. The refraction of the eye; including a complete treatise on ophthalmometry; . R. E. L. E. Fig. A third test was given which agreed with the second, andthe glasses were ordered as sphero-cylinders, minus sphereswith plus cylinders : — D.+3 D. cyl., 155° right eye; - .50 D. + 2 D. cyl., 180° left eye. In the left eye this was a lighter glass than a plus spherewith a minus cylinder, while in the right eye it made no differ-ence. Thus far, about four years, these glasses have been wornwith comfort. 204 THE REFRACTIOISr OF THE EYE Case LXXXIII. Mixed astigmatism of small amountagainst the r
. The refraction of the eye; including a complete treatise on ophthalmometry; . R. E. L. E. Fig. A third test was given which agreed with the second, andthe glasses were ordered as sphero-cylinders, minus sphereswith plus cylinders : — D.+3 D. cyl., 155° right eye; - .50 D. + 2 D. cyl., 180° left eye. In the left eye this was a lighter glass than a plus spherewith a minus cylinder, while in the right eye it made no differ-ence. Thus far, about four years, these glasses have been wornwith comfort. 204 THE REFRACTIOISr OF THE EYE Case LXXXIII. Mixed astigmatism of small amountagainst the rule in each eye ; Presbyopia ; Asthenopia ; Blepha-ritis ; Relief of asthenopia and blepharitis ivith glasses. — Septem-ber 25, 1892, Henry C, aged forty-eight years, in good healtii,has been troubled with his eyes for five or six years whenusing them for close or prolonged work. The eyelids get redalso if he persists in using the eyes, and, at times, headachesfollow. Ophthalmometer.—Astigmatism against the rule, .50 D.,axis 10°+ or 100°- right eye; .50 D., axis 16
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