Dear Nagendra, here are the requirements:


Distance Vision (Corrected): Better Eye 6/6; Worse Eye 6/9. Myopia should not be more than -2.5D including astigmatism and manifest hypermetropia not more than +3.5D including Astigmatism. Internal examination of the eye will be done by means of ophthalmoscope to rule
out any disease of the eye. A candidate must have good binocular vision. The Colour vision standard will be CP-III (Defective Safe). Candidates should be able to recognize white, signal red and signal green colours correctly as shown by Martins Lantern at a distance of 1.5 metre or read the requisite plate of Ishihara Book / Tokyo Medical College Book. Candidates who have undergone or have evidence for having undergone Radial Keratotomy, to improve the visual acuity will be permanently rejected for all the services. Candidates who have undergone Laser Surgery for correction of refractive error are also not acceptable to defence services.

Vision Standards for Naval Candidates:

Uncorrected without glass    6/6, 6/9
Corrected with glass             6/6, 6/6
Limits of Myopia                  0.75
Limits of Hypermetropia     +1.5
Binocular vision                    III
Limits of colour perception  I


Visual Standards for Air Force:

Candidates who habitually wear spectacles are not eligible for Air Force, Minimum distant vision 6/6 in one eye and
6/9 in other, correctable to 6/6 only for Hypermetropia.

Colour vision CP-
I Hypermetropia : +2.0 D Sph Manifest Myopia : Nil Retinoscopic Myopia : 0.5 in any Meridian permitted Astigmatism : + 0.75 D Cyl (within + 2.0 D.Max)
Maddox Rod Test
(i) at 6 meters Exo-6 prism D
Eso-6 prism D
Hyper-1 prism D
Hypro-1 prism D
(ii) at 33 cms Exo-16 prism D
Eso-6 prism D
Hyper-1 prism D
Hypo-1 prism D

National Defence Academy & Naval Academy Examination

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