| Today televisions and computers have become | | | | while close images appear blurred. This is rectified |
| indispensible part of our life that we cannot | | | | with the use of single vision glasses having |
| visualize our life without these products. The huge | | | | concave lenses. |
| popularity of these gadgets and gizmos has given | | | | • Astigmatism - The eyes of the people |
| birth to several visual disorders leaving people in | | | | suffering this problem look in two different |
| discomfort and distress. But due to the latest | | | | directions at right angles to each other. Single |
| development and research in the field of medical | | | | vision glasses are suggested having a cylindrical |
| science there is a solution found to almost every | | | | power. |
| problem. Single vision glass is one such product | | | | • Presbyopia – This deformity usually |
| made to help people fight with visual problems like | | | | occurs in people who are over the age of forty |
| near and far sightedness, presbyopia etc. and | | | | years. People find difficulty in reading as the lens |
| provide natural vision. | | | | of the eye becomes less flexible and are not able |
| Single vision glasses are made of lenses, which | | | | to focus on nearby objects. This problem can be |
| have only one viewing area throughout the glass. | | | | rectified with the use of reading glasses in the |
| This glass is mostly used by the people who have | | | | single vision category. |
| to wear glasses before the age of forty years | | | | Single vision lenses are available in the following |
| and is used for correcting far distance, near | | | | lens designs: |
| distance or reading problems. Available in different | | | | • Hi-lux spheric – This design of lens |
| variety of materials like plastic, glass, | | | | features a single central radius on the front |
| polycarbonate and hi index, single vision glasses | | | | surface and according to the prescription have |
| are used for reading, viewing distant object or for | | | | different radii on the back surface. |
| intermediate vision. | | | | • Nulux aspheric – This lens has radius |
| Single vision glasses accentuate natural vision and | | | | from the centre of the front surface to its edge |
| help in the following visual disorders: | | | | and the radii of the lens form a purer focal point, |
| • Near-sightedness – This is a common | | | | leading to less deformation in the periphery of the |
| visual problem in which faraway images appear to | | | | lens. |
| be blurred while close images are clear. This | | | | • Nulux EP bi-aspheric: This lens is calculated |
| problem is rectified with the use of single vision | | | | and produced based on the Free Form principle in |
| glasses having convex-lenses. | | | | which every detail of the lens are precisely |
| • Far-sightedness – In this type of visual | | | | determined to create a balance between natural |
| disorder people can clearly see faraway images | | | | sight and the correction required. |