Complete Guide to NDA medical test standards eyesight requirements 2026

The NDA medical test eyesight requirements mandate a distant vision of 6/6 in the better eye and 6/9 in the worse eye for the Army, with stricter uncorrected standards for the Air Force and Navy, permitting limited refractive errors like myopia up to (-2.5) D and hypermetropia up to (+3.5) D.

What is the Exam?

The National Defence Academy (NDA) examination is conducted twice every year by the Union Public Service Commission (UPSC) to select eligible unmarried male and female candidates for the Army, Navy, and Air Force wings. Beyond the written paper testing Mathematics and General Ability, clearing the rigorous Service Selection Board (SSB) interview and the subsequent Special Medical Board is mandatory. At ExamBhai, we guide aspirants through every intricate detail of these physical and ocular parameters to ensure no candidate faces unexpected disqualification during their medical review.

Key Highlights 2026

• Conducting Body: Union Public Service Commission (UPSC).
• Exam Frequency: Twice a year (NDA-1 and NDA-2).
• Selection Stages: Written Examination, SSB Interview, and Comprehensive Medical Examination.
• Core Medical Focus: Strict evaluation of visual acuity, refractive errors, color perception, and binocular vision.
• Official Source Verification: Guidelines strictly conform to official updates hosted on upsc.gov.in.

Syllabus 2026

The written syllabus is structured into two primary papers testing foundational concepts and general awareness. While the medical standards test your biological fitness rather than academics, a strong grasp of physics optics aids your understanding of light and vision principles.

Exam Pattern

The structure of the written examination sets the baseline for qualification into the medical stage. To build the required precision under time constraints, you should practice free mock tests for Defence on ExamBhai.

Eligibility Criteria

According to official guidelines published on upsc.gov.in, eligibility spans age, educational qualifications, and physical-medical fitness. The eyesight requirements vary by service branch:

• Indian Army Wing: Uncorrected distant vision must be (6/6) in one eye and (6/9) in the other. Myopia limit is up to (-2.5) D, and hypermetropia should not exceed (+3.5) D (including astigmatism).
• Indian Navy Wing: Strict standards requiring higher visual acuity, with a low tolerance for refractive errors. Myopia is generally restricted to (-0.75) D and hypermetropia to (+1.5) D.
• Indian Air Force (Flying Branch): The strictest criteria demand near-zero error or minimal permissible limits, with strict exclusion of uncorrected refractive flaws.
• Color Vision: High-grade color perception (CP-I for Air Force, CP-II for Army/Navy) is non-negotiable. Color blindness leads to immediate disqualification.

Application Process

Applying for the NDA exam requires visiting the official UPSC portal. Candidates must complete One Time Registration (OTR), fill out application forms for NDA-1 or NDA-2, choose their service preferences, and verify all details before final fee submission. Ensuring accurate personal data prevents discrepancies during the subsequent medical roll checks.

Preparation Strategy

Balancing written preparation with physical and ocular health maintenance is vital. Candidates should maintain a balanced diet rich in Vitamin A and antioxidants, practice the 20-20-20 rule during long study hours, and track their performance via targeted assessments. To check your exam readiness, attempt expert-curated mock exams for Defence on ExamBhai.

Cut-Off Trends

Historical analysis based on data from upsc.gov.in indicates that the written cutoff generally hovers around (340) to (360) marks out of (900) for a combined safe score, followed by qualifying the SSB and medical benchmarks. Meeting the written cutoff is meaningless if a candidate fails the medical board's stringent eye test, making pre-evaluation by an ophthalmologist essential.

Frequently Asked Questions

1. Can I clear the NDA medical test if I wear spectacles?

Yes, spectacles are permitted for specific branches like the Indian Army and non-flying or ground technical branches of the Air Force and Navy, provided your refractive error stays within permissible dioptre limits and your vision is correctable to (6/6).

2. What is the maximum acceptable myopia limit for the NDA Army wing?

For the Army wing, myopia up to (-2.5) D (including cylindrical astigmatism up to (\pm 2.0) D) is generally accepted.

3. Is LASIK surgery allowed for NDA entry?

LASIK and other refractive surgeries are subject to strict guidelines. They are typically permissible only after a specific age (usually 20 years), with a stable post-operative refraction period and subject to prior pre-operative limits not exceeding acceptable thresholds.

4. What color vision standard is mandatory for the Air Force Flying Branch?

A highest-grade color perception level of CP-I is mandatory for the Flying Branch to ensure precise reading of signal lights and cockpit instruments.

5. Does night blindness lead to immediate disqualification?

Yes, conditions like night blindness or progressive retinal pathologies are entirely unacceptable, as operational readiness requires acute night vision.

6. How can I test my eyes before going to the official medical board?

It is strongly recommended to visit a certified ophthalmologist for a comprehensive evaluation covering visual acuity, myopic/hypermetropic limits, astigmatism, and a standard Ishihara plate test for color blindness.

Watch this detailed breakdown of NDA medical eyesight requirements