Introduction: Keratoconus is a relatively common disease of cornea in which structural changes within the cornea cause it to thin and change to a conical shape and scar at the central portion of cornea. So far, few methods and drug treatments were introduced due to both lack of accepted animal models to induce experimental keratoconus and limitation of research in human considering ethical issu...

purpose: to determine bacterial contamination of corneas and corneal storage media provided from the eye bank of i.r. iran to rasool akram medical center. methods: this descriptive study was performed on 70 corneoscleral rims and corneal storage media. one milliliter of corneal storage media and the corneoscleral rim were sent to microbiology laboratory at the time of penetrating keratoplasty a...

A scleral contact lens lies on the sclera, not cornea, which differs from a rigid gas permeable (RGP) lens, and has shown successful clinical outcomes in patients unable to tolerate glasses or RGP lenses because of severely deformed cornea. In addition, forms tear film between cornea that stabilizes ocular surface could be useful therapeutic option. The mini-scleral is option for visual improve...

Our goal is to prove that during corneal perforation, when it larger than 3 mm, we should not rush perform keratoplasty (cornea transplant). First, do our best and fight the end preserve a patient's own cornea, in which amniotic membrane will help us. In 15 patients with where size of perforation exceeded 3-4 surgical treatment was performed piece applied cornea. 14 out 15, their cornea moderat...

background: the ostrich is an interesting subject concerninganimal evolution and morphology studies. it has been speculatedthat ostrich eyes would have distinct tissue structures and this hasnot been previously studied in detail. objectives: the aim of thepresent study was to investigate the histology of the outer layer ofthe ostrich. methods: ten mature ostriches were chosen from anostrich bre...

background: the aim of the present study was to evaluate the efficacy of autologous serum eye drop in treatment of recurrent corneal epithelial defect. m aterials and methods: fourteen patients with recurrent corneal epithelial defect were studied. autologous serum was prepared from the patients and diluted in 20% normal saline. the patients were instructed to use the autologous serum every six...

extractdefective corneas are the leading cause of blindness world wide and the second leading cause, after diabetic retinopathy,of blindness in the united state , afflicting 30000 americans each year. happily, nearly 95 percent of those who have corneal transplantations( in 1985 they numbered,26300) regain their sight. the cornea is a transparent, a vascular, dim-sized tissue continious with th...

abstract background: clients that be hospitalized in intensive care units were not able to protected cornea and eye dry due to keratopathy. the aim of study was to comparing the effectiveness of three methods of eye care in health of cornea in critically ill patients in kermanshah intensive care unites 2013. methods: these clinical trials were done with 96 samples in three. three methods care (...