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Otago Medical School staff profiles

Dr Kelechi Ogbuehi

PositionSenior Lecturer
DepartmentDepartment of Medicine (Dunedin)
QualificationsBSc(Hons) PhD FAAO
Research summaryVision - Corneal ectasias, Intraocular pressure assessment, Corneal biomechanical properties
TeachingUndergraduate: MBChB programme (years 3 - 6). Postrgraduate: Postgraduate Diploma in Ophthalmic Basic Sciences (Optics Course Convenor); Supervising Masters of Ophthalmology candidates.
MembershipsFellow of the American Academy of Optometry

Research

Kelechi graduated with a Bachelor of Science (Honours) degree in Optometry from the University of Benin in 1992, and with a Ph.D. in Optometry and Vision Sciences from the University of Cardiff in 1997.

Kelechi's postgraduate research involved investigating the factors that underlie the endothelial pump mechanism by which the human cornea maintains its relatively dehydrated state. Kelechi's research focus shifted toward clinical research in the decade and a half he spent as a professor of optometry and vision science in the Middle East, during which time he was recognized for his contributions to raising the level of education and standards of practice of the profession in Saudi Arabia in particular.

Kelechi's current research endeavours are focused on: The assessment of human corneal biomechanical properties and their impact on the measured intraocular pressure (IOP); refractive surgery to manage corneal ectasias; the expanding role of optometrists as primary eyecare providers; and the accurate assessment of IOP (the key to the diagnosis and management of glaucoma).

Publications

Stevenson, C. H., Hong, S. C., & Ogbuehi, K. (2018). Development of an artificial intelligence system to classify pathology and clinical features on retinal fundus images. Clinical & Experimental Ophthalmology. Advance online publication. doi: 10.1111/ceo.13433

Beigi, B., Khandwala, M., Degoumois, A., Ogbuehi, K. C., & Gupta, D. (2018). Lower eyelid excursion: A functional and cosmetically relevant parameter in the treatment of lower eyelid retraction. Journal of Plastic, Reconstructive & Aesthetic Surgery. Advance online publication. doi: 10.1016/j.bjps.2018.10.015

Subasinghe, S. K., Ogbuehi, K. C., & Dias, G. J. (2018). Current perspectives on corneal collagen crosslinking (CXL). Graefe's Archive for Clinical & Experimental Ophthalmology. Advance online publication. doi: 10.1007/s00417-018-3966-0

Al-Tuwairqi, W. S., Osuagwu, U. L., Razzouk, H., AlHarbi, A., & Ogbuehi, K. C. (2017). Clinical evaluation of two types of intracorneal ring segments (ICRS) for keratoconus. International Opthalmology, 37(5), 1185-1198. doi: 10.1007/s10792-016-0385-2

Al-Tuwairqi, W. S., Ogbuehi, K. C., Razzouk, H., Alanazi, M. A., & Osuagwu, U. L. (2017). Agreement between autorefraction and subjective refraction in keraring-implanted keratoconic eyes. Eye & Contact Lens, 43(2), 116-122. doi: 10.1097/icl.0000000000000244

Journal - Research Article

Stevenson, C. H., Hong, S. C., & Ogbuehi, K. (2018). Development of an artificial intelligence system to classify pathology and clinical features on retinal fundus images. Clinical & Experimental Ophthalmology. Advance online publication. doi: 10.1111/ceo.13433

Beigi, B., Khandwala, M., Degoumois, A., Ogbuehi, K. C., & Gupta, D. (2018). Lower eyelid excursion: A functional and cosmetically relevant parameter in the treatment of lower eyelid retraction. Journal of Plastic, Reconstructive & Aesthetic Surgery. Advance online publication. doi: 10.1016/j.bjps.2018.10.015

Al-Tuwairqi, W. S., Osuagwu, U. L., Razzouk, H., AlHarbi, A., & Ogbuehi, K. C. (2017). Clinical evaluation of two types of intracorneal ring segments (ICRS) for keratoconus. International Opthalmology, 37(5), 1185-1198. doi: 10.1007/s10792-016-0385-2

Al-Tuwairqi, W. S., Ogbuehi, K. C., Razzouk, H., Alanazi, M. A., & Osuagwu, U. L. (2017). Agreement between autorefraction and subjective refraction in keraring-implanted keratoconic eyes. Eye & Contact Lens, 43(2), 116-122. doi: 10.1097/icl.0000000000000244

AlAnazi, S. A., Osuagwu, U. L., AlMubrad, T. M., Ahmed, H. K., & Ogbuehi, K. C. (2015). Effectiveness of in-office blood pressure measurement by eye care practitioners in early detection and management of hypertension. International Journal of Ophthalmology, 8(3), 612-621. doi: 10.3980/j.issn.2222-3959.2015.03.32

