Click to play videoNew Delhi: There is good news for cataract patients. A new lens claims to help them see better at night.
Cataract patients are implanted with an intra ocular lens that filter the harmful UV rays and along with it, the blue light so they cannot see the colour blue.
“It causes a lot of discomfort. It gets very difficult to see in the night,” says a cataract patient, V S Bhatnagar.
But a new lens launched by Bausch and Lomb called Sofport AO violet shield does not do that, instead it claims to block the violet light.
And why is it a better option?
The answer is simple. When you break up the white light, and look at the vibgyor range, the more we move towards the left the higher is the energy, and higher the harmful effect on the eyes.
That is why the UV rays are the most harmful. Earlier research had also pointed out that even blue light could have a damaging effect.
“The lenses are tailor-made to block the blue light. But now, research shows that blocking the violet light serves as good and does not harm the night vision,” says opthamolgist, Dr Kamal K Kapur.
Secondly, blue light is known to induce sleep so therefore, in patients using the traditional cataract lens, insomnia and depression was common.
While the initial results have been positive but the lenses could cost you about Rs 5,000 more than the traditional lens.
Also, long-term studies are required to find out whether these new eye lenses could actually help induce better sleep in patients with cataract.
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