1 Introduction 2 Normal Flora and Common Pathogenic Bacteria of the Eye 3 Bacterial Conjunctivitis 4 Bacterial Keratitis 5 Bacterial Endophthalmitis 6 Conclusions Keywords: bacterial infections of eye-conjunctivitis, keratitis and endophthalmitis; clinical setting determining microbiology of bacterial conjunctivitis; bacterial conjunctivitis and mucopurulent drainage with papillary reaction; normal flora and common pathogenic bacteria of eye; Chlamydial conjunctivitis and trachoma-conjunctival and limbic scarring leading to trichiasis; gram-positive and gram-negative bacteria and infective keratitis; bacterial keratitis-inflammation of cornea and decrease in vision; Polymerase chain reaction (PCR) technology in bacterial endophthalmitis diagnosis