Richard J. McMullan

Works (8)

Updated: July 8th, 2023 21:18

2013 journal article

Diode laser endoscopic cyclophotocoagulation in the normal equine eye

VETERINARY OPHTHALMOLOGY, 16(2), 97–110.

By: J. Harrington n, R. McMullen  n, J. Cullen  n, N. Campbell n & B. Gilger n 

author keywords: diode laser; endoscopic cyclophotocoagulation; equine; glaucoma; histopathology
MeSH headings : Animals; Cadaver; Endoscopes / veterinary; Eye; Horses; Lasers, Semiconductor; Light Coagulation / instrumentation; Light Coagulation / methods; Light Coagulation / veterinary; Ophthalmologic Surgical Procedures / methods; Ophthalmologic Surgical Procedures / veterinary
TL;DR: Diode ECP between 0.90 and 1.14 J is a potential treatment option for glaucoma in horses based on visible tissue effects and target ciliary epithelium damage and may limit the use of an anterior chamber approach in phakic horses. (via Semantic Scholar)
UN Sustainable Development Goal Categories
Sources: Web Of Science, ORCID
Added: August 6, 2018

2013 journal article

Phacoemulsification and +14 diopter intraocular lens placement in a Saddlebred foal

VETERINARY OPHTHALMOLOGY, 16(2), 140–148.

By: J. Harrington n, R. McMullen  n, A. Clode n & B. Gilger n 

author keywords: cataract; equine phacoemulsification; foal; intraocular lens; ocular ultrasound; retinoscopy
MeSH headings : Animals; Cataract / pathology; Cataract / therapy; Cataract / veterinary; Cataract Extraction / methods; Cataract Extraction / veterinary; Female; Horse Diseases / surgery; Horse Diseases / therapy; Horses; Lens Implantation, Intraocular / veterinary; Phacoemulsification / veterinary
TL;DR: A +14 diopter (D) intraocular lens (IOL) IOL may be the appropriate choice following lens extraction in a foal to achieve refraction near emmetropia at maturity at maturity. (via