Dry eyes

What are the types of dry eye?

Dry eye syndrome may be subdivided into 2 main types as follows:

  1. Aqueous tear-deficient dry eye is a disorder in which the lacrimal glands fail to produce enough of the watery component of tears to maintain a healthy eye surface.
  2. Evaporative dry eye may result from inflammation of the meibomian glands, also located in the eyelids. These glands make the lipid or oily part of tears that slows evaporation and keeps the tears stable.

The B.U.T. (Break Up Time)

The B.U.T. (Break Up Time) test evaluates tear quality by measuring how long it takes for dry spots to appear on the cornea after a blink. The Eye care practitioner applies fluorescein to the patient's eye and then observes the tear film after a blink while the patient tries to avoid the next blink. The practitioner counts by seconds until a dry spot appears. A break up time of more than 10 seconds is normal, from five to 10 seconds is marginal, and less than five seconds is low.

Three-layer Structure of Tears

Maintaining tear structure is important for the tears covering our eyes to function normally. Tears have three distinct layers from the outer surface: oil, water and mucus. Problems with any of these layers can cause dry eyes.

Tear duct

When the eye blinks, the lid pushes the tears across the eye into the drains (puncta) at the inner corner. The drains empty into channels (canaliculi) that connect the?eye?with the nose. The channels drain into a tear sac (lacrimal sac) that lies beside the nose. The sac narrows into the tear duct (lacrimal duct), which drains through the nasal bone into the nostril.

Office Hours

Weekday,Saturday

11:30-13:45/15:00-19:30

Sunday,Holiday

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

Reception Closing Time

Weekday,Saturday 19:30
Sunday,Holiday 18:30

Closing The Office

12/31, 1/1, 1/2, 1/3

Access

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

5F, 1-5-6,
Higashiikebukuro, Toshima-ku, Tokyo  170-0013

It's a 1-minute walk from Ikebukuro station east exit.

TEL:03-3981-6363

Map

Doctor Career

Director:Yoshiko Hori

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

Memberships

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

Career

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)


 

Doctor:Yasuhiro Shinkawa

(A board-certified ophthalmologist)

Memberships

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

Career

2001: Graduate-Medical Department of Kumamoto University
2002: Entered 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)

Memberships

Japanese Ophthalmological Society
Japan Ophtalmologists Association

Career

2003: Graduate-Medical Department St. Marianna University 
2005: Synthesis 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)


 

Doctor:Tetsuya Kawakita

(A board-certified ophthalmologist)

Career

1995: Graduate-Medical Department of Kanazawa University
1995~1998: Student at Ocular Surface Center
2011~: Ikebukuro Sunshine Street Eye Clinic

3 orthoptists(full time) and a nurse(part-time).