Ahsen HussainMD FRCOphth

Associate Professor

Phone: 902-473-2307
Fax: 902-473-2839
Mailing Address: 
Department of Ophthalmology & Visual Sciences
QEII Health Sciences Centre
2035-2 West Victoria Building
1276 South Park Street

Halifax, NS B3H 2Y9
Research Topics:
  • Eyelid and orbital oncology
  • Facial nerve palsy
  • Lacrimal surgery
  • Paediatric oculoplastic surgery
  • Cosmetic surgery


  • MBChB (The University of Manchester, UK)
  • FRCOphth (The Royal College of Ophthalmologists, UK)

Research interests

My research interests include eyelid and orbital oncology, facial nerve palsy, paediatric oculoplastic surgery and lacrimal system disorders. Current projects include:

  • Children’s fornix project at The Hospital for Sick Children, Toronto
  • Aetiology of primary acquired nasolacrimal duct obstruction in adults
  • Ultrasonic paediatric dacryocystorhinostomy (DCR) surgery
  • Computer-assisted surgery (surgical navigation) in the orbit

Selected publications

  • Incidence of Sympathetic Ophthalmia Following Intraocular Surgery: A Systematic Review and Meta-Analysis. Bondok MS, He B, Tao BK, Bondok M, Hussain A, Ing E. Ophthalmology. 2024 Jan 10:S0161-6420(24)00050-2
  • Evaluating ChatGPT on Orbital and Oculofacial Disorders: Accuracy and Readability Insights. Balas M, Janic A, Daigle P, Nijhawan N, Hussain A, Gill H, Lahaie GL, Belliveau MJ, Crawford SA, Arjmand P, Ing EB. Ophthalmic Plast Reconstr Surg. 2024 Mar-Apr 01;40(2):217-222
  • Outcomes of Endonasal Dacryocystorhinostomy Performed for Functional Nasolacrimal Obstruction With Delay on Dacryoscintigraphy. Hodgson K, Hussain A. J Craniofac Surg. 2023 Oct 10
  • Influence of orbital decompression on upper eyelid retraction in Graves' orbitopathy: a systematic review and meta-analysis. Al-Qadi M, Hussain A. Orbit. 2023 Aug 23:1-6
  • Corneal deterioration following cataract surgery in patients with a history of orbital radiotherapy. Dugandzic J, Hodgson K, Hussain A. Can J Ophthalmol. 2023 Jul 7:S0008- 4182(23)00187-4
  • A Novel Report of Suspected Prostate Adenocarcinoma to Orbital Roof Meningioma Metastasis. Wilson DS, Mohammad S, Hussain A. Ophthalmic Plast Reconstr Surg. 2023 Sep-Oct 01;39(5):e166-e168
  • Dynamic eyelid reconstruction in facial nerve palsy. Hussain A. Surv Ophthalmol. 2023 Sep-Oct;68(5):985-1001
  • Congenital Aberrant Lacrimal Gland Ductules Presenting as a Nonhealing Upper Eyelid Lesion. Hodgson K, Pollmann AS, McFadden K, Hussain A. Ophthalmic Plast Reconstr Surg. 2022;38(3):e87-e89
  • Orbito-cranial schwannoma-a multicentre experience. Shapira Y, Juniat V, Dave T, et al. [published online ahead of print, 2022 Jan 9]. Eye (Lond). 2022;10.1038/s41433-021- 01850-1
  • Periocular invasive melanoma manifestation in a patient using bimatoprost: case report and literature review. Deveau AP, da Silva FN, Ly TY, Hussain A. [published online ahead of print, 2021 Jul 28]. Orbit. 2021;1-8
  • Current clinical diagnosis and management of orbital cellulitis. Sara A. Khan, Ahsen Hussain & Paul O. Phelps (2021). Expert Review of Ophthalmology, 16:5, 387-399
  • Maximizing the Virtual Patient Encounter in Oculofacial Plastic Surgery. Hussain A. Ophthalmic Plast Reconstr Surg. 2021 May-Jun 01;37(3S):S122-S123
