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How to Prevent Eye Strain in Computer & Mobile Users

As the time is passing by, we are becoming more & more dependent on computers & mobiles, both for work and entertainment. Although,...



Blogging for almost 15 years, today I announce my new domain www.drahsan.com. Initially, I blogged at mutanthuman.blogspot.com, then bought www.doctorahsan.net in March, 2010. 



 
Now, when I was about renew it, I found that drahsan.com was available, so immediately purchased it, as it is .com and easy to remember & type.

I haven't posted regularly in the past few months but this domain has given me some energy to make some editing to the  template and start writing. Hoping that you will enjoy it.
 
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A US woman has been charged with murder after allegedly poisoning her husband by putting eyedrops into his water for several days.

Her husband died by falling from stairs but later toxicology report found tetrahydrozoline in his body. Tetrahydrozoline is used as decongestant in eye drops and nasal sprays available over the counter. It can cause seizures, coma and difficulty in breathing.

Source: BBC News

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Google honored Ferdinand Monoyer, a famous French Ophthalmologist, on his 181st birthday by a doodle. He developed the diopter, the unit of measurement of deviation of light over a specific distance. It's still used as standard these days. Monoyer also devised an eye chart where every row represents a different diopter, from smallest to largest.

Learn more about Ferdinand Monoyer and doodles

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A cataract is clouding of eye's natural lens. Here, I share an infographic about the history of cataract surgery and you will be amazed to know how it has evolved over time.





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A beautifully narrated, edited 8 min clip for all beginner femtosecond cataract surgeons, showing commonly faced complications and their management.

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Shah Mir Aizaz, a Pakistani student from Grade 10 has won the second position in 2015 NASA Ames Space Settlement Design Contest.

Every year, individuals, small teams of two to five, and large teams of six or more are invited from all over the world to submit space settlement designs to NASA Ames for judgement. This year there were 994 submissions from 3,007 students. Entries came from 21 nations worldwide and 14 different states from USA.
 
Shah Mir Aizaz registered in his individual capacity and won 2nd place for his report titled “Beyond Infinity – Eros Outer Atmosphere Settlement.”. His work was judged by aerospace professionals, and was thoroughly examined for its ideas in making a space city work. He had to figure out answers for issues such as air supply, agriculture, infrastructure and more in an environment that theoretically does not support human life.

Shah Mir, we are really proud of you. May you bring further glories to Pakistan, Ameen.
 
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A Fairy in Mid Air

Femtosecond lasers are the latest cutting edge technology in ophthalmology and have led to the development of many new techniques and refinement of old techniques in refractive surgery. 

Now scientists from the University of Tsukuba, Utsunomiya University, Nagoya Institute of Technology, and the University of Tokyo, have used femtosecond lasers to produce 3D images in mid air by ionization, which can be touched and interacted. The most important feature of the system is that power of laser is reduced to such an extent that it is not harmful to the skin. Plus interacting with the image generates small shockwaves under the skin, so one can have haptic feedback as well.

Watch the Video at these links
to see the awesome magic in action.

Read more at IEEE Spectrum blog.

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