Prevalence and risk factors of human papilloma virus infection among women living with HIV, Egypt, a cross sectional study.

Background: HPV is considered the most common sexually transmitted infection. It is responsible of 70% of cervical cancers worldwide. HIV infection is associated with increased rates of HPV infection.

Microcapillary sign of flap alignment in femtosecond laser-assisted in situ keratomileusis.

We present an observational sign that ensures perfect alignment during femtosecond laser-assisted in situ keratomileusis (FS LASIK). Alignment is assured when a microsponge is used to dry the flap and the area of dryness exceeds the area of direct touch of the microsponge. The area might even reach the whole circumference of the flap at the first touch.