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




11:30-18:30(no lunchtime.)


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



Higashiikebukuro, Toshima-ku, Tokyo, 170-0013



・1-minute walk from Ikebukuro station east exit.

・Our clinic is on the right side of "LABI (Yamada Denki)".
The clinic is on the fifth floor of the building which "Bank of Mitsubishi UFJ" is on the first floor.


・Access to our clinic from JR Ikebukuro station east exit
・Access to our clinic by car




Doctor career

Director:Yoshiko Hori

(A board-certified ophthalmologist Ph.D)
English fluent


Japanese Ophthalmological Society
Japan Ophtalmologists Association
Japan Cornea Society
Japanese Society of Ophthalmic Surgeons
Japanese Society of Cataract and Refractive Surgery


1986: Graduate-School of Medicine of Iwate Medical University
1990: Post Graduate school of Iwate MedicalUniversity
1991: Iwate prefectural Ofunato hospital
1993: Department of Ophthalmology Iwate Medical University Instructor
1993: Schepens Eye Research Institute of Harvard University
1997: Department of Ophthalmology Tokyo Dental College
1997: Minami-Aoyama Eye Clinic
2008: Ichikawa general hospital Department of Ophthalmology Tokyo Dental College
2010: IkebukuroSunshineStreetEyeClinic(Director since 2010)

Main Research Presentations

The three-dimensional organization of collagen fibrils in the human cornea and sclera.(maiden name Komai)


It is said that we are gaining 80 percent of the outside information through our eyes. Because we live in the information-intensive society nowadays, we tend to overuse our eyes at any times, and tend to suffer from various kinds of eye troubles.
Therefore, ophthalmological checkup and care has become significant.
If you have any concern about your eye condition, please feel free to consult us.
We will provide careful treatment and will try our best so that you can receive our consultation with full satisfaction.


Doctor:Yasuhiro Shinkawa

(A board-certified ophthalmologist)


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


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: Ikebukuro Sunshine Street Eye Clinic


Doctor: Hiromi Namikawa

(A board-certified ophthalmologist)


Japanese Ophthalmological Society
Japan Ophtalmologists Association


2003: Graduate-Medical Department St. Marianna University 
2005: Shinkawabashi Hospital
2009: Medical Department St. Marianna University
2013: Ikebukuro Sunshine Street Eye Clinic

Main Research Presentations

"Axonal protection by brain-derived neurotropic factor associated with CREB phosphorylation in tumor necrosis factor-alpha-inducted optic nerve degeneration."(maiden name Fujino)

We have 1 full-time service orthoptist, 3 part-time orthoptists, 1 full-time nurse and 1 part-time nurses in our clinic.