Al-Tuwairqi, W. S., Osuagwu, U. L., Razzouk, H., & Ogbuehi, K. C. (2015). One-year clinical outcomes of a two-step surgical management for keratoconus-topography-guided photorefractive keratectomy/cross-linking after intrastromal corneal ring implantation. Eye & Contact Lens, 41(6), 359-366. doi: 10.1097/icl.0000000000000135

Ogbuehi, K. C., Almaliki, W. H., Alqarni, A., & Osuagwu, U. L. (2015). Reliability and reproducibility of a handheld videorefractor. Optometry & Vision Science, 92(5), 632-641. doi: 10.1097/opx.0000000000000566

Ogbuehi, K. C., & Osuagwu, U. L. (2014). Corneal biomechanical properties: Precision and influence on tonometry. Contact Lens & Anterior Eye, 37(3), 124-131. doi: 10.1016/j.clae.2013.09.006

Abahussin, M., AlAnazi, M., Ogbuehi, K. C., & Osuagwu, U. L. (2014). Prevalence, use and sale of contact lenses in Saudi Arabia: Survey on university women and non-ophthalmic stores. Contact Lens & Anterior Eye, 37(3), 185-190. doi: 10.1016/j.clae.2013.10.001

Ogbuehi, K. C., Khan, F. M. J., Alanazi, S. A., AlMubrad, T. M., & Osuagwu, U. L. (2014). Transmittance properties of contact lens multipurpose solutions and their effects on a hydrogel lens. Annual Research & Review in Biology, 4(15), 2484-2500. doi: 10.9734/ARRB/2014/7934

Osuagwu, U. L., Ogbuehi, K. C., & AlMubrad, T. M. (2014). Changes in ultraviolet transmittance of hydrogel and silicone-hydrogel contact lenses induced by wear. Eye & Contact Lens, 40(1), 28-36. doi: 10.1097/ICL.0000000000000007

Osuagwu, U. L., & Ogbuehi, K. C. (2014). UV-vis light transmittance through tinted contact lenses and the effect of color on values. Contact Lens & Anterior Eye, 37(3), 136-143. doi: 10.1016/j.clae.2013.09.004

Osuagwu, U. L., Briggs, S. T., Chijuka, J. C., Alanazi, S. A., & Ogbuehi, K. C. (2014). Factors influencing Saudi Arabian optometry candidates' career choices and institution of learning: Why do Saudi students choose to study optometry? Clinical & Experimental Optometry, 97(5), 442-449. doi: 10.1111/cxo.12182

AlMubrad, T. M., AlShehri, F. H., Ogbuehi, K. C., & Osuagwu, U. L. (2013). Comparison of the influence of nonpreserved oxybuprocaine and a preserved artificial tear (thera tears) on human corneal thickness measured by two pachymeters. Journal of Ocular Pharmacology & Therapeutics, 29(5), 462-468. doi: 10.1089/jop.2012.0215

Osuagwu, U. L., Ogbuehi, K. C., & AlMubrad, T. M. (2013). Assessing the role of optometrists in the control of systemic hypertension in Saudi Arabia. Journal of the American Society of Hypertension, 7(4), 305-316. doi: 10.1016/j.jash.2013.03.001

Osuagwu, U. L., & Ogbuehi, K. C. (2013). Evaluation of the comparative effect of tetracaine on central corneal thickness measured by a contact and noncontact pachymeter. Journal of Ocular Pharmacology & Therapeutics, 29(1), 68-74. doi: 10.1089/jop.2011.0242

Ogbuehi, K. C., & Osuagwu, U. L. (2012). Repeatability and interobserver reproducibility of Artemis-2 high-frequency ultrasound in determination of human corneal thickness. Clinical Ophthalmology, 6(1), 761-769. doi: 10.2147/OPTH.S31690

Ogbuehi, K. C., Chijuka, J. C., & Osuagwu, U. L. (2012). Changes in central corneal thickness values after instillation of oxybuprocaine hydrochloride 0.4%. Contact Lens & Anterior Eye, 35(5), 199-202. doi: 10.1016/j.clae.2012.05.004

Ogbuehi, K. C. (2012). Corneal biomechanical parameters and intraocular pressure: The effect of topical anesthesia. Clinical Ophthalmology, 6, 871-878. doi: 10.2147/OPTH.S32322

Ogbuehi, K. C., Mucke, S., & Osuagwu, U. L. (2012). Influence of central corneal thickness on measured intraocular pressure differentials: Nidek RKT-7700, Topcon CT-80 NCTs and Goldmann Tonometer. Ophthalmic & Physiological Optics, 32(6), 547-555. doi: 10.1111/j.1475-1313.2012.00945.x

