Thousands of young students aspire to join the Indian Defence Forces every year by preparing for the NDA examination. They prepare well, study hard, and then one question comes at them, and it paralyses them – “I wear spectacles.” Is it still possible to apply for NDA 2026? If this is your question, you are in the right place. This blog will discuss NDA eyesight requirements, NDA medical standards, and NDA eligibility criteria in layman's terms. The best NDA books of 2026 will also be shared with you to prepare well.
What is an NDA, and Who Can Apply?
NDA is the acronym for National Defence Academy. UPSC holds this exam twice a year to recruit officers for the Indian Army, Navy and Air Force. The age limit for appearing in the NDA exam is 16.5 to 19.5 years, and the candidate should be a male citizen of India to be eligible for the exam in 2026. You should have passed in or be appearing in class 12. In class 12th, Physics and Mathematics are compulsory for the Navy and Air Force. You will also need to be single and physically healthy to the standards of the NDA.
NDA Eyesight Requirements – Branch-wise Standards
The medical board tests your distance vision with no glasses or contact lenses. The standard is different for each branch. The complete list of NDA eyesight requirements by branch:
|
NDA Branch |
Better Eye |
Worse Eye |
Spectacles Allowed? |
|
Army |
6/6 |
6/18 |
No |
|
Navy |
6/6 |
6/6 |
No |
|
Air Force (Pilot) |
6/6 |
6/9 |
No |
|
Air Force (Other) |
6/6 |
6/18 |
No |
The Navy is the most demanding, with a 6/6 vision in both eyes. All branches test unaided vision only. An eye test is not to be done with spectacles or contact lenses.
Can You Apply for NDA With Spectacles?
This is the most frequent question, and the truthful answer is – wearing spectacles does not automatically exclude you. The important thing is your unaided vision (without glasses). You may still pass the medical exam if you can see the table above with your natural vision without spectacles.
If your unaided distant vision is below the standard – for example, 6/24 or worse – then you will be deemed medically unfit for that branch. Contact lenses are also not allowed to be worn during the test, and therefore cannot be used to help you improve your score. Have your eyes checked by a doctor first to find out where you stand.
NDA Medical Standards for Eyes – Full Checklist
The NDA medical standards test is about more than just distant vision. The medical board reviews the following information:
|
Eye Condition Checked |
Standard Required |
Disqualifying? |
|
Distant Vision (unaided) |
6/6 in the better eye |
Yes, if not met |
|
Colour Vision |
CP-I (Martin Lantern Test) |
Yes, if failed |
|
Squint |
No squint allowed |
Yes |
|
Lasik Surgery |
Permitted (Army/Navy only) |
Check the latest rules |
|
Contact Lenses |
Not allowed during test |
Yes |
Colour vision is especially important for the Air Force. The Martin Lantern Test is used to determine the CP-I grade which is acceptable for flying. A candidate will not be accepted for the Air Force if they have any type of colour blindness.
Is LASIK Surgery Allowed for NDA?
Yes, NDA can have LASIK surgery, but under certain conditions. If the surgery has been performed at least 12 months before the medical examination, the Army and Navy will accept the surgery if the eyes are completely stable and there have been no complications. The rules of the game have been changing in recent years for the Air Force pilot job, so it is always better to check the latest official notification released by UPSC for the NDA before making any decision. Consult a qualified eye specialist before going for surgery with the aim of meeting NDA eyesight requirements.
Read More: Can Girls Apply for NDA II 2026? Female Eligibility Explained
Best NDA Books 2026 to Start Your Preparation
Don't discontinue your written exam preparation while you are working on your medical fitness. There are two papers in the NDA written test: Mathematics and General Ability Test (GAT). Selecting the right NDA exam preparation books in 2026 can make a world of difference. Here are some basic steps:
|
Book / Resource |
Best For |
Type |
|
Chapter-wise practice |
Practice Resource |
|
|
NCERT Class 11 & 12 |
Concept building |
Foundation Books |
While selecting NDA books 2026, select books that have the new syllabus, solved examples and a good question bank at the end of every chapter. An NDA question bank is great for revision as it provides you with hundreds of practice questions, topic-wise. These everyday things will help you to become faster and more accurate. The best book for NDA preparation 2026 will be a combination of theory and practice.
Final Thoughts
NDA eyesight requirements are stringent but definite. Spectacles have no bearing on your dream; it's your unaided vision number that counts. Have an eye exam, know exactly what you want, and then apply with confidence. Meanwhile, don't stop studying. Refer to the correct NDA books 2026, practice daily with the NDA question bank and carefully adhere to the NDA eligibility criteria. Thousands of students appear for the NDA every year. With smart preparation, you can too.
Recommended NDA Books and Study Materials
FAQs - NDA 2026 Eyesight Requirements
Yes. Wearing spectacles does not disqualify you. You are required to have only your unaided vision meet the required standard for the branch that you select. A medical eye test is not to be conducted with spectacles on.
The Army requires 6/6 in the best eye and 6/18 in the worse eye, without glasses.
No. Colour blindness is not a disqualification, particularly for the Air Force. CP-I colour vision grade is only acceptable for flying tasks.
May be helpful for the Army and Navy 12 months before a medical test and for stable eyes. For the Air Force, please refer to the latest UPSC notification, as there are changes in the rules periodically.
