The pattern of ocular diseases vary in different parts of the world and is influenced by racial, geographic, socioeconomic and cultural factors[1-4]. The common ocular diseases world wide are cataract, glaucoma, conjunctivitis, corneal ulcers, uveitis, refractive errors, pterygium. Other eye diseases include trachoma, onchocerciasis, xerophthalmia and ocular malignancies[3-5]. Five conditions: ...