We will open our clinic all days through Golden week.
Doctor’s schedule

Green laser photocoagulator

Green laser photocoagulator

Using light energy to perform protein coagulation of the retinal periphery and macula to treat fundus diseases.
*Patients who wish to undergo laser treatment should consult with a doctor.
Medical device approval number: 22100BZX01054000

Laser Iridotomy

Laser Iridotomy (LI) is a surgical procedure of making a hole in the iris to improve the flow of aqueous humor, and is the main treatment of angle closure glaucoma.

In angle closure glaucoma, the flow of aqueous humor gets slower because the space between the iris and the lens is narrow. As a result, the pressure of the aqueous humor pushes the iris forward (toward the cornea), blocking the corner angle.

It leads the increase of intraocular pressure. As people age, the flow of aqueous humor becomes even more difficult because the lens becomes larger.

Laser iridotomy is a procedure in which the iris is punctured with a laser to prevent blockage or, in the event of an attack, to release the blockage and reduce intraocular pressure.

Applicable diseases

Target diseases for laser therapy include

Diabetic Retinopathy

Diabetic retinopathy (diabetic retinopathy) is divided into three stages of progression based on the condition of the retina and other factors.

Retinal Rupture

A retinal tear is a break in the retina that can cause retinal detachment if it progresses.

Office hours






(no lunchtime.)


Our clinic is closed on 12/31, 1/1, 1/2, 1/3.


9th floor of Hulic Shinjuku Building,3-25-1, Shinjuku, Shinjuku-ku, Tokyo, 160-0022






Online appointment


Doctor career

Director:Yasuhiro Shinkawa

(Registered Recipient of a Diploma of Ophthalmology)


Japan Ophthalmological Society
Japanese Retina and Vitreous Society
Japanese Society of Ophthalmic Surgeons

Certification of Completion

Course of Ophthalmic PDT Study Group
Number of cataract surgery up to the present:About 4000


2001 Graduate-Medical Department of Kumamoto University
2002 Department of Ophthalmology Kyoto University School of medicine
2002 Shimada Municipal Hospital
2008 Japanese Red Cross Society
2010 Kitano Hospital The Tazuke Kofukai Medical Research Institute
2014 Shinjuku-Higashiguchi Eye Clinic


Doctor:Fumiyo Hasegawa

(Registered Recipient of a Diploma of Ophthalmology)


Japan Ophthalmological Society
Japan Ophthalmologists Associasion
Japanese Association for Strabismus and Amblyopia(JASA)


1992 Graduate- Medical Department of Teikyo Univercity
2002 The head ophthalmologist at International Catholic Hospital
2020 Shinjuku-Higashiguchi Eye Clinic

Main Thesis

Sequelae of ocular trauma in schools.(Japanese)
A case of periodic upper and lower strabismus with loss of periodicity after cataract surgery(Japanese)
Quantitative analysis of eye movement during a cover test for patients with intermittent exotropia(Japanese)

We have 7 full-time service orthoptist, 2 part-time orthoptists, 1 full-time nurse and 4 part-time nurses in our clinic.
Another several ophthalmologists are working here.