Sclerals First, what are scleral contact lenses and how do they work? A scleral contact lens is a large diameter rigid contact lens that is specifically designed to vault over the entire cornea (front of your ...
What is low vision? What is low vision? Many people think that they have low vision when they need to wear glasses or have a high prescription, but low vision is a much broader field of optometry that is not always addre...
Presbyopia Presbyopia Presbyopia is the normal loss of near focusing ability that occurs with age. It is sometimes also called the short arm syndrome. Most people begin to notice the effects of presbyopia someti...
By Gisela Steyn - B.Optom UJ(SA) CAS(SA) Ocular coherence tomography (OCT) What is an ocular coherence tomographer (OCT)? Optical coherence tomography (OCT) is a non-invasive imaging test. OCT uses light waves to take cross-section pictures of your retina (back of eye) or co...
By Mardeen Tait - (UFS) CAS(SA) Vision and Learning VISION AND LEARNING The visual system is more than just the eyes, it is an integration of the entire body. Vision is the ability to visualize, understand and apply the information that comes through t...
By Gisela Steyn - B.Optom UJ(SA) CAS(SA) Corneal topography What is a corneal topography? Corneal topography is a diagnostic tool that provides us with a detailed description of the front surface of the eye, called the cornea. This tool creates a three-dimensi...
Essilor VisiOffice System Essilor VisiOffice System To get the full benefit of modern lens designs, it is necessary to go beyond the traditional measurements of pupillary distance and fitting heights. Visioffice is the cutting...
Polarized vs UV Protection Are you one of those people who think UV protection sunglasses and Polarized Sunglasses are the same? The answer is No, they are not. UV protection protects your eyes from the dangerous rays of the su...
By Gisela Steyn - B.Optom UJ(SA) CAS(SA) Fundus photography What is Fundus Photography? Fundus photography documents the retina (back of the eye), the neurosensory tissue in our eyes which translates the optical images we see into the electrical impulses our b...
Cas(Sa) By Clive De Jongh - B.Optom (Uofs) Sunglass lenses and tints Sunglasses have become an important way for individuals to express their personality or enhance their style. Some prefer a sophisticated look, while other s like a plain design. Either way, it is impo...
By Thabang Malambe - B.Optom (UJ) Can Diabetes lead to Glaucoma? What is diabetes? This is a disease that occurs when our blood sugar level is too high, so blood sugar is our main source of energy and it comes from the food that we eat. Insulin is a hormone made fr...
By Francois van der Merwe B(Optom) UJ Swollen eyelids? You could be suffering from Blepharitis Blepharitis is a common condition that causes inflammation of the eyelids and is typically caused by overgrowth of bacteria that live along the margins of the eyelids and the base of the eyelashes. It...
