Often people say that 300 hours should be enough, and that it marks the ideal amount of time for the CFA level 1 exam preparation process. While that can be true for the majority of candidates, the number of hours you need to prepare depends on your study materials â the curriculum, strategy elements you will use, etc.ften people say that 300 hours should be enough, and that it marks the ideal amount of time for the CFA level 1 exam preparation process. While that can be true for the majority of candidates, the number of hours you need to prepare depends on your study materials â the curriculum, strategy elements you will use, etc.
Performing Cataract Surgery. Most cataracts are highly treatable. Cataract surgery is one of the most common surgeries performed in the United States, with approximately 98% of patients experiencing improved vision if there are no other eye conditions present.
This information was developed by the National Eye Institute to help patients and their families search for general information about cataracts. An eye care professional who has examined the patient's eyes and is familiar with his or her medical history is the best person to answer specific questions. About Cataracts What is a cataract? A cataract is a clouding of the lens in the eye that affects vision. Most cataracts are related to aging. Cataracts are very common in older people. By age 80, more than half of all Americans either have a cataract or have had cataract surgery. A cataract can occur in either or both eyes.