Derek Waldner
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View article: Integrating Virtual Reality Visual Perimetry Into Clinical Practice: A Review of Devices, Applications, and Limitations
Integrating Virtual Reality Visual Perimetry Into Clinical Practice: A Review of Devices, Applications, and Limitations Open
Visual field testing has long been a cornerstone of glaucoma diagnosis, monitoring, and management. The evolution of perimetry, from the early Tangent screen formalized by Julius Hirschberg in the 1870s to modern standard automated perimet…
View article: Trends in medico-legal cases against Canadian ophthalmologists: a 10-year retrospective review (2013–2022)
Trends in medico-legal cases against Canadian ophthalmologists: a 10-year retrospective review (2013–2022) Open
This review highlights gaps in Canadian ophthalmic care, empowering ophthalmologists to address these concerns. Future work will focus on detailed assessments of cases with peer expert concerns and developing specific recommendations for c…
View article: Pairwise Discernment of AffectNet Expressions with ArcFace
Pairwise Discernment of AffectNet Expressions with ArcFace Open
This study takes a preliminary step toward teaching computers to recognize human emotions through Facial Emotion Recognition (FER). Transfer learning is applied using ResNeXt, EfficientNet models, and an ArcFace model originally trained on…
View article: Face and Content Validity of an Artificial Eye Model for Secondary Intraocular Lens Fixation via Yamane Technique
Face and Content Validity of an Artificial Eye Model for Secondary Intraocular Lens Fixation via Yamane Technique Open
The Bioniko Okulo BR8 shows promise as a valid tool for practicing secondary IOL fixation via the Yamane technique. Considering recent guidelines in competency-based ophthalmology education programs, this model may be a valuable tool over …
View article: Segmental Suture Gonioscopy-Assisted Transluminal Trabeculotomy: Comparison of Superior Versus Inferior Hemisphere Outcomes
Segmental Suture Gonioscopy-Assisted Transluminal Trabeculotomy: Comparison of Superior Versus Inferior Hemisphere Outcomes Open
Précis: Analysis of efficacy, safety, and risk factors for failure of superior versus inferior 180-degree segmental gonioscopy-assisted transluminal trabeculectomy showed no significant difference between approaches, with novel risk factor…
View article: Stabilization of refractive error and associated factors following small incision phacoemulsification cataract surgery
Stabilization of refractive error and associated factors following small incision phacoemulsification cataract surgery Open
Background Accumulating evidence suggests that refractive stabilization occurs rapidly following small incision cataract surgery. Nonetheless, many guidelines still suggest waiting four to 6 weeks before prescribing corrective lenses. This…
View article: Transgenic Expression of <i>Cacna1f</i> Rescues Vision and Retinal Morphology in a Mouse Model of Congenital Stationary Night Blindness 2A (CSNB2A)
Transgenic Expression of <i>Cacna1f</i> Rescues Vision and Retinal Morphology in a Mouse Model of Congenital Stationary Night Blindness 2A (CSNB2A) Open
These data have relevance in the treatment of CSNB2A and in understanding how photoreceptor integration might be achieved in retinas in which photoreceptors have been lost, such as retinitis pigmentosa, age-related macular degeneration, an…
View article: Ab Interno Canaloplasty in Open-angle Glaucoma Patients Combined With In Vivo Trypan Blue Aqueous Venography
Ab Interno Canaloplasty in Open-angle Glaucoma Patients Combined With In Vivo Trypan Blue Aqueous Venography Open
Purpose: To demonstrate canalogram patterns observed when trypan blue tracer is combined with oculoviscoelastic device during ab interno canaloplasty, and discuss surgical results and potential implications for diagnosis, prognosis, and tr…
View article: Face and content validity of the SimulEYE A-Vit model for anterior vitrectomy
Face and content validity of the SimulEYE A-Vit model for anterior vitrectomy Open
View article: Avian Adeno-Associated Viral Transduction of the Postembryonic Chicken Retina
Avian Adeno-Associated Viral Transduction of the Postembryonic Chicken Retina Open
With this vector, the postembryonic chick retina can now be used for preclinical trials of gene therapy for prevention and treatment of human retinal disease.
View article: Channeling Vision: Voltage-Gated Calcium Channels of Rods and Cones
Channeling Vision: Voltage-Gated Calcium Channels of Rods and Cones Open
Congenital stationary night blindness (CSNB) is a set of inherited diseases characterized by defects in neurotransmission from photoreceptors to second-order neurons in the retina. CSNB2A, specifically, is caused by mutations in Cacna1f – …
View article: Channeling Vision: Ca<sub>V</sub>1.4—A Critical Link in Retinal Signal Transmission
Channeling Vision: Ca<sub>V</sub>1.4—A Critical Link in Retinal Signal Transmission Open
Voltage-gated calcium channels (VGCC) are key to many biological functions. Entry of Ca 2+ into cells is essential for initiating or modulating important processes such as secretion, cell motility, and gene transcription. In the retina and…
View article: Cone dystrophy and ectopic synaptogenesis in a <i>Cacna1f</i> loss of function model of congenital stationary night blindness (CSNB2A)
Cone dystrophy and ectopic synaptogenesis in a <i>Cacna1f</i> loss of function model of congenital stationary night blindness (CSNB2A) Open
Congenital stationary night blindness 2A (CSNB2A) is an X-linked retinal disorder, characterized by phenotypically variable signs and symptoms of impaired vision. CSNB2A is due to mutations in CACNA1F, which codes for the pore-forming α
View article: An Avian Adeno-Associated Viral Vector for Visualization of Post-Natal Chick Retinal Circuitry
An Avian Adeno-Associated Viral Vector for Visualization of Post-Natal Chick Retinal Circuitry Open