short-focus lens

Clear lens phacoemulsification for correction of presbyopia characterized by a short axial length and thick lens

透明晶状体摘除治疗短眼轴和厚晶状体老视眼

Clinical features include microspherophakia, lens ectopia, glaucoma, brachydactyly, short status and so on.

临床表现为球形晶状体、晶状体脱位、青光眼、短指、身材矮小等。

By adopting short focal lens the design of the catadioptric omnidirectional distortionless imaging system for horizontal scene can miniaturize imaging system, but which may influence on system image quality due to the distortion of short focal lens.

采用短焦距透镜设计水平场景无畸变折反射全景成像系统，会使系统更加小型化，然而短焦距透镜的畸变会对系统成像产生影响。

Objective: To evaluate the safety and effectiveness of clear lens phacoemulsification for correction of presbyopia characterized by a short axial length and thick lens.

目的：评价透明晶状体摘除治疗短眼轴、厚晶状体老视眼的可行性和有效性。

For the space coupling of pumped solid-state laser, the short focal lens are excelled long focal lens.

对于空间耦合泵浦固体激光器的光纤耦合LD的输出光束，使用短焦距的透镜要优于使用长焦距的透镜。