Comparative study between plus and minus cylinder prescription in astigmatism.

Salman Khan, Arif Hussain


cylindrical forms and considering the interference in common optometric practice as a great number of ametropic populations have astigmatic refractive error and need cylindrical correction to relieve their symptoms.

RESEARCH DESIGN AND METHOD: 100 patients with astigmatism of age 15 up to 60 years was carried out. Visual acuity of patient was taken using log Mar Chart at distance. Visual acuity of either eye was examined in log Mar notation. Refraction was done in these patients. Refractive error of patient was recorded.

RESULT: Out of 100 Patients 52% (52) were male and 48% (48) were female. Astigmatic patients of 15-20 years were 23% (23), 21-30 years were 37% (37), 31-40 years were 7% (7), 41-50 years were 16% (16), 51-60 years were 17% (17). Preference of minus cylinder was 47% (47). Preference of plus cylinder was 40% (40). Preference of both plus and minus cylinder was 13% (13)

CONCLUSION: There is strong prevalence of accepting minus cylinder in Astigmatic patient Plus cylinder was accepted in young and old age patients. Clinician should not prescribe the high cylindrical power more than patient acceptance and full prescription should not be given at first visit.

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