Assoc. Prof. Dr. Bilgehan Sezgin Asena

Assoc. Prof. Dr. Bilgehan Sezgin Asena


Dr. Bilgehan Sezgin graduated from the Ege University Faculty of Medicine in 1998 and worked at the Dokuz Eylul University department of physiology as a research assistant from 1999 to 2000. Dr. Sezgin then worked at the Ophthalmology Clinic at the Izmir Teaching Hospital until 2004, after which time she began working at Kaskaloglu Eye Hospital. Her surgical specialty is refractive and cataract surgery. Dr. Sezgin speaks English. She lives with her husband, Dr. Erden Asena, and family in Izmir.

Training & Credentials


  • Bachelor of Medicine: Ege University / Medical Faculty (1992- 1998), Izmir- Turkey
  • Physiology Residency Program: Dokuz Eylul University / Department of Physiology (1999- 2000), Izmir- Turkey
  • Ophthalmology Residency Program: Izmir Training and Research Hospital / Department of Ophthalmology (2000- 20004), Izmir- Turkey.
  • She has been working in Kaskaloglu Eye Hospital since 2004.


  • Femtosecond laser-assisted cataract surgery (FLACS)
  • Refractive lens exchange surgery (RLE)
  • Advanced technology intraocular lenses (toric, multifocal, trifocal)
  • Phakic intraocular lenses (ICL)
  • Excimer laser surgery (femtosecond lasik, lasek, PRK)
  • Keratoconus treatments (cross-linking, intracorneal rings, keratoconus lenses)


  • Wavelight excimer laser
  • Intralase femtosecond laser
  • ICL Phakic Intraocular lens
  • LenSx femtosecond laser
  • Intacs

Professional Background:

  • Experienced in cataract and refractive surgery.
  • One of the most active users of femtosecond laser systems, mutifocal intraocular lenses, and excimer laser surgery in Turkey.
  • Performed more than 15.000 intraocular lens surgeries and 10.000 corneal refractive surgeries.
  • Participated in ‘’Video Cataratta Refrattiva International Live Surgery’’ as a surgeon (2015).
  • Panelist and invited speaker in national and international meetings. Recently attended:

AXIS Workshop Advanced, Barcelona, 2019.

‘’Corneal Topography’’.

Invited Speaker

Alcon Innovative Technology Summit, İstanbul, 2018.

‘’PanOptix Trifocal IOL Design & Refractive Results’’.


Alcon Innovative Technology Summit, İstanbul, 2018.

‘’Presbyopia- Correcting IOLs’’.


IMPACT Katarakt ve Astigmatizma Yönetimi, İstanbul, 2018.

‘’Korneal Topografi’’.


World Ophthalmology Congress, Barcelona, 2018.

‘’Indisputable and Debatable Place of Intraocular Phakic Lenses’’.


Alcon Innovation Meeting, Russia, 2018.

‘’Laser Assisted Refractive Cataract Surgery’’.

Invited Speaker

Alcon Innovation Meeting, South Africa, 2017.

‘’Presbyopia-Correcting Intraocular Lenses’’.

Invited Speaker

TOD 1. Canlı Cerrahi Günleri, İstanbul, 2017.

‘’Premium IOL’ lerde Biyometri ve Astigmatizma Yönetimi’’



  • Femtosecond laser-assisted cataract surgeries reported to the European Registry of Quality Outcomes for Cataract and Refractive Surgery: Baseline characteristics, surgical procedure, and outcomes. (Lundström M, Dickman M, Henry Y, Manning S, Rosen P, Tassignon MJ, Young D, Stenevi U; European Society of Cataract and Refractive Surgeons Femtosecond Laser–Assisted Cataract Surgery Study Collaborators. J Cataract Refract Surg. 2017 Dec;43(12):1549-1556. doi: 10.1016/j.jcrs.2017.09.029.)
  • Retinal and choroidal thickness after femtosecond laser-assisted and standard phacoemulsification. (Asena BS, Karahan E, Kaskaloglu M. Clin Ophthalmol. 2017 Aug 21;11:1541-1547. doi: 10.2147/OPTH.S127792. eCollection 2017.)
  • Comparison of hybrid and cross fragmentation patterns in terms of phaco time and corneal effects. (Asena BS, Kaskaloglu M. Lasers Surg Med. 2018 Apr;50(4):319-323. doi: 10.1002/lsm.22764. Epub 2017 Nov 24.)
  • Comparison of the efficacy and safety of femtosecond laser capsulotomy between mature and non-mature cataracts. (Asena BS, Kaskaloglu M. Lasers Surg Med. 2016 Aug;48(6):590-5. doi: 10.1002/lsm.22509. Epub 2016 Apr 22)
  • Laser-assisted cataract surgery: soft lens assisted interface (SoftFit) versus direct contact interface. (Asena BS, Kaskaloglu M. Eur J Ophthalmol. 2016 May-Jun;26(3):242-7. doi: 10.5301/ejo.5000684. Epub 2015 Oct 6.)
  • Early Experience in Femtosecond Laser-Assisted Cataract Surgery (Asena BS, Erdur SK, Kaskaloglu M. Turk J Ophthalmol 2015;45:97-101.)

Get in Touch!

Reach out to us to have your questions answered, schedule appointments and discover the most suitable solutions for you.  


+90 532 596 16 01


+90 532 596 16 01

Email Us

Contact Form