  • Eyelid-Cheek Junction Soft-Tissue Perineurioma: Case Report and Controversies. Zhao LD, Jarrar FS, Hussain AA, Hyrcza MD, Harvey JT. Ophthalmic Plast Reconstr Surg. 2021 Apr 28
  • Outcomes of conjunctival-Müller's muscle resection surgery with and without epinephrine in local anesthetic. Mohammad S, Hussain A. Orbit. 2020 Nov 5:1-5
  • Terminology and Etymology in Oculoplastic Surgery. Mohammad S, Hussain A. J Craniofac Surg. 2020 Mar 19
  • Guidelines for vismodegib in the management of advanced and metastatic periocular basal cell carcinoma. Hussain A et al. Can J Ophthalmol. 2019 Dec 31. pii: S0008- 4182(19)30989-5
  • Ribociclib associated vortex keratopathy. Saeed D, Hussain A. Can J Ophthalmol. 2020 Jan 6. pii: S0008-4182(19)30833-6
  • Reply Re: "A Systematic Review and Meta-analysis of Methods for Reducing Local Anesthetic Injection Pain Among Patients Undergoing Periocular Surgery".
    Hussain A, Gostimir M. Ophthalmic Plast Reconstr Surg. 2019 Jul/Aug;35(4):413
  • Considerations for Ophthalmic Complications. Hussain A. JAMA Facial Plast Surg. 2019 Jan 24
  • A Systematic Review and Meta-Analysis of Methods for Reducing Local Anesthetic Injection Pain Among Patients Undergoing Periocular Surgery. Gostimir M, Hussain A. Ophthalmic Plast Reconstr Surg. 2019 Jan 9
  • Dry Eye Symptoms Following Blepharoptosis Surgery in Elderly (≥80 years old) vs non-Elderly Patients. Tooley AA, Alnemi S, Hussain A, Bradley EA. Expert Review of Ophthalmology 13(6).
  • Meta-analysis of randomized controlled trials in dacryocystorhinostomy with and without silicone intubation. Ing E, Winn B, Hussain A, Zakrzewski H, Bedi H, Nijhawan N. In Press: Canadian Journal of Ophthalmology
  • Perceptions and use of computer-assisted surgery (CAS) in the orbit. Hussain A, Nijhawan N, DeAngelis D, Oestreicher J. Orbit. 2018 Jul 11:1-4
  • Progressive optic nerve glioma: orbital biopsy technique using a surgical navigation system. Hussain A, Wan M, DeAngelis D. Can J Ophthalmol. 2018 Feb;53(1):e18-e22
  • Complete ophthalmoplegia in Ipilmumab and Nivolumab combination treatment for metastatic melanoma. Alnabulsi R, Hussain A, DeAngelis D. Orbit. 2018 Oct;37(5):381- 384
  • Clinical Decision-Making: Heuristics and Cognitive Biases for the ophthalmologist. Hussain A and Oestreicher J. Surv Ophthalmol. 2018 Jan - Feb;63(1):119-124
  • Is Gastroesophageal Reflux Disease related to Primary Acquired Nasolacrimal Duct Obstruction? Mehta S, Ying GS, Hussain A, Harvey JT. Orbit. 2017 Oct 17:1-5.
  • Fluid leak following deep mid-facial laceration. Khan M, Hussain A, Gill H. JAMA Ophthalmol. 2017 Oct 1;135(10):1115-1116
  • Haller cells: a risk factor for spontaneous orbital floor fracture? Hussain A, J Oestreicher, N Nijhawan. Can J Ophthalmol. 2017 Oct;52(5):e185-e188
  • Orbit cellular blue nevus complicated by malignant melanoma. Hussain A, M Sidiropoulos, S Das, D Munoz, N Nijhawan. Can J Ophthalmol. 2017 Jun;52(3):e111- e113
  • Phialophora Verrucosa infection of an orbital implant peg system – case report and review of the literature. H Bedi, Hussain A et al. Canadian Journal of Pathology; Vol 9 (1): 59-73
  • Endovascular management of a traumatic infraorbital pseudoaneurysm causing orbital compartment syndrome: a case report. V Leung, Hussain A, T Krings, D DeAngelis. Ophthal Plast Reconstr Surg. 2016 Nov 10.
  • Facial nerve palsy in pregnancyHussain A, C Nduka, P Moth, R Malhotra. J Obstet Gynaecol. 2017 Jan 31:1-7  
  • Pott’s puffy tumour presenting as a necrotic eyelid lesion. S Low, Hussain A, H Gill. E Liu; accepted. Can J Ophthalmol. 2017 Feb;52(1):e25-e28
  • Conjunctival Malignancies, A Hussain and N Nijhawan. American Academy of Ophthalmology Oculofacial Plastic Surgery Center, February 2016
  • Conjunctival Melanoma, N Nijhawan and A Hussain. American Academy of Ophthalmology Oculofacial Plastic Surgery Center, February 2016
  • New technique in the management of the dropped nucleus using perfluorocarbon liquid. S Prasad, A Hussain. Ocular Surgery News 2013
  • Value of anti-VEGF treatment in choroidal neovascularisation associated with Autosomal Recessive Bestrophinopathy. S Madhusadhan, A Hussain, R Hagan, J Sahni. Case report, Case Reports in Ophthalmology, February 2012
  • Feature Analysis of Spectral-Domain Optical Coherence Tomography in Central Serous Chorioretinopathy. A Hussain, J Hare, A Stangos, Y Zheng, J Sahni. Investigative Ophthalmology & Visual Science 2011 52 (14), 3686-3686
  • Analysis of glaucoma surgery outcomes – a clinical study. S Madhusadhan, A Hussain, S Aazem, M Abu-Ain, P Ranjit, BioMed Central Ophthalmology, Feb 2010
  • The Prodigal Haptic. A Hussain, S Prasad. Online edition of Journal of Cataract and Refractive Surgery, June 2012
  • Micro-Incision Cataract Surgery (MICS) – past, present and the future? S Syed, A Hussain, S Prasad. Eye News Sep/Oct 2012
  • A national survey of the management of eye emergencies in the accident and emergency departments by senior house officers. Ten years on – has anything changed? D Sim, A Hussain, A Tabbel, S Daly, A Ionides. Emergency Medicine Journal, 2008:25,76-77
  • A reverse uptake pattern during Technetium-99 stress myocardial perfusion imaging does not predict flow limiting coronary artery disease. EJ Smith, A Hussain, M Manoharan, HJ Testa, NP CurzenInternational Journal of Cardiovascular Imaging, November 2004

Selected awards and honours  

  • Promotion to Associate Professor, Department of Ophthalmology and Visual Sciences, Halifax, NS June 2022
  • Clinical Teaching Award, Department of Ophthalmology and Visual Sciences, Dalhousie University, June 2022
  • Visiting Professor, Department of Ophthalmology, University of Toronto, ON, 2019
  • Visiting Professor, Department of Ophthalmology, Queen’s University, ON, 2019
  • Royal College of Ophthalmologists Ethicon Foundation Award
  • Royal College of Ophthalmologists Dorey-Lister Award
  • Completion of research fellowship in oculoplastic surgery, Mayo Clinic, Rochester, Minnesota, USA
  • University of Manchester Joseph Ellis Scholarship 1997-2002


  • Fellow of American Society of Ophthalmic Plastic and Reconstructive Surgeons (ASOPRS)
  • Fellow of Canadian Association of Facial Plastic and Reconstructive Surgeons (CAFPRS)
  • Member of Canadian Society of Ophthalmic Plastic Surgeons (CSOPS)
  • Member of American College of Surgeons
  • University of Toronto Alumni Association
  • Fellow of Royal College of Ophthalmologists, UK