We will open our clinic all days through Bon Holidays.
Doctor’s schedule


Mydriasis is about the dilation of the pupil. Normally, the size of the pupil changes due to brightness or darkness.
The pupil becomes small (Miosis) in bright places, and large in the dark.
This test is examined while the pupil is large by dilating drops (Mydriatic).
When it is necessary for the doctor to check the condition of the patient’s lenses, this test is performed.

Diseases that require Mydriasis

Fundus diseases require Mydriasis.
This is because the test makes it able to examine the edge of the fundus.
Typical diseases that require Mydriasis are retinal detachment, cataract, macular hole, diabetic maculopathy, age-related macular degeneration, and macular edema.

After Mydriasis

In this test, the doctor examines the optic nerve and the retina by an ophthalmoscope.
This examination is able to check whether you have retinal disease.

Fundus taken by the Fundus camera

This test takes about 5 minutes.


The OCT (Optical Coherence Tomography) is an instrument, which examines the tomographic image of the retina.
The result of this examination shows the condition of the retina in detail, and helps to decide treatment plans.
This test takes about 5-10 minutes.

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.