[Congenital corneal anesthesia: case reports].

Case series of nine patients with congenital corneal anesthesia, six of them showed systemic changes in association with the ocular status. Three patients were submitted to electromyography, two showed isolated bilateral ophthalmic ramus alteration. Two patients had initial visual acuity better than 20/60 and six had final best corrected visual acuity better than 20/60 at the last visit.

Cataract prevalence in Central-West region of São Paulo State, Brazil.

Purpose: Cataract is considered the main preventable cause of blindness and visual impairment mainly in poor countries. This study was done to evaluate if cataract is still an important cause of blindness in Central-West region of State of São Paulo, Brazil.

Methods: A cross-sectional study was conducted with a systematically randomized sample of households in five cities located in Central-West region of São Paulo State, Brazil.