introduction: until now, many models have been presented for optical study of the human eye. in recent years, surgery on the anterior section of the eye (such as cataract and photo-refractive surgery) has increased, so a study on the optics of the eye and evaluation of vision quality has become more important. material and methods: in this article, some of these models are considered. they incl...

Laser-assisted in situ keratomileusis (LASIK) has become a wellaccepted and effective procedure for the treatment of a wide range of refractive errors. Microbial keratitis is a potential complication of LASIK with causative organisms, including gram-positive bacteria, atypical mycobacteria, fungi, and viral pathogens. Direct ocular trauma and exposure keratopathy in severely ill patients in int...

Here we report a case of endothelial keratoplasty with infant donor tissue obtained after brain death. A 52-year-old man with endothelial dysfunction of unknown cause in the right eye underwent non-Descemet stripping automated endothelial keratoplasty (nDSAEK) with tissue from an infant donor (2 years). Intraoperative and postoperative complications were recorded. Best corrected visual acuity a...

392 A 17‐year‐old female with a several‐year history of bilateral keratoconus was visited about 1 year prior to deep anterior lamellar keratoplasty (DALK) in her right eye (OD). History‐wise, she was intolerant to glasses and contact lenses and her past medical history and family history were unremarkable. On ocular examination, she had visual acuity (VA) of 2 meters counting fingers (CF) in ea...

BACKGROUND/AIMS Limbal allotransplantation is increasingly being used for ocular surface repair in patients with limbal stem cell dysfunction. However, it is uncertain whether donor cells survive long term on the ocular surface and whether patients maintain the early benefits of the procedure. The aims of this study were to investigate the long term outcome of clinical limbal allografts and to ...

selective deficiency of immunoglobulin a (iga) is the most frequent primary hypogammaglobulinemia. as some iga-deficient patients have iga antibodies in their plasma which may cause anaphylactic reactions, blood centers usually maintain a list of iga-deficient blood donors to prepare compatible blood components. in this study we determined the incidence of selective iga deficiency (sigad) in no...

in the september and november 2006 issues of nature clinical practice nephrology , two articles regarding living unrelated kidney donor transplantation alluded to the practices in iran. having served in the planning, supervision and implementation of various aspects of health care in iran, including organ transplantation (anh), and as transplant nephrologists who have actively participated in t...

Median third eye was found to develop from transplanted pineal gland of external gill stage tadpoles in the recipient 5 toe stage tadpoles of Bufo melanostictus. Pineal gland along with a bit part of brain tissue of the donor external gill stage tadpole was cut out and transplanted into a pit made between two lateral eyes of 5 toe stage recipient tadpoles. Half of the operated tadpoles were tre...