48 Mt. Ware's Observations on the near 



the book a little nearer to her, than she had been previously 

 accustomed to place it. — The second case occurred in a patient 

 about the same age, who, in the course of the last year, was at- 

 tacked with an inflammation in both eyes. By the use of leaches 

 and cooling medicines, it was speedily removed, and, after- 

 wards, she was much gratified, by finding that the necessity 

 for using glasses when she read, which had existed many 

 years, was removed ; and that she could see both near and 

 distant objects correctly, without any extraneous help. The 

 amendment in this lady's sight continued, however, only a 

 few weeks ; after which she was again obliged to use the 

 same convex glasses in looking at small near objects, which 

 she had used before her eyes became inflamed. — In addition 

 to these cases, I beg leave to add the information I have re- 

 ceived from an eminent mathematical instrument maker, about 

 fifty years of age, who has long made use of convex glasses 

 to assist his sight in reading. He tells me, that when he 

 has been employed many hours together, for several suc- 

 cessive days, in looking through a double microscope that 

 magnifies twenty-eight times, (in order to enable him to 

 mark the degrees on a small brass plate) he has afterwards 

 been able, repeatedly, for a few weeks, to read without his 

 glasses ; but then the amendment gradually ceases, and he is 

 soon obliged to return to the use of the same glasses that he 

 had worn before. 



In the instances that have been mentioned, the distant sight- 

 edness affected persons who were considerably advanced 

 in life : but in the three that follow, a similar affection of the 

 sight occurred in those that were young; and a like good 

 effect was produced by the use of evacuating remedies. One 



