Complete Guide to NDA medical standards for eyes 2026

The National Defence Academy (NDA) mandates strict ocular standards for all candidates. For General Duty (Army), distant vision must be 6/6 in one eye and 6/9 in the other. For Air Force/Navy, 6/6 is mandatory without glasses. Myopia, hypermetropia, and color blindness are primary grounds for medical disqualification if they exceed limits.

What is the Exam?

The National Defence Academy (NDA) entrance examination, conducted by the Union Public Service Commission (UPSC), serves as the gateway to the Indian Armed Forces. It is a prestigious national-level exam that selects candidates for the Army, Navy, and Air Force wings of the NDA and the Indian Naval Academy Course (INAC). We at Exam Bhai view this not merely as a test, but as the first step toward a lifelong commitment to national service. The selection process is rigorous, combining a written examination followed by the Service Selection Board (SSB) interview, culminating in a highly detailed medical examination that ensures only the physically and mentally fittest candidates are inducted.

Key Highlights 2026

• Exam Authority: Union Public Service Commission (UPSC).
• Selection Stages: Written Examination (Objective Type) and SSB Interview.
• Medical Standards: Governed by the official guidelines issued by the Ministry of Defence.
• Age Limit: 16.5 to 19.5 years at the time of course commencement.
• Gender Eligibility: Male and female candidates are eligible for the NDA exam.
• Educational Requirement: 12th pass (10+2 pattern) with specific stream requirements (Physics and Math for Air Force/Navy).

Syllabus 2026

The syllabus is divided into two papers: Mathematics and the General Ability Test (GAT). We at Exam Bhai emphasize mastering these core topics to clear the cut-offs.

Exam Pattern

The exam follows a structured objective format. Understanding this is crucial for time management.

To sharpen your accuracy, we recommend you practice free mock tests for Defence on Exam Bhai to simulate real exam pressure.

Eligibility Criteria

According to the official notifications at upsc.gov.in, candidates must meet stringent visual standards.

Visual Standards for Army

• Distant Vision: 6/6 in the better eye and 6/9 in the worse eye.
• Myopia: Must not exceed -2.50 D (including cylinder).
• Hypermetropia: Must not exceed +2.50 D (including cylinder).

Visual Standards for Air Force & Navy

• Distant Vision: 6/6 in both eyes.
• Myopia: Not permitted.
• Hypermetropia: Not permitted.
• Color Vision: CP-I (Must be able to pass Ishihara plates).

Candidates must undergo a comprehensive eye examination by a specialist before applying to avoid disqualification during the final medical board.

Application Process

The application process is conducted entirely online through the UPSC portal. Candidates must ensure that their personal details, including educational qualifications and medical history, are declared accurately. We advise students to check the official website periodically for updates on the 2026 application windows.

Preparation Strategy

Success in the NDA requires a balanced approach between academic rigor and physical fitness. We suggest a structured routine where you integrate subject-wise learning with regular assessment. You should access advanced analytics for Defence subjects on Exam Bhai to identify your weak spots early. Consistency is key, and we encourage students to maintain a disciplined study schedule to cover the vast syllabus effectively. Additionally, you may use our expert study modules for Defence on Exam Bhai to streamline your revision process.

Cut-Off Trends

The cut-off marks are released by the UPSC after the final results. Historically, the aggregate cut-off for the written exam typically ranges between 340 and 360 out of 900 marks. These figures are periodically updated on the official upsc.gov.in portal. We at Exam Bhai monitor these trends to help candidates set realistic target scores for their preparation.

Frequently Asked Questions

Q1: Can I wear glasses for the NDA medical exam? A: Yes, but only within the prescribed limits for the Army wing. Air Force and Navy wings do not permit glasses for pilot or executive roles.

Q2: Is LASIK surgery allowed for NDA? A: LASIK is generally not permitted for Air Force and Navy. For Army, it may be considered if the candidate meets specific criteria, but it must be declared during the medical examination.

Q3: What happens if I am color blind? A: Color blindness (CP-II, III, or IV) is a permanent disqualification for most branches of the NDA, as color perception is critical for naval and aviation operations.

Q4: How is vision measured during the medical test? A: Vision is tested using a Snellen chart from a distance of 6 meters. Candidates are tested for distant and near vision, color perception, and field of vision.

Q5: Does squint eye lead to disqualification? A: Yes, a manifest squint (strabismus) is a ground for disqualification as it affects binocular vision.

Q6: Can I undergo eye surgery before the SSB interview? A: We strongly advise against any non-essential eye surgery right before the SSB. Any surgery must be disclosed, and failing to do so may lead to rejection for concealment of facts.