Evaluation of Schlemm Canal Parameters Using Swept-Source Optical Coherence Tomography in Eyes That Underwent Keratoplasty

Bolac R., Ozcelik-Kose A., Imamoglu S., Yildiz E., Ozturk Y., Mangan M. S.

Eye and Contact Lens, cilt.49, sa.9, ss.379-385, 2023 (SCI-Expanded, Scopus)

  • Yayın Türü: Makale / Tam Makale
  • Cilt numarası: 49 Sayı: 9
  • Basım Tarihi: 2023
  • Doi Numarası: 10.1097/icl.0000000000001011
  • Dergi Adı: Eye and Contact Lens
  • Derginin Tarandığı İndeksler: Science Citation Index Expanded (SCI-EXPANDED), Scopus, EMBASE, MEDLINE
  • Sayfa Sayıları: ss.379-385
  • Anahtar Kelimeler: Anterior segment optical coherence tomography, Keratoconus, Keratoplasty, Schlemm canal area, Schlemm canal diameter
  • Sağlık Bilimleri Üniversitesi Adresli: Evet

Özet

Objectives:In this study, we aimed to evaluate Schlemm canal parameters using anterior segment swept-source optical coherence tomography in eyes that underwent keratoplasty and compare them with keratoconus and healthy control groups.Methods:The study included 32 patients who underwent penetrating keratoplasty or deep anterior lamellar keratoplasty once due to keratoconus and age-matched and sex-matched 20 keratoconus patients and 30 healthy controls. In all the patients, a single horizontal image centered on the central cornea was obtained from the nasal and temporal quadrants with low-intensity scanning to visualize Schlemm canal.Results:There was no statistically significant difference between the groups for age and gender (P0.05). In the keratoplasty group, the area and diameter of Schlemm canal were 2.266±1.141m2 and 160.77±65.08 m, respectively, in the nasal quadrant and 2.623±1.277 m2 and 158.81±68.05 m, respectively in the temporal quadrant, which were statistically significantly lower compared with other groups (P<0.001 for all). There was no significant difference between the penetrating and deep anterior lamellar keratoplasty subgroups for Schlemm canal parameters.Conclusion:This is the first study to report anterior segment optical coherence tomography after surgery shows SC parameters that are, on average, less than age-matched and keratoconus controls.