OPHTHALMIC LASER TREATMENT DEVICE

Japanese Patent JP2017064189

A

PROBLEM TO BE SOLVED: To provide an ophthalmic laser treatment device that emits a laser beam having a preferable spot size to a treated area.SOLUTION: An ophthalmic laser treatment device comprises: an observation optical system that observes a patient's eye; a first emission optical system that emits a first laser beam for treatment to the patient's eye; a second emission optical system that emits a second laser beam for treatment to the patient's eye; a first guide optical system that emits first guide light for guiding emission of the first laser beam to the patient's eye; and a second guide optical system that emits second guide light for guiding emission of the second laser beam to the patient's eye. The second emission optical system makes a spot size of the second laser beam on a reference plane bigger than a spot size of the first laser beam on the reference plane by moving a light focusing position of the second laser beam away from or closer to the reference plane where the observation optical system comes into focus. The first guide optical system and the second guide optical system focus the first guide light and the second guide light on the reference plane.SELECTED DRAWING: Figure 10

JP6813053	Laser treatment device
JP7181636	ophthalmic laser system
WO/1994/005216	COLLAGEN MODULATORS FOR USE IN PHOTOABLATION EXIMER LASER KERATECTOMY

ASAKURA TAKEHIRO
TOMITA SEIKI
UENO TOKIO

JP2015195132A

April 06, 2017

September 30, 2015

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NIDEK KK

A61F9/008

JP2007181634A	2007-07-19
JPH03118060A	1991-05-20
JP2002325789A	2002-11-12
JP2012050571A	2012-03-15
JPH07163613A	1995-06-27

US20110196350A1

2011-08-11

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