Cataract

What is a Cataract?

A cataract is a clouding of the normally clear lens of the eye. When the amount of light that passes through the lens is reduced and scattered by the cataract, images are not correctly focused on the retina at the back of the eye. The result is that vision becomes poor – it can be compared to looking through a frosted or steamed window.

What causes cataract?

Most cataracts are caused by ageing and long term exposure to ultra-violet light. Some children can be born with a hereditary type of cataract, and certain long-term medications have been known to cause cataract. Certain systemic diseases can also lead to the development of cataract.

What might people with a cataract experience?

In most cases a person with cataract will notice a gradual blurring of vision, exaggerated in certain lighting conditions. As it is caused by a haziness within the eye itself, glasses tend not to be as effective as they were prior to the cataract.

Treatment Options

Removal of the offending cataract usually occurs when day to day tasks are impeded due to blurred vision. Surgery is a relatively simple procedure, generally performed under local anaesthetic. An eye surgeon (Ophthalmologist) removes the cataract and it is replaced by an intra-ocular lens implant (IOL).

Tunisia’s mysterious new lake For the past three weeks, hundreds of swimmers have been flocking to a lake in the Gafsa region of southern Tunisia. But the sudden, mysterious appearance of this lake in a drought hit area has raised concerns about both the origin and the quality of authentic patriots jerod mayo mens jersey the mason foster mens jersey water. Locals discovered this mysterious lake alongside Om Larayes road, about 25 kilometres from Gafsa. The lake depth ranges from about 10 to chiefs derrick johnson womens jersey 18 metres. Local shepherds discovered this vast expanse of water about three markus wheaton youth jersey weeks ago. News of the lake appearance has spread like wildfire and eagles demarco murray youth jersey now hundreds of people, eager to escape a heatwave, go there to swim. They authentic brian orakpo womens jersey have christened it Beach. Many people are calling the lake appearance a miracle. That why I contacted a geologist working at Gafsa college of science who had come up with khalil mack womens jersey a number of theories about the lake origins, one being that seismic activity upset the water table, causing groundwater to rise to the surface. For the time being, the origins of this lake remains a mystery, but our biggest concern right now is the quality of the water. This region is overflowing with large deposits of phosphate, which can authentic rams zac stacy youth jersey leave behind radioactive residue [Editor Note: The city of Gafsa is located in a valley in the eponymous mountain range. Phosphate mining is the region main industry.] So, there is a real risk that this water is contaminated and carcinogenic. On the first few days, the water was a clear, turquoise blue. Now, it is greenish and filled with derrick johnson youth jersey algae, sure signs that the water is stagnant, which means it a perfect breeding ground for parasites and disease. Last Friday, despite the warnings issued by the Office of Public Safety, hundreds of swimmers came to the lake. The site is certainly stunning and there are many large rocks perfect for diving. So to truly dissuade people from coming, we need something more convincing than a little warning.
Tiny town will open its own pot shop Of all the steps taken since Washington legalized marijuana, North Bonneville’s might be boldest. The town of about 1,000 in Skamania County, which sits on the Columbia River about 40 miles northeast of Portland, is becoming the first government in the nation, and perhaps the world, to own a recreational marijuana store. For North Bonneville, it’s been a long journey. Open triumphGolfers give bad reviews of Chambers Bay course, USGA says it’s just fineCool Seattle places off the tourist pathNine time major winner authentic vikings john sullivan youth jersey Gary Player calls Chambers Bay a ‘tragedy’Elson Floyd, WSU’s ‘visionary’ president, dies The NBPDA’s five person board had to find private investment to fund the pot shop and rearrange itself when three board members dropped out. Then, the NBPDA had to prove to the Liquor Control Board it was independent from the city and capable of managing a store. "We never lost hope," said Tim Dudley, a NBPDA board member. "We knew it was going to take longer."
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