細菌（真菌）性角膜炎の最近7年間の統計

A seven-year appraisal of bacterial keratitis

　最近7年間（1979-1985）に当科で経験した細菌（真菌）性角膜炎152例，153眼の症例について統計的観察を行った．症例の年齢は50歳代，60歳代および70歳代の順に多く，平均は50.1歳であった．誘因は角膜異物31眼が最も多かったが，この他にコンタクトレンズ装用17眼（SCL12眼，HCL5眼），内眼手術の既往13眼，ステロイド点眼8眼も多くを占め，誘因の複雑化が明らかとされた．症例のうち初診時すでに抗生物質治療をうけていたものは125眼（81％）であった．培養で菌を検出しえたものは153眼中60眼（39％）であった．検出菌はStaphylococcus epidermidisが最も多く33眼であった．次いでStaphlococcusaureus13眼，Pseudomonas aeruginosa9眼，Streptococcus Pneumoniae7眼，真菌は1眼であった．菌検出例60眼のうち起炎菌を推定したものが36眼であった．角膜潰瘍からのPs aer-uginosaの検出率は最近低下してきている傾向を示した．

We evaluated a consecutive series of 153 eyes, 152 patients, who presented with bacterial keratitisduring the 7-year period from 1979 through 1985.

The majority of patients were aged 50 years or more, with an average of 50.1 years. The presumed predisposing factors were variable : corneal foreign body 31 eyes, contact lens wear 17 eyes, consequent to intraocular surgery 13 eyes, and topical use of corticosteroid 8 eyes.

Four-fifths of the patients (125 eyes, 81%) were already under treatment with antibiotics when theywere referred to us. Positive corneal culture was obtained, therefore, in only 60 eyes (39%). The isolated organisms were : Staphylococcus epider-midis 33 eyes, Staphylococcus aureus 13, Pseudomonas aeruginosa 9, Streptococcus pneumoniae 7 and fungus 1. There was a definite tendency for Pseudomonas aeruginosa to be less frequently involved in corneal infection whencompared with our data over the previous 7-year period (1964-70).

Rinsho Ganka (Jpn J Clin Ophthalmol) 41(6) : 629-633, 1987