Kronberger 61距离地球大约13,000光年，是天鹅座的一名“成员”。它几近完美的球形；相较于其他3,000余行星星云，它可谓十分不同寻常。

Kronberger 61 lies roughly 13, 000 light-years away in the Cygnus constellation and is almost perfectly round-an oddity when compared with the other 3, 000 or so planetary nebulae already discovered.

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目的比较半球形巩膜瓣和花瓣样巩膜瓣羟基磷灰石(HA)眼座一期植入的手术效果。

Objective Comparison the surgery effect of ha implantation at period I in half ball scleral flap and petal like scleral flap.

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结果表明：寄生真菌的分生孢子座黑色，半球形；

The result shows that the pycidium is black, hemispherical;

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