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Houston Ophthalmological Society
SOCIETY PROCEEDINGS
suggested adding to the treatment the elixir of iodid of calcium compound. W . A. S E D W I C K , Denver, had also had favorable results from this prepa ration. However, such cases sometimes lasted from one to two years. WM.
H.
CRISP,
Secretary. HOUSTON OPHTHALMOLOGI CAL SOCIETY. DECEMBER 25, 1924.
Extraction of Foreign Bodies. D R . W . L A P A T showed two foreign bodies, which he extracted from eyes with a Sweet magnet. He used a hot spot battery, which can be rented from any battery concern, instead of the di rect current which is here not availa ble. One foreign body was 1 by 2 mm. in size, and the other 3 by 4 mm. T h e large one was removed thru the origi nal wound, and the small one thru an incision in the posterior chamber. On ophthalmoscopic examination the small foreign body appeared as a piece of gold within the vitreous.
Discussion. D R . E . L . GOAR reported a case of a boy, in whom an explosion of a percussion cap forced copper par ticles into both eyeballs; the right eye was painful, blind and contained three copper particles as revealed by the X ray; it was enucleated. In the left eye the foreign body passed thru the eyeball into the orbit; there were pos terior synechia at the point of entry; the eye had fair vision. D R . N . I S R A E L enucleated an eye con taining a foreign body because of re current attacks of the iridocyclitis. D R . F . J . S L A T A P E R told of a case that he saw, in which a bird shot was local ized in the vitreous with the ophthal moscope and removed with a forceps introduced thru an incision into the vitreous. D R . R . K . D A I L Y reported a case that she saw recently, in which a foreign body was embedded in the lens of a five year old child for two years; the lens was cataractous; light perception was poor; the eye was absolutely quiet, with no irritative symptoms whatsoever; she wondered, in view of the fact that the eye had hardly any
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vision, whether it should be subjected to an operation, or left alone. D R , L A P A T thought that every for eign body should be removed, as even tually it would give trouble. Refraction. D R . W . STROZIER outlined his meth od of trial case examination. He does not urge a mydriatic on patients over 3 8 years of a g e ; he uses the hazing test; and prefers using plus spheres and minus cylinders in testing. D R . P U L L I A M reviewed the technic of retinoscopy, urging its routine use in order to acquire a high degree of efficiency. DR. E . L . GOAR read a paper on the use of Jackson's cross cylinders. He finds their use of great help in deter mining both the strength and axis of the cylinder. T h e plus one cross cylinder is especially va uable in aphakic eyes. He felt sure that anyone giving them a fair trial would not wish to do re fraction without them. D R . F . J . S L A T A P E R reviewed the dif ferent methods of testing accommoda tion, and advised a careful study of ac commodation in each case, especially in presbyopes. H e found it also ad visable to test the homatropin cases until their accommodation was paral yzed to within 3 / 4 of a diopter, before the eye is refracted. D R . D A I L Y demonstrated the essen tial parts of the Zeiss parallax refractometer, which gives an objective de termination of the glasses required by the patient at 1 2 mm. from his cornea. Behind a 6 cm. lens, on a bar is marked the position of the inverted retinal image of the fundus in a normal eye. For every diopter of refractive error this point lies 3 . 6 mm. further or near er, depending on the kind of error. F o r greater accuracy, serves an enlarge ment of 1 2 times, and the parallax of the lines on the test disc. For accurate determination it requires a paralysis of accommodation in the observed eye, and dark adaptation in the eye of the observer. I f the claim put forth for this apparatus, that after some practice it is accurate to 1 / 1 2 of a diopter, is true, it will convert refraction from a scientific into a purely mechanical procedure. R A Y K . D A I L Y , Secretary.
suggested adding to the treatment the elixir of iodid of calcium compound. W . A. S E D W I C K , Denver, had also had favorable results from this prepa ration. However, such cases sometimes lasted from one to two years. WM.
H.
CRISP,
Secretary. HOUSTON OPHTHALMOLOGI CAL SOCIETY. DECEMBER 25, 1924.
Extraction of Foreign Bodies. D R . W . L A P A T showed two foreign bodies, which he extracted from eyes with a Sweet magnet. He used a hot spot battery, which can be rented from any battery concern, instead of the di rect current which is here not availa ble. One foreign body was 1 by 2 mm. in size, and the other 3 by 4 mm. T h e large one was removed thru the origi nal wound, and the small one thru an incision in the posterior chamber. On ophthalmoscopic examination the small foreign body appeared as a piece of gold within the vitreous.
Discussion. D R . E . L . GOAR reported a case of a boy, in whom an explosion of a percussion cap forced copper par ticles into both eyeballs; the right eye was painful, blind and contained three copper particles as revealed by the X ray; it was enucleated. In the left eye the foreign body passed thru the eyeball into the orbit; there were pos terior synechia at the point of entry; the eye had fair vision. D R . N . I S R A E L enucleated an eye con taining a foreign body because of re current attacks of the iridocyclitis. D R . F . J . S L A T A P E R told of a case that he saw, in which a bird shot was local ized in the vitreous with the ophthal moscope and removed with a forceps introduced thru an incision into the vitreous. D R . R . K . D A I L Y reported a case that she saw recently, in which a foreign body was embedded in the lens of a five year old child for two years; the lens was cataractous; light perception was poor; the eye was absolutely quiet, with no irritative symptoms whatsoever; she wondered, in view of the fact that the eye had hardly any
321
vision, whether it should be subjected to an operation, or left alone. D R , L A P A T thought that every for eign body should be removed, as even tually it would give trouble. Refraction. D R . W . STROZIER outlined his meth od of trial case examination. He does not urge a mydriatic on patients over 3 8 years of a g e ; he uses the hazing test; and prefers using plus spheres and minus cylinders in testing. D R . P U L L I A M reviewed the technic of retinoscopy, urging its routine use in order to acquire a high degree of efficiency. DR. E . L . GOAR read a paper on the use of Jackson's cross cylinders. He finds their use of great help in deter mining both the strength and axis of the cylinder. T h e plus one cross cylinder is especially va uable in aphakic eyes. He felt sure that anyone giving them a fair trial would not wish to do re fraction without them. D R . F . J . S L A T A P E R reviewed the dif ferent methods of testing accommoda tion, and advised a careful study of ac commodation in each case, especially in presbyopes. H e found it also ad visable to test the homatropin cases until their accommodation was paral yzed to within 3 / 4 of a diopter, before the eye is refracted. D R . D A I L Y demonstrated the essen tial parts of the Zeiss parallax refractometer, which gives an objective de termination of the glasses required by the patient at 1 2 mm. from his cornea. Behind a 6 cm. lens, on a bar is marked the position of the inverted retinal image of the fundus in a normal eye. For every diopter of refractive error this point lies 3 . 6 mm. further or near er, depending on the kind of error. F o r greater accuracy, serves an enlarge ment of 1 2 times, and the parallax of the lines on the test disc. For accurate determination it requires a paralysis of accommodation in the observed eye, and dark adaptation in the eye of the observer. I f the claim put forth for this apparatus, that after some practice it is accurate to 1 / 1 2 of a diopter, is true, it will convert refraction from a scientific into a purely mechanical procedure. R A Y K . D A I L Y , Secretary.