The clinical and statistical review were carried out with 92 cases of herpetic keratitis at the Dept. of Ophthalmology, St. Mary´s Hospital, Catholic Medical College from Jan. 1974 to Aug. 1976. The results were as follow.
1. Herpetic keratitis was most prevalent at the age of 30´s and least at those under 10 and. 60.
2. Male and female ratio was about 3 : 1´ but the ratio under the age of 20 was even.
3. The most epidemic season was from March to June, amounting to about 56.5% of the total, and exhaustion was the most significant predisposing factor.
4. The simple type of herpetic keratitis was 45 cases (48.9%) of the total while the complicated type was 47 cases (51. 1 %). Four fifth of simple type was dendritic keratitis with 36 cases (39. 1 %) and disciform keratitis was most frequent among the complicated type with 20 cases (21.7%).
5. Involvement was even between left and right eyes. 80% of binocular cases was primarily involved at the age of over 20´s. Among binocular cases, both eyes showed similar signs and course.
6. Vision in the early stage depends on the location of keratitis invloved. Twenty two out of twenty three cases with duration over 3 years displayed and obvious decreased vision less than 0. 1 which implied that the longer the duration is, the more evident the disturbance in vision is.
7. In 30 cases the effect of 5-iodo-2´-deoxyuridine (I.D.U.) was excellent while there was no effective response to the 5-iodo-2´-deoxyuridine (I.D.U.) in 29 cases. In cases resistant against I.D.U. , cryotherapy and keratoplasty proved to be very effective.
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