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Visual Acuity/Colour Vision. The visual acuity and colour vision
requirements are detailed in Appendix B to this chapter. Those
who do not meet these requirements are to be rejected.
Myopia. If there is a strong family history of Myopia, particularly if it
is established that the visual defect is recent, if physical growth is
still expected, or if the fundus appearance is suggestive of
progressive myopia, even if the visual acuity is within the limit
prescribed, the candidate should be declared unfit.
Ophthalmic Surgeries. Radial Keratotomy, Photo Refractive
Keratotomy / Laser in Situ Keratomileusis (PRK/LASIK) surgeries
for correction of refractive errors are not permitted for any duties.
Corneal Topography may be done in suspected cases. Candidates
having undergone cataract surgery with or without IOL implants
will also be declared unfit.
Ocular Muscle Balance
Individuals with manifest squint are not acceptable for
commissioning.
The assessment of latent squint or heterophoria in the case of
aircrew will be mainly based on the assessment of the fusion
capacity. A strong fusion sense ensures the maintenance of
binocular vision in the face of stress and fatigue. Hence, it is the
main criterion for acceptability.
