Clinical and epidemiological characteristics of primary corneal ectasia in the Republic of Bashkortostan

    Abstract

    M.M. Bikbov, E.L. Usubov, V.K. Surkova, K.Kh. Oganisyan

    Clinical and epidemiological characteristics of primary corneal ectasia in the Republic of Bashkortostan

    Ufa Eye Research Institute, Ufa

    We studied the morbidity level according to the incidence and prevalence of primary corneal ectasia (PCE), their structure in the Republic of Bashkortostan (RB) according to the materials of annual reports of the ophthalmological service for the period of 2010-2015. Over the period of study we analyzed 477 identified cases of the PCE (954 eyes). The average prevalence and incidence rate of the PCE according to appealability in the RB per 100000 people was 6.3 and 1.1, respectively. The incidence of PCE according to appealability increased from 1.5 to 1.8 (on 20.0%), the prevalence - from 4.6 to 7.7 (67.4%). We noted that the incidence of PCE prevails among the urban population compared to the rural population (ratio 3:1 or 75.5% against 24.5%). A higher incidence of primary corneal ectasia is revealed in the representatives of the South Caucasus (the Chechens) and North Caucasian nationalities (Azerbaijanian, Armenians) than among the most common nationalities of the Republic – Russian and Bashkir. Among the forms of primary corneal ectasia the keratoconus prevailed (90.6%), and more often than the I stage was diagnosed the II stage of the disease (38.3%).

    Key words: primary corneal ectasia, prevalence, morbidity, keratoconus.