Eye sight problems can affect the eye’s overall health, making it necessary to get regular eye exams to detect any eye health problems. Some of these problems can be easily diagnosed and treated with contact lenses, glasses, or medications. Others may require surgery. For many people, the early diagnosis of these problems is vital for treating the problem effectively. The most common eye sight problems are refractive errors and nearsightedness. These are caused by the shape of the eye and irregular bending of light. This causes images to appear blurry. Nearsightedness is a problem that gradually reduces the ability to focus on nearby objects as you get older.
Other eye problems can be more serious, affecting vision. These include migraines and glaucoma. Diagnosis of eye sight problems is essential to prevent further degeneration of the eyes. It is important to make regular appointments with your doctor to ensure your eyesight remains healthy. Low vision is often caused by age-related macular degeneration, diabetic neuropathy, and eye injuries.
This condition can run in families and can worsen during childhood. As we age, our eyes lose flexibility and our lenses lose the ability to focus light on the retina. The first step in a diagnosis is to have an eye exam. An eye exam involves a test called visual acuity. The eye doctor will ask the patient to read progressively smaller letters or numbers on a chart with both eyes open. If the letters are too small, the patient will experience blurring vision.
Noncontact tonometry is a quick test that gives a fairly accurate reading of eye pressure. It can be performed at any time of the day, and does not require eye numbing drops. The machine does not make direct contact with the patient, who simply rests his or her chin on a chin holder to look directly into the machine.
Although a noncontact tonometry test may sound scary, the process is completely safe. There is a small risk of the cornea being scratched, but this is usually minor and will heal within a day or two. An abnormally high eye pressure may indicate glaucoma, while a low pressure is not cause for alarm.