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Science Technology


Age-related macular degeneration, a condition affecting older people

Age-related macular degeneration, a condition affecting older people

Kolkata, Sep 6 (UNI) Age-related macular degeneration (AMD) is a condition affecting

older people and involves the loss of the person's central field of vision.

It occurs when the macular (or central) retina develops degenerative lesions. It is

thought that circulatory insufficiency, with reduction in the blood flow to the macular

area, also plays a part. Several forms of AMD exist.

Globally, AMD ranks third as a cause of blindness after cataract and glaucoma. It

is the primary cause in industrialized countries. The main risk factor is ageing.

Other risk factors may include the use of tobacco, genetic tendencies, the degree

of pigmentation (with light coloured eyes being at higher risk), arterial hypertension,

the ultraviolet rays, and consumption of a non-balanced diet.

The early and intermediate stages of AMD usually start without symptoms. Only a

comprehensive dilated eye exam can detect AMD.

The eye exam may includes: Visual acuity test. This eye chart measures how well

you see at distances.

Dilated eye exam: Your eye care professional places drops in your eyes to widen

or dilate the pupils. This provides a better view of the back of your eye. Using a special

magnifying lens, he or she then looks at your retina and optic nerve for signs of AMD

and other eye problems.

Amsler grid: Your eye care professional also may ask you to look at an Amsler grid.

Changes in your central vision may cause the lines in the grid to disappear or appear

wavy, a sign of AMD.

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E-cigarettes effective at helping smokers quit: study

E-cigarettes effective at helping smokers quit: study

15 Feb 2019 | 4:19 PM

New Delhi, Feb 15 (UNI) E-Cigarettes are effective at helping smokers quit and are almost twice as successful as products like patches or gum for smoking cessation, according to a study.

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Tuberculosis remains world’s deadliest infectious killer

Tuberculosis remains world’s deadliest infectious killer

15 Feb 2019 | 1:33 PM

Kolkata, Feb 15 (UNI) Tuberculosis (TB) remains the world’s deadliest infectious killer,
each day, nearly 4500 people lose their lives to TB and close to 30,000 people fall ill
with this preventable and curable disease.

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HIV awareness: 360 degree approach by government

HIV awareness: 360 degree approach by government

08 Feb 2019 | 10:45 AM

New Delhi, Feb 8 (UNI) The Government has implemented 360 degree multimedia campaigns along with mass media to create awareness on HIV/AIDS and promoting services, facilities across the country.

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16 die of swine flu in HP, 113 new cases surfaced

16 die of swine flu in HP, 113 new cases surfaced

05 Feb 2019 | 2:01 PM

Shimla, Feb 5 (UNI) With two more patients succumbing to the deadly H1N1 influenza in Himachal Pradesh, the toll in the state mounted to 16.

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World Cancer Day: Health Min says cancer curable if detected, treated early

World Cancer Day: Health Min says cancer curable if detected, treated early

04 Feb 2019 | 2:22 PM

New Delhi, Feb 4 (UNI) Union Health Minister JP Nadda on World Cancer Day on Monday said cancer is curable if detected and treated in time.

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