What symptom does senile cataract have

summary

Cataract is a very serious eye disease, if not treated in time, there will be the risk of blindness. And in the elderly are most likely to suffer from, so what are the symptoms of senile cataract, let's summarize.

What symptom does senile cataract have

First, temporary myopia, monocular hyperopia, shadow in front of eyes, abnormal color vision and day blindness or night blindness are the early symptoms of cataract in the elderly.

Second: monocular hyperopia in the early stage of cataract, the lens is partially cloudy and partially transparent, and the object image of light projected to the retina through it will produce double or multiple shadows, thus monocular hyperopia.

Third: in the early stage of shadow cataract, the partial opacity of the lens is located in the pupil area, and the spot or sheet shadow with fixed position and unchanged shape can appear in the eyes.

matters needing attention

Day blindness or night blindness: if the lens opacity begins in the central part of the cataract, when the light intensity and pupil shrink in the daytime, the light entering the eye is blocked, so the day blindness occurs; if the lens opacity is located in the peripheral part, the dark light entering the equatorial retina is blocked at night, and the rod-shaped cells of the equatorial retina are specialized in liquid vision, so the phenomenon of liquid blindness occurs.