Ogbuehi, K. C. (2012). The influence of lens power and center thickness on the intraocular pressure measured through soft lenses: A comparison of two noncontact tonometers. Contact Lens & Anterior Eye, 35(3), 118-128. doi: 10.1016/j.clae.2012.01.002

AlMubrad, T. M., Osuagwu, U. L., AlAbbadi, I., & Ogbuehi, K. C. (2011). Comparison of the precision of the Topcon SP-3000P specular microscope and an ultrasound pachymeter. Clinical Ophthalmology, 5, 871-876. doi: 10.2147/OPTH.S21247

Ogbuehi, K. C., Chijuka, J. C., & Osuagwu, U. L. (2011). Two-position measurement of intraocular pressure by PT100 noncontact tonometry in comparison with Goldmann tonometry. Clinical Ophthalmology, 5, 1227-1234.

AlMubrad, T. M., & Ogbuehi, K. C. (2010). On repeated corneal applanation with the Goldmann and two non-contact tonometers. Clinical & Experimental Optometry, 93(2), 77-82. doi: 10.1111/j.1444-0938.2010.00453.x

Ogbuehi, K. C., & AlMubrad, T. M. (2010). Evaluation of the intraocular pressure measured with the Ocular Response Analyzer. Current Eye Research, 35(7), 587-596. doi: 10.3109/02713681003698871

Ogbuehi, K. C., & AlMubrad, T. M. (2008). Accuracy and reliability of the Keeler Pulsair EasyEye non-contact tonometer. Optometry & Vision Science, 85(1), 61-66. doi: 10.1097/OPX.0b013e31815ed742

AlMubrad, T. M., & Ogbuehi, K. C. (2008). The effect of repeated applanation on subsequent IOP measurements. Clinical & Experimental Ophthalmology, 91(6), 524-529. doi: 10.1111/j.1444-0938.2008.00298.x

Ogbuehi, K. C. (2006). Assessment of the accuracy and reliability of the Topcon CT80 non-contact tonometer. Clinical & Experimental Optometry, 89(5), 310-314. doi: 10.1111/j.1444-0938.2006.00068.x

AlMubrad, T., & Ogbuehi, K. C. (2006). Nott and MEM dynamic retinoscopy: Can they be used interchangeably? Archives of Medical Science, 2(2), 85-89.

Al-Mubrad, T. M., & Ogbuehi, K. C. (2006). Smith-method assessment of anterior chamber depth for screening for narrow anterior chamber angles. Indian Journal of Ophthalmology, 54(3), 165-168.

Ogbuehi, K. C., & AlMubrad, T. M. (2005). Repeatability of central corneal thickness measurements measured with the Topcon SP2000P specular microscope. Graefe's Archive for Clinical & Experimental Ophthalmology, 243(8), 798-802. doi: 10.1007/s00417-005-1149-2

Ogbuehi, K. C., & AlMubrad, T. M. (2005). Limits of agreement between the optical pachymeter and a noncontact specular microscope. Cornea, 24(5), 545-549. doi: 10.1097/01.ico.0000151506.11447.ed

Osuobeni, E. P., Oduwaiye, K. A., & Ogbuehi, K. C. (2000). Intra-observer repeatability and inter-observer agreement of the Smith method of measuring the anterior chamber depth. Ophthalmic & Physiological Optics, 20(2), 153-159.

Wigham, C. G., Turner, H. C., Ogbuehi, K. C. C., & Hodson, S. A. (1996). Two pathways for electrogenic bicarbonate ion movement across the rabbit corneal endothelium. Biochimica et Biophysica Acta: Biomembranes, 1279(1), 104-110. doi: 10.1016/0005-2736(95)00232-4

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Journal - Research Other

Subasinghe, S. K., Ogbuehi, K. C., & Dias, G. J. (2018). Current perspectives on corneal collagen crosslinking (CXL). Graefe's Archive for Clinical & Experimental Ophthalmology. Advance online publication. doi: 10.1007/s00417-018-3966-0

Osuagwu, U. L., & Ogbuehi, K. C. (2016). In response: UV-vis light transmittance through tinted contact lenses and the effect of color on values. Contact Lens & Anterior Eye, 39(3), 244-246. doi: 10.1016/j.clae.2016.02.001

Osuagwu, U. L., Ogbuehi, K. C., & AlMubrad, T. M. (2015). In response: Changes in ultraviolet transmittance of hydrogel and silicone hydrogel contact lenses induced by wear. Eye & Contact Lens, 41(4), 252-254. doi: 10.1097/ICL.0000000000000160

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