You were probably not too thrilled the first time you were told you needed glasses, but as long as you must wear them, why not learn how they work? Obviously, glasses are made up of lenses and a frame. The frame can be made of plastic, metal, or a combination of the two; its function is to keep the lenses positioned in front of your eyes. The part that sits on the bridge of your nose Ls called, quite logically, the “bridge,” and the handles which it on your ears are called “temples.” Read the rest of this entry »
Color vision is routinely screened during the regular examination to detect any gross color deficiencies. For occupations requiring an excellent “color sense” such as printer, art director, stage-scenery designer, cloth dyer, etc., or for the detection of an early stage of a disease, more extensive color tests are administered. One such test requires arranging a series of round, colored discs in the correct sequence of hues. The most sophisticated color test, the anomaloscope, used mostly in research, challenges the person to mix primary green and red light sources together to match a standard yellow light. Read the rest of this entry »
Normal vision is made up of two integrated systems—accurate, sharp sight when looking directly at an object coupled with a general awareness of the scene around you. To get the idea, do this simple experiment: Look straight ahead, hold your arms out at shoulder level and wriggle your fingers. With good peripheral vision you should be aware of the motion of your fingers. (This also illustrates that at the extreme edges of your field of vision, the main attention-getter is motion.) Read the rest of this entry »
This would seem to be the opposite of the dry eye, but in reality, sometimes is a reaction to the dry eye. Older people are commonly the victims, and the doctor must differentiate between an eye “feeling” wet vs. tears actually running down the cheeks. Read the rest of this entry »
How long has the doctor been in practice?
If you have a choice, pick someone with more experience. Read the rest of this entry »
