Eyeglass prescription. Using a phoropter to determine a prescription for eyeglasses. An eyeglass prescription is an order written by an eyewear prescriber, such as an optometrist or ophthalmologist, that specifies the value of all parameters the prescriber has deemed necessary to construct and/or dispense corrective lenses appropriate for a patient.
Cancer is a leading cause of death in Australia â more than 43,200 people died from cancer in 2011. The most common causes of cancer deaths are not necessarily the most frequently occurring cancers. While lung cancer is the fifth most common type of cancer overall, it is the leading cause of cancer death in Australians.he most common causes of cancer deaths are not necessarily the most frequently occurring cancers. While lung cancer is the fifth most common type of cancer overall, it is the leading cause of cancer death in Australians.
1 Sharks*: Accounted for 25 deaths between 2000 and (March) 2012 in Australia, about 2 a year.  Crocodiles: Historically, crocodiles account for less than one death per year here in Australia, although that is increasing slightly as the crocodile population rises following the ban on crocodile hunting in 1971.