Written by ELAINE louieasil 1986, this is a digital version of an article from The Times Print Archive, before it starts online in 1996. To keep these articles as they appear initially, the Times will not change, edit, or update them. There are occasional copywriting errors or other problems during the digitization process. Please send a report of such issues to archid_feedback @ nytimes. com. Paul malantz, lighting consultant for Jules Fisher and Paul malantz, said: \"The problem with lighting today is that lighting is so specific . \"in Manhattan. The glow of grandma\'s silk The shade floor and desk lamp provided are good reading lights. But this light is no longer popular. The solution to finding a good reading light is not necessarily to re- Create grandma\'s living room. The key is to know what makes the eyes feel comfortable and least tired while reading, and then place the light with the right shade and bulb at the right height and angle. \"The eyes will change with age . \" Alan Jay Friedman is an assistant professor of ophthalmology at New York University Medical Center. \"The older you are, the more light you need to read. \'\' Dr. Eleanor Fay, director of ophthalmology for the blind low vision service lighthouse, said: \"The demand for more light in the eyes is growing by 1% per year. You can read 40 watts or almost no light when you are 10 years old. You need about 100 watts when you are 60. \"But doctors warn that too much light or glare is as bad as too little light. \"When light shines from a highly reflective surface, it is fatigue, especially disturbing, for older people with cataract and retina problems,\" Dr. Faye says. Lights with shadows can reduce glare, focus and adjust light. What you want is Jo Anne Lindsley, lighting consultant at Synergy Consultants Inc. , said: \"In the bright room, the Reading area is illuminated by a generous, dedicated pool of light, and the surrounding area is illuminated by comfortable ambient lightingin Manhattan. \"What you don\'t want is the high contrast between the area you are reading and the far end of the room,\" said Carol Crane of Manhattan\'s Cline Bettridge Bernstein lighting design. \"The eyes are always removed from the printed page and come back. When the eyes drift from the bright area to the dark shadow area, it expands in the dark. In a high- In contrast, the eyes become tired. Although there are many ways to illuminate the room, experts believe that a particular kind of shadow light is best for reading. Advertising in all shades, the lighting consultant believes that translucent shades are the most comfortable to read. It focuses the light down to read, but also spreads up and down the side, illuminating the ceiling and the adjacent walls. \"The shadow should be as translucent as possible if the bulb itself is not visible,\" Mr. Cline says. Traditional Silk-tone light works very well, he said. Marantz, \"because the transmission of light is moderate, it is neither too bright nor too low. However, if the silk tone is too expensive or inappropriate, there is a translucent tone made of less expensive materials such as parchment paper, fiberglass or linen. In glass tones, most of them are made of transparent, Opal, or sand \"The explosion of glass will pass too much light . \" Although amber or green glass arranged in white milk glass only provides \"lower\" light, Marantz said. These color shades do not illuminate the room, but can work as reading lights, especially on the table. However, an opaque shadow is less efficient than a translucent shadow because it does not project light horizontally. Miss Linsley suggested that in order for the metal shadow to cast a large amount of light in the adjacent area, it had a reflector inside or was painted matte white. When choosing the light bulb for the reading lamp, \"Old three\"way, 50-100-150-watt soft- \"The light bulb is the most comfortable and useful . \"Cline says. \"People are not only used to its warmth, but also the different brightness levels are adapted to the changes in the environment and the various needs of the family. One reason, Sir. Crane prefers the flexibility of the three. Single bulb 100- The Watt bulb controlled by the dimmer switch is in its structure. A 50-100- The 150 bulb is designed with two filaments, one 50 W and one 100 W, which can be used separately or in combination to provide more consistent glare at any time. A single- When the wattage is reduced, the filament bulb controlled by the dimmer switch is darkened to yellow light. Although there are now small halogen lamps, they must be used in lamps with large shadows and equipped with dimmers or highlight tubes for readinglow switch. \"If you use a small light bulb under a small shadow, it will produce a small light pool and a clear shadow, both of which are not conducive to reading,\" Mr. Cline says. There are also compact fluorescent bulbs, but they may not be bright enough to read. No matter which light you choose Table, floor or wall-mounted - Experts suggest that it should be placed on your side and slightly behind for maximum comfort. \"In the general area of the face, the light may be just above the level of the eye . \" \"You shouldn\'t see the light source itself,\" Marantz said. For reading, the lights can be placed on both sides. But in order to avoid the shadow of the arm while writing and reading, right- The person on hand should put the light on the left. \"The ideal light may be a hybrid light of Russo, which rotates 360 degrees and can be lifted and lifted, and there is also a translucent traditional light,\" said Miss Linsley . \". The lights shown on the ads are chosen because they provide flexibility. Arms or shades can be moved- They invested in a medium to large pool of light. Most people will accept 100-watt or three-bulbs. But the final arbitrator of a good reading lamp does not have to be an architect or lighting consultant. \"Your eyes,\" Dr. Friedman said, \"Tell you what they want. They show signs of fatigue if the light is uncomfortable, such as burning sensation, redness, eyebrow pain, headache and squinting. \"A version of this article was printed on page C00006 of the National edition on April 10, 1986 with the title: expert advice on choosing a good reading light.