Cataract

Blurred Vision – Causes in One Eye or Both Eyes

We are all accustomed to seeing clearly, even if we use spectacles (glasses) or contact lenses. This clarity of vision is known as visual acuity. It does not stay constant throughout life. Visual acuity can change with age and may need to be corrected. Most of us notice it as the inability to see objects clearly and we >> Read More ...

Signs of a Cataract (Eyes) and How Cataracts Affect Vision

Cataracts can occur in any age group for different reasons but most of the time it is seen in older adults due to age-related changes in the lens of the eye. It is also linked to conditions like high blood pressure (hypertension) and diabetes, which are common chronic conditions that are more often seen in older adults. >> Read More ...

Distorted Vision – Types and Causes

There are a number of different ways in which vision can be distorted and without a medical assessment it is difficult to isolate the exact mechanism and defect. The sense of vision is complex with 20/20 vision on one end and blindness at the other. However, there are many conditions that can cause a variety of forms of >> Read More ...

Night Blindness (Nyctalopia) Causes, Symptoms, Treatment

Most of us hear about night blindness being a problem with vitamin deficiencies, and specifically a vitamin A deficiency. However, this is an uncommon cause of a relatively common problem. Despite its name, a person does not go blind (complete loss of vision) at night. Instead it refers to a difficulty with sight at night >> Read More ...

Nighttime Eyesight Problems Causes and Diseases

Humans have a limited capacity to see in the dark when compared to some other mammals. This limited capacity is not something that most of us bother with as artificial lighting has largely negated the associated impairment of functioning at night. However, when this nighttime eyesight ability starts to decline then it >> Read More ...

Dim Vision (Dull Eyesight) Causes, Diseases and Treatments

Eyesight is one of the many senses that is taken for granted until we start to lose it either partially or completely. It is a complex sense and as such many disturbances in vision can arise through different ways. One aspect of vision that we do not often focus on is the brightness, contrast or intensity of the images >> Read More ...

6 Common Causes Of Bad Eyesight (Poor Vision)

Visual acuity is our ability to see clearly. As humans our eyesight may not be as impressive as some other mammals but nevertheless it serves us sufficiently to conduct our daily activities. But eyesight problems have become commonplace in the modern world for a number of different reasons. It is lifestyle-related, due to >> Read More ...

Cataract Lens Removal and Replacement Surgery Procedure Guide

Cataract surgery involves removal of the cloudy lens and replacing it with an artificial lens. Not all cataract cases require surgery. However, surgery is the only effective treatment option in advanced cataract causing problems with routine activities such as driving, reading, cooking, watching television, and so on. >> Read More ...

Tests to Detect A Cataract and Different Types of Treatment

The lens of the eye needs to be clear so that light can pass through it uninhibited and cast an image on the back of the eye (retina). Clouding or opacification of the lens of the eye, which is clear under normal circumstances, is known as a cataract. This usually develops over a long time, impairing vision and may >> Read More ...

Cataracts (Cloudy Eye Lens) Types, Causes, Symptoms, Pictures

Light enters the eye through the transparent cornea and passes through the pupil, the diameter of which is determined by the iris. It then passes through the lens of the eye which bends the light (refraction) to focus it on the back of the retina. The image projected on the retina stimulates receptors that transmits >> Read More ...