The camera comprises a double-slit special camera device, a medium focal length lens and a camera body. The special device has a photographing slit, an illuminating slit, a flash bulb and a glaring window. The camera is for the simultaneous photographing of the reflection of both the patient's corneas and eyegrounds, and for the analysis of the photographs. It may be used for the general check of children's eye diseases such as strabismus, anisometropia or ametropia, which seriously affect the growth of sight. It enjoys the following advantages: convenience, rapidness, economy, objectivity and exactness, and it is suitable for aphthalmic department for children's health protection workers.