The eye sight chart is a device that helps measure subjective visual acuity.


eye's overall health

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. 

more serious

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.

cause for concern

Double vision can also be a cause for concern. The presence of double vision in one eye can be indicative of a brain tumor or early stages of cataract, or it can be an age-related change in eye shape. However, it should never be ignored if it is new and causes difficulties with reading and balance.
An eye sight test is a series of tests conducted to determine the condition of your vision and ability to focus and discern objects. It also includes other tests related to your eyes. The examination is performed by an optometrist, ophthalmologist, or orthoptist. Among other things, it can be used to detect eye problems.
A Noncontact Tonometer is a medical device that measures eye pressure without touching the eye. The test can detect high pressure in the eye, which can indicate glaucoma. Noncontact tonometry is also helpful in determining the health of the optic nerve, which transmits visual information from the eye to the brain.

Noncontact tonometry

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. 

completely safe

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.