The Role of Microbial Biofilms Consisting on the Contact Lenses in Ocular Infection,Taif, KSA

This study was carried out during 2013, from ophthalmic private clinics, Taif, KSA. All patients understudy were complained from using contact lenses (CLs). Incidence of ocular inflammation due to duration of CLs use, that showed the predominate of ocular inflammation were at 1 st , 2 nd , 3 rd , 4 th , and 5 th days as 37.3, 26.7, 18, 10.7 and 7.3% respectively. Incidence of contact lenses type and inflammation affection, that showed the predominate of cosmetics CLs type were 65.3%, then medical type as 34.7%. The predominate inflammation were in bilateral eyes as 57.3%, then unilateral eye as 42.7% respectively. Incidence of local ocular inflammation signs, that showed the predominate signs of ocular inflammation were redness, lacrimation, itching, F.B. sensation, secretion and edema were 72, 68, 56, 48, 36, and 24% respectively. Incidence of CLs biofilm positive for microbial isolates, total CLs were examined 150, which resulted in 64% positive and 36% negative for microbial isolates respectively. Incidence of CLs biofilm microbial isolates types and species, total CLs were examined 96. The bacteria, fungus and protozoa were resulted in 70.8, 20.9, and 8.3% respectively. The predominant isolates were Pseudomonas aeruginosa, Serratia marcescens, Staph. aureus, Fusarium spp., Staph. epidermidis, Candida albicans, Acanthamoeba keratitis and Strept. spp., as percentage 22.9, 16.7, 14.6, 11.5, 10.4, 9.4, 8.3 and 6.2% respectively.