RRB NTPC: Eye-Vision standards. How to check 6/6, 6/9, 6/12, 6/18 Explained


Summary: RRB NTPC Eye Standards: Categories and Posts, RRB NTPC Eye Standards: How to check whether your eyesight is 6/6, 6/9 or 6/12, 6/18.

RRB NTPC Eye Vision Standards

Dear MockBankers

The last date to fill up RRB NTPC application forms is approaching fast. Many students are still confused about the medical especially eye standards for the RRB NTPC posts. Medical exam will be conducted after the candidate has successfully cleared both the RRB NTPC test and aptitude test (if applicable). and it is clearly mentioned in RRB notification that ‘If you fail Medical test, you will not be considered for any other post’.  Today we will tell you about the medical/eye standards and explain them in laymen terms so that you can check your eligibility at home and apply for RRB NTPC before January 25th 2016. Click here to apply now

We would still recommend that you get them checked by an eye specialist for the certificate.

RRB NTPC Eye Standards: Categories and Posts

Indian Railways maintains high criteria for medical especially eye standards. The posts in RRB NTPC have been divided into the following two categories based on eyesight and medical standards:

1. Category A-2: Physically fit in all respect. Visual Standards:

  1. Distance vision: 6/9, 6/9 without eyeglasses.
  2. Near Vision:Sn: 0.6, 0.6 without eyeglasses and must pass test for Colour, Binocular, Night Vision &  Field of Vision.

Posts in A-2 Category: If you pass the Visual standards for A-2 you will be eligible for all C-1 posts in addition to the following 3 posts: 

  • Traffic Apprentice.
  • Assistant Station Master.
  • Goods Guard.

2. Category C-1:  Physically fit in all respect. Visual Standards:

  1. Distance vision should be 6/12, 6/18 with OR without eyeglasses.
  2. Near Vision:Sn: 0.6, 0.6 without eyeglasses and must pass test for Colour, Binocular, Night Vision &  Field of Vision.

Posts in C-1 Category: If you pass the Visual standards for C-1 you will be eligible only for the following C-1 posts:

  • Commercial Apprentice.
  • Jr. Accounts Assistant Assistant Cum Typist.
  • Sr. Clerk cum Typist.
  • ECRC.
  • Traffic Assistant.
  • Senior Time Keeper.
Note: Candidates who have applied for ASM & TA posts are required to  submit a certificate issued by eye specialist for aptitude test.

RRB NTPC Eye Standards: How to check whether your eyesight is 6/6, 6/9 or 6/12, 6/18.

  1. The fractions 6/6, 6/9 or 6/12, 6/18.. are measurements of Visual Acuity(VA). 
  2. VA denotes the clarity and accuracy of your vision and is typically checked at a distance of 20 feet (6.1 m).
  3. The numerator in the fraction refers to a distance your eye can see as compared to the denominator, which refers to the distance at which a normal healthy eye can see.
  4. Your VA is then generated by comparing you to arbitary “normal” standard. The first number is the distance you were standing from the chart- say, 6 meters. The second number is a measure of how well you did in terms of reading the letters as compared to the “normal” person.
  5. For example, if you read just as well as a normal person, you’d get a 6 for your second number: you read the chart as well as a normal person would from 6 meters away. So your score would be 6/6: while standing 6 meters from the chart (first 6), you read as well as a normal person would standing 6 meters from the chart (second 6).
  6. But if you couldn’t read small letters accurately. Suppose you are standing 6 meters from the chart, but only read as well as “normal” person would when they were standing 9 meters away. Then your score would be a 6/9: while standing 6 meters from the chart, you read as well as a “normal” person would when standing 9 meters from the chart.
  7. It is really simple to check your visual acuity and find out if you are eligible for C-1 and/or    A-2.  All you need is an eye chart (known as Snellen Chart) as shown below. This is a smaller version, we have given the link to download the full A-4 size image below:
    RRB NTPC Eye Eligibility A-2, C-1 posts Snellen_chart Click here to download Snellen Chart pdf and printon A4 Paper
  8. The above chart has visual acuity represented in feet. For metric standards refer the image below:snellen_chart converted to metric

Question: I have -3.0 eye power. Do I satisfy the criteria of a 6/9 vision?

Spectacle lens (or eye) power and visual acuity (vision) are 2 different things.
-3.0 indicates the spectacle lens power for a particular person to get best (clearest) vision. 6/9 vision denotes being able to read a particular size of letters on a Snellen visual acuity chart.
If you had -3.0 of shortsightedness/myopia, you would not see 6/9 on the chart at 6 meters, without glasses.
If however, you wore -3.0D glasses, your vision might even be better than 6/9, indeed it might be 6/6 at 6 meters while wearing those glasses.
Generally, most people with -1.00D see 6/15-6/18, and those with -2.00D see 6/24-6/36 without glasses. But this is only a rough rule of thumb.


So basically if you do not put glasses and your VA is 6/6, 6/9, you are into A-2 category.

If however, you have glasses but have 6/12,6/18 vision you are in C-2 category.

Click here to read more about Snellen Chart

RRB NTPC Official Notification Rules:

(i) Before indicating option(s) for categories in Online application, the applicants must ensure that he/she fulfills the prescribed medical standards for that category/post.

(ii) Candidates qualifying in examinations for these posts but failing in prescribed medical examination will not, under any circumstances, be considered for any alternative appointment.

(iii) Candidates who do not fill the prescribed medical standards need not apply

(iv) The above medical standards ( Criteria) are indicative and not exhaustive and apply to candidates in general

(v) For Ex-serviceman different standard apply.

We would recommend that you get them checked by an eye specialist for the certificate.

We hope the above article has helped you in clearing your doubts regarding Visual Standards for RRB NTPC examination.

More Resources on RRB NTPC examination:

Click here for all information related to RRB NTPC Examination: Job Profiles, Syllabus, Books to Prepare and Much More.

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  • sachin

    I wear -1.0 glasses whether i am eligible for ASM or not??

    • Vaibhav


    • Vaibhav

      Generally, most people with -1.00D see 6/15-6/18 without glasses.


    I have -1.5.0 eye power DO I SATISFY THE CRITERIA

    • Vaibhav

      for C1 yes. for A2 no


    sir my eye power -2 but i apply goods gurds,asm post sir any probleam in online written exam,i prefarance asm & goods gurds 9 &10 sir pls repaly me

    • Vaibhav

      if you have power (eye numebr) and if you applied for ASM GG or TA you will be DQed in Medical. If you have put preference asm and GG in the last you will be considered for the first preference which do not have eye requirement and you shall be selected.

  • Vijay

    Nice Article. But you haven’t mentioned about LASIK. LASIK will also make unfit for A2

    • Vaibhav

      Yes any surgeries whatsoever will make you ineligible for both C1 and A2

  • sushma

    My eyesight is .75 and 1 for far distance. I will be elgible for which post

  • Shrikant

    Sir my one eye have -0.50 and other eye have 0.75 sir, can I fit for asm,comm.apprentice and goods guard pls reply,

    • Vaibhav

      Well as we have said above, if you are -0.5 then without specs you won’t be 6/6. But you might be 6/9, which satisfies the eligibility criteria for A-2 posts. Get your visual acuity checked.

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  • Sumalya Ghosh

    Sir, a recent infection has increased my shortsightedness. My first preference is asm.If I qualify CBT for asm and skip the aptitude test,would I be considered for my 2nd preference whose demands my eyesight fulfills?

  • Prakash Sonawane

    Hi sir

    I done my Lasik surgery a year back

    Now i have vision (R) 6/12 and (L) 6/9 can this qualifying
    SBI PO exam

    If not then for which exam i will apply.


      You can qualify for SBI PO even with Specs.
      They have a very normal eye sight check

      • Prakash Sonawane

        thank you sir


          You are welcome

  • arindam

    Sir my eyesight is -5 and -5.5 . Can i fit for comm. Apprentice, clerk cum typist.


      may be an issue for some posts

  • dharmendra p s


  • dharmendra p s

    Dear sir meri eye sight 6/9 aa rahi hai, kya mai alp ki liye laser operation krwa sakta hu, aur kya laser pakada jata hai kya


      laser pakda jata h

      • aakriti

        Sir is there anywhere written that laser cant be used?


          You have to check it on their website.

  • Ram

    sir i have 3/6 eye sight Now can I apply as visually impaired for IBPS PO or not ??


      You have to see the detailed article for that

  • Nitesh Bisht

    one eye 6/6 other eye nil vision can i apply for sbipo ,ibps po… whether i am eligible for ssc cgl or je