Clusters of anophthalmia

Anophthalmia and microphthalmia

Anophthalmia and microphthalmia describe, respectively, the absence of an eye and the presence of a small eye within the orbit. The combined birth prevalence of these conditions is up to 30 per 100,000 population, with microphthalmia reported in up to 11% of blind children. High-resolution cranial imaging, post-mortem examination and genetic studies suggest that these conditions represent a phe...

A Case of Congenital Bilateral Anophthalmia

گزارش یک مورد آنوفتالمی(Anophthalmia)

مقدمه: آنوفتالمی و میکروفتالمی به‌صورت نبودن یک چشم یا وجود یک چشم کوچک در اربیت تعریف می‌شود که در بیش از 50درصد موارد با آنومالی‌های سیستمی همراه است و علل متعدد محیطی و کروموزومی دارد. امکان تشخیص پیش از زایمان با روش‌های تصویربرداری مثل سونوگرافی و نیز ارزیابی سیتوژن مایع آمنیون امکان‌پذیر است و درمان ایده‌ال باید هرچه زودتر بعد از زایمان آغاز شود. به‌علت نادر بودن این بیماری یعنی 30-1 در ه...

Unilateral anophthalmia in a Holstein calf.

Unilateral anophthalmia in a Holstein calf was examined morphologically. On the left side, a small cystic remnant of the eye ball (CRE) was present in the orbit. The CRE was adhered to the dura mater through an abnormal foramen formed in the orbital region of the cranial base. At this region of the left cerebral hemisphere, a porencephalic change was detected. Histologically, the pigment epithe...

QTAIM study of Bonding and Structure of Pure Atomic Clusters,Part III : Nn Clusters (n= 4,6)

DFT and QTAIM computations have been performed on numbers of pure nitrogen cluster speciesi.e. Nn (n = 4, 6) for investigating the structure and bonding. This study is critical since thesemolecules have been nominated as the good synthetic targets of High Energy Materials (HEM).0nthe other hand the decomposition mechanism is closely depends on the bonding pattern. Thislatter concept was searche...