) The majority of visually impaired people in this country wears soft contact lenses. 2) These lenses, made of water-absorbing plastic, were developed in Czechoslovakia and were introduced into the United States in 1964. 3) The first soft lens was approved by the FDA in 1971. 4) In recent years, soft lenses has become more popular than hard lenses. 5) There is several reasons for this increasing popularity. 6) Many wearers find the soft lenses more comfortable. 7) Also, unlike the case with hard lenses, no break-in period are necessary for soft lenses. 8) But there is drawbacks as well. 9) The soft lens cost a little more than the hard lens. 10) In addition, the life of soft lenses are often measured in months compared to years for hard lenses. 11) They tear easily and can become damaged by handling. 12) Also, soft contact lenses corrects only a limited range of visual problems. 13) Nevertheless, for those who can afford them, soft contact lenses are a safe, simple, and attractive solution to the problem of poor vision. 14) Another somewhat controversial alternative today are the disposable lenses. 15) The supply cost is slightly more than the replacement cost for soft contact lenses. 16) However, the advantage is that people can wear these lenses over an extended period of time. 17) There is a danger, though, when people who wants to save money wear the lenses too long and create the potential for eye infection. 18) In other words, with all the options available today for eye correction, people need to study those options carefully before making a final decision. correct this
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Answer:
The majority of visually impaired people in this country wears soft contact lenses. 2) These lenses, made of water-absorbing plastic, were developed in Czechoslovakia and were introduced into the United States in 1964. 3) The first soft lens was approved by the FDA in 1971. 4) In recent years, soft lenses has become more popular than hard lenses. 5) There is several reasons for this increasing popularity. 6) Many wearers find the soft lenses more comfortable. 7) Also, unlike the case with hard lenses, no break-in period are necessary for soft lenses. 8) But there is drawbacks as well. 9) The soft lens cost a little more than the hard lens. 10) In addition, the life of soft lenses are often measured in months compared to years for hard lenses. 11) They tear easily and can become damaged by handling. 12) Also, soft contact lenses corrects only a limited range of visual problems. 13) Nevertheless, for those who can afford them, soft contact lenses are a safe, simple, and attractive solution to the problem of poor vision. 14) Another somewhat controversial alternative today are the disposable lenses. 15) The supply cost is slightly more than the replacement cost for soft contact lenses. 16) However, the advantage is that people can wear these lenses over an extended period of time. 17) There is a danger, though, when people who wants to save money wear the lenses too long and create the potential for eye infection. 18) In other words, with all the options available today for eye correction, people need to study those options carefully before making a final decision. correct this
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Answer:
The majority of visually impaired people in this country wear soft contact lenses. 2) These lenses, made of water-absorbing plastic, were developed in Czechoslovakia and introduced into the United States in 1964. 3) The first soft lens was approved by the FDA in 1971. 4) In recent years, soft lenses have become more popular than hard lenses. 5) There are several reasons for this increasing popularity. 6) Many wearers find the soft lenses more comfortable. 7) Also, unlike the case with hard lenses, no break-in period is necessary for soft lenses. But there are drawbacks as well. 9) The soft lens costs a little more than the hard lens. 10) In addition, the life of soft lenses is often measured in months compared to years for hard lenses. 11) They tear easily and can become damaged by handling. 12) Also, soft contact lenses correct only a limited range of visual problems. 13) Nevertheless, for those who can afford them, soft contact lenses are a safe, simple, and attractive solution to the problem of poor vision. 14) Another somewhat controversial alternative today is disposable lenses. 15) The supply cost is slightly higher than the replacement cost for soft contact lenses. 16) However, the advantage is that people can wear these lenses for an extended period of time. 17) There is a danger, though, when people who want to save money wear the lenses too long and create the potential for eye infection. 18) In other words, with all the options available today for eye correction, people need to study those options carefully before making a final decision.
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