This causes scarring of the delicate window at the front of the eye and leads to permanent damage and loss of sight. It’s presently the worlds leading cause of preventable blindness. This disease is most prevalent with children, even though corneal scarring may not affect them until after their teens. The problem is tackled with information about reducing the risk of infection, treatment of infections that do occur with antibiotics, and surgery to remove areas of the lid that could damage the cornea.

This is all preventable blindness, so the work of Sightsavers is invaluable in helping sufferers. We’ll all be supporting Comic Relief this year, and glued to the screen on March 18th to see the sterling work of Sightsavers and other charities like them.

Varifocal Glasses

Cataract Facts

Friday, October 15th, 2010

Although cataract is a common eye condition, there is still a great deal of myth and mystery surrounding it. Our ageing population means an increase in cases of cataract, but luckily new surgical techniques and innovations provide easy, fast, painless solutions to the problem.

Cataract simply refers to the process of the crystalline lens inside the eye becoming opaque. As the condition progresses the patient notices their sight deteriorating, to the point where vision is severely obstructed. Almost 50% of blindness across the world is due to Cataract, and as one of the causes is UV damage, as our ozone layer becomes more depleted the incidence will rise. Although it’s easily cured the lack of surgical facilities mean that worldwide treatment is not always available.

Cataract can arise due to several different causes. Congenital cataract refers to babies born with the condition, which often has a genetic link. Injury to the eye or surrounding area can lead to traumatic cataract. Senile cataract occurs over time as the eye ages. Other factors such as UV, infra red light, and microwave radiation can cause Cataract. Some drugs can trigger cataract, as well as Iodine deficiency.

When the Cataract is deemed to be developed it can be removed by surgery. The crystalline lens is held in a capsule, and surgery may mean removal of the lens on it’s own, or with the capsule. In the UK the former is the usual, and a replacement lens is inserted. Surgery is usually a day case under local anaesthetic, and the patient will need drops for a while afterwards to prevent infection. The good news is that your former spectacle prescription will often be neutralized by the implant and if you do need glasses at all they may just be for reading or to correct a tiny residual prescription.

There are small risks attached to surgery, of retinal detachment and further opacities occurring in the lens capsule. Usually the risk is considered to be worth it for the simple removal of the opaque lens. There is no proven way to prevent Cataract at the moment, although giving up smoking, and wearing full UV protection will help.

Glasses Online

Can You Dig It?

Monday, March 29th, 2010

So it’s officially Spring and the sun is finally shining. Time to dust off the gardening gloves and hit the greenhouse, full of vim and vigour for the new growing season. Now before you start madly plating and digging, let’s think about the perfect eyewear to help you see the woods for the tress!

There are three aspects to specs for the garden, physical safety, glare/UV protection and your prescription. So much to think about! So let’s take it easy – safety is fairly straightforward and common sense. Don’t ever garden in glass lenses, pulling up a tough weed or strimming may fling tiny particles up that could shatter your lens. So stick to plastic, with an anti-scratch layer, and wash them before polishing after use. For heavy duty work with a chain saw etc, wear protective goggles over your specs. Many Gardeners end up with nasty scratches across their specs from branches, so preferably wear an old pair rather than your best ones.

If you’re out in the Garden for hours on end, UV can be a problem even on overcast days. Just wearing clear specs gives some protection, but consider investing in a UV coat if your life is spent outdoors. UV can trigger Cataract formation and Age Related Macular Degeneration. If glare bothers you, have a photochromic lens, which change to adapt to the light conditions, useful if you’re out dawn until dusk. If you’re strictly a fair weather gardener then a dark tint may be better, and useful if you snooze off for a well earned siesta!

Prescriptions become difficult once you need help for reading. Bifocals are annoying, as without the middle distance area pruning and separating tiny seedlings is difficult. You also don’t want to mow over your toes! Varifocals are probably the best option, as they allow you to see delicate detail and admire the view. So sort out your eyewear and pray for that Barbeque weather this year!

A Whole New World

Tuesday, February 16th, 2010

As a spectacle wearer for more years than I can remember, I’m used to visiting the optician and hearing unwelcome news – glasses need to be stronger, you can’t wear contact lenses anymore, you have a cataract forming……

The last piece of news was a real shock, although I had noticed for some time that my sight was deteriorating, even with my glasses on. In bright sun the light was scattered all over the place, and the world was growing slightly dimmer. The optician had mentioned ‘some changes’ last test and then this time he said my left eye had altered quite dramatically.

Cataract apparently occurs because the lens inside the eye becomes cloudy, and the treatment is then to remove the lens and replace it with an artificial implant. I feel pretty lucky because I remember my Dad having to wear really thick and magnifying lenses after surgery. I went in as a day case, I had local anaesthetic, and the procedure was done and dusted with less trauma than having a tooth out! I had to have eye drops which I coped with ok, and then the much awaited check up with the optician to see how my vision is.

He was really pleased with the sight in that eye, and the good news is that when I have the other eye operated on in the next few months, I may not even need glasses anymore! I’ll probably want them for close work, but the daily routine of putting my specs on even before opening my eyes will be gone for good. Every cloud has a silver lining, and my surgery was one of the best things that’s happened to me!