. The refraction of the eye; including a complete treatise on ophthalmometry; . to return in twoweeks. Second test: the ophthalmometer reads the same as at thefirst test. ILLUSTRATIVE CASES 85 Test cards and trial lenses. — ^^=i^U W. +1 D. + .50 D. cyl., 90°.L. V. = f^ : 1^ W. + 1 D. + .50 D. cyL, 90°. The ophthalmoscope showed about the same condition as onthe first test. Tlie conjunctivitis is much improved. Ordered :+ 1D. +.50 D. cyl., 90° each eye. These glasses have beenworn for more than four years with relief from her asthenopicsymptoms. Case XXVIII. Large amount of astigmatism with the

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. The refraction of the eye; including a complete treatise on ophthalmometry; . to return in twoweeks. Second test: the ophthalmometer reads the same as at thefirst test. ILLUSTRATIVE CASES 85 Test cards and trial lenses. — ^^=i^U W. +1 D. + .50 D. cyl., 90°.L. V. = f^ : 1^ W. + 1 D. + .50 D. cyL, 90°. The ophthalmoscope showed about the same condition as onthe first test. Tlie conjunctivitis is much improved. Ordered :+ 1D. +.50 D. cyl., 90° each eye. These glasses have beenworn for more than four years with relief from her asthenopicsymptoms. Case XXVIII. Large amount of astigmatism with the axisslanting relatively the same number of degrees from the verticalmeridian., 15° to the nasal side^ in each eye; Patient accepts acompound plus glass with relief of asthenopic symptoms. — March14, 1893, Mary D., aged twenty-four, in good health, but hereyes ache after she uses them for a short time for close work,especially in the evening. Ophthalmometer. — Astigmatism with the rule, 3 D., axis75° + or 165° - right eye ; 3 D., axis 105° + or 15° - left

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