Such tears can heal, leaving inelastic scar tissue, which tightens and makes further tearing and scarring more doubtless. Differential prognosis: Several other disorders must be excluded by oph thalmoscopy. It is the biggest protozoan parasite of people and trophozoites are oblong or spherical, possess cilia, and multiply by binary fission treatment 24 seven discount trileptal 150 mg buy line.