Color Blindness Is An Inherited Defect Of Vision, Resulting In A Person's Inability To Distinguish Between Specific Colors.partial Color Blindness Is More Common Than Total Color Blindness, In Which A Person Sees Everything As Shades Of Gray(grey). The Most Common Form Of Partialcolor Blindness Leads To Inability Todistinguish Between Red And Green And Rarely Between Blue And Yellow.color Blindness Is A Fairly Common Conditionwhich Occurs More In Men Than Women, But It Is Rarely A Serious Disadvantage To Those Affected.approximately One In 20 Men And One In 200 Women Are Affected .some Studies Suggest That About Eight Percent Of The World's Male Population And Less Than One Percent Of Female Population Are Affected .many People Are Unaware They Are Color Blind Until Their Eyes Have Been Tested .the Retina Compromises Two Types Of Photoreceptors , Rods And Cones. Although The Rods Are More Numerous, Some 120 Million, And Are More Sensitive Than The Cones, They Are Not How-ever, Sensitive To Color. Rods Are Responsible For Vision At Low Light Levels(scotopic Vision) And They Do Not Meditate Color Vision And Have A Low Spatial Acuity The Six Or Seven Million Cones That Provide The Eye's Color Sensitivity Are Much More Concentrated In The Central Yellow Spot Known As The Macula.being Active At Higher Light Levels (photopic Vision) Cones Are Capable Of Color Vision And Are Responsible For High Spatial Acuity. In Simple Terms It May Be Said That Cones Require Brighter Light To Function Than Rods.red ,green And Have Their Corresponding Wavelengths . Red Wavelengths Are Longest, Followed By Green Wavelengths (medium) And Blue Color Is Made Up Of Shorter Wavelengths .they Are Red , Blue And Green Cones Which Are Sensitive To Those Colors And Combinations Of Them. If The Cones Do Not Work Properly Or If There Is No Right Combination, The Brain Does Not Get The Right Message About The Colors You Are Seeing.the Visible Colors From Shortest To Longest Wavelength Are Violet, Blue , Green , Yellow , Orange And Red.the Visible Red Light Having A Wavelength Of About 650 Nanometers Is Responsible For The Presence Of Red Or Orange Color At Sunrise And Sunset, Because The Wavelengths Associated With These Colors Are Less Efficiently Scattered By The Atmosphere Than The Shorter Wavelength Colors Such As Blue Or Purple.the Visible Green Light Having A Wavelength Of About 510 Nm Makes The Grass Appear Green Because All The Colors In The Visible Part Of Spectrum Are Absorbed Into The Leaves Of The Grass Appears Greenthe Visible Blue Light Having A Wavelength Of About 475 Nm Are Scattered More Efficiently By The Molecules In The Atmosphere Which Cause The Sky To Appear Blue.people Who Are Born Blind Do Not See Images In Dreams, But Have Dreams Vivid Involving Their Other Senses Of Sound, Smell, Touch And Emotion.color Blindness Caused By A Disease Of The Retina Or Optic Nerve Is Progressive And Associated With A General Deterioration Of Vision, Unlike Inherited Variety Where The Ability To See Detail Is Unaffected And The Condition Never Worsen.it Is Tested With Ishihara Chart Normally Their Are Means Of Testing Colour Blindness. Please Share============== S.s.venkateshwar, Andaman And Nicobar Islands

International Seminar On 'glomerular Diseases' Being Organized At Muljibhai Patel Urological Hospital, Nadiad, On 19-20 August 2011 Kidney Diseases Have Attained Epidemic Proportion All Over The World. End Stage Renal (kidney) Disease (esrd) Affects As Much As 1.8% Of Our Population And About 17% Are At A Risk Of Developing Kidney Diseases. Treatment Of Esrd Is Beyond The Means Of Common Man Even In Advanced Rich Countries. Glomerular Disease Contributes To 25% Of Esrd Patients. These Are Treatable Diseases And Can Be Prevented In Several Situations. Prof. John Feehally, President, International Society Of Nephrology, Will Be The Main Speaker In This Two Day Seminar. Several Reputed Teachers In Nephrology From All Across India Will Also Be Deliberating As A Faculty. The Seminar Will Be Attended By 150 Nephrology Professionals Consisting Of Nephrologists And Postgraduate Students In Nephrology. This Seminar Is Expected To Give A Boost In Understanding Of Glomerular Disease, It's Treatment And Cutting Edge Research In This Field In Our Country. Joseph@mpuh.org

Muljibhai Patel Urological Hospital International Honours For Dr. Mahesh Desai Of Mpuh Nadiad It Is A Matter Of Great Pride Not Just For The Muljibhai Patel Urological Hospital (mpuh), Nadiad, But The Country As A Whole, And The Indian Urology In Particular, That Dr. Mahesh Desai, Ms, Frcs (london), Frcs (edinburgh), Medical Director And Managing Trustee Of Mpuh, Has Been Elected As The ‘president-elect’ Of The Endourological Society Inc. At The World Congress Of Endourology (wce) Held At Kyoto, Japan During November 30 To December 3, 2011. During The Wce2011 At Kyoto, An Mpuh Doctor Won Two Prizes – 1st Prize For The Best Video “micro Percutaneous Nephrolithotomy: The Initial Feasibility Study”, And The 2nd Prize For The Best Essay “staghorn Morphometry: A New Tool For Clinical Classification And Prediction Model For Pcnl Monotherapy.” At The Initiative And Direction Of Dr. Mahesh Desai, Mpuh Had Successfully Organized The 12th World Video Urology Congress 2000 At Goa, And The 22nd World Congress On Endourology 2004 At Mumbai. It May Be Recalled, In October This Year, Dr. Mahesh Desai Had Become The First Indian To Assume The Office Of The President Of The Société Internationale D'urologie (siu) At The Siu World Congress Held At Berlin, Germany. It Is Unprecedented That Dr. Desai Is Perhaps The Only Person To Hold Both These Prestigious Positions Simultaneously Or Separately. The Other Positions That Dr Desai Has Held Include President, Urological Society Of India (2006-2007); Chairman, Sub-specialties, Society International D’urologie (siu) ( 2004-2009); Chairman, Scientific Committee, Endourology Society Inc. (2007 - Present); President, Asian Society Of Endourology (2008 - Present); Chairman, Endourology Education Training Site Committee Of Endourology Society Inc. (2008 - 2011); Member, International Committee Of American Urological Association (2008 - 2011). News Has Also Just Come In That Dr. Mahesh Desai Has Been Selected For The Prestigious ‘st. Paul’s Medal 2012’ By The British Association Of Urological Surgeons (baus). It Is Awarded To “distinguished Colleagues From Overseas Whose Contributions To The Association In Particular, Or To Urology In General, Baus Council Particularly Wishes To Appreciate And Honour.” Since The Inception Of This Medal In 1989, Dr. Mahesh Desai Is Only The Second Indian After Dr. Dara K Karanjavala (1993), To Be Honoured With This International Recognition. Www.mpuh.org