Gadgets and technology

Blindness(from what I read)

Blind is the disability to see lights, colors, and objects. Blindness can be catogorised into congenital and post-congenital. In the case of congenital blindness, only small number of infants patient can be cured through operation. Adult congenital patient cannot be cured totally through cornia transfer. It is because they have not seen colors since birth and have problems in intrepting visual. Most of them gone blind again after operation. They can see visual through their eyes but they cannot interpret the visual that they receive thus ignored it. They return to the old method by the sense of touch. While the post-congenital blindness can be cured through cornea transfer and has no problem seeing things.


Now post-congenital patients will probably need no cornea transfer as a scientific breakthough has been made. It is the bionic eyes which comprises of a digital camera, computer, and cables/wires. The digital camera works by receiving visual and convert the visual into electrical signals. The signals are then sent to a computer which will then turn the electrical signals into electrical impulses by simulating the impulses from an eye. The electrical impulses are then transfered through cables into the brain. Success experiment shown that patient were able to see images through the digital camera but the resolution was poor and it was in black and white. Improvements will be made onto the model to provide a better resolution and probably color vision.
Another variant has also being introduced. It is from a team of researcher from the California's Standford Unvertsity United State America. The different is it does not require cables/wires to be installed to the brain. It uses chip and photodiod which are implated into the eye. The processed data will be transfered to the chip via infra-red which will then activates the photodiod to create impulses to the brain.

In the future I hope that there will be bionic eyes which is good enough to replace human eyes.

Source from
wikipedia and estidot.

Photo from
igargoyle.com/archives/BionicEye.html