The blind spot can be defined as the area around vehicle where driver cannot see through mirrors without turning their head or taking eyes off road. Similar spots occur in energy policy. Blind forecasting economic development and creating policy documents. This study uncovers potential controversies sustainability assessment of supply technologies. A composite index was constructed to compare d...

a survey on the cause of blindness in iran was carried out among 870 blinds from all parts of the country. 305 people with the same cause, 27 with different causes were blind from both eyes and 538 were blind from one eye. in present paper the first ten causes of blindness is pointed out and these causes are compared in the three different zones of ten countries, also the cause of blindness in ...

Animals adapted to dark ecotopes may experience selective pressure for retinal reduction. No previous studies have explicitly addressed the molecular basis of retinal development in any fossorial mammal. We studied retinal development and function in the Iberian mole Talpa occidentalis, which was presumed to be blind because of its permanently closed eyes. Prenatal retina development was relati...

Fifteen to 20% of premature infants weighing below 1500 g develop variable degrees of acute retrolental fibroplasia (RLF). Approximately 5% of those infants who develop RLF can be expected to become blind. A prospective study was carried out to evaluate if early cryopexy can prevent this blindness. The study showed that, among 533 infants admitted to the neonatal intensive care unit between Jul...

BACKGROUND Complete blindness generally results in the loss of synchronization of circadian rhythms to the 24-hour day and in recurrent insomnia. However, some blind patients maintain circadian entrainment. We undertook this study to determine whether some blind patients' eyes convey sufficient photic information to entrain the hypothalamic circadian pacemaker and suppress melatonin secretion, ...

BACKGROUND To analyze the demographics, indications, and surgical outcomes of anophthalmic surgery (enucleation and evisceration) at Jordan University Hospital during a 5-year period. METHODS We conducted a retrospective chart review of patients who had undergone evisceration or enucleation between August 2006 and June 2011. The data collected included age at time of surgery, sex, affected ey...

There is a ghost in the universe. Many things are “invisible” because they do not emit light at wavelengths we can see: newborn stars glowing infrared, microwaves from start of universe, and rapidly spinning neutron all shine, just it parts spectrum that human eyes blind to. But these still light, kind. We could call this “type one” invisibility: invisible point view beings but perfectly visibl...

In zebrafish larvae, the first response when detecting prey is an oculomotor behavior; eye convergence. Eye convergence increases overlap between visual fields of left and right eyes to prepare for tracking prey. A high vergence angle maintained throughout prey-tracking capture swim phases, enhancing binocular depth. Since discovery convergence, hundreds articles reporting on this behavior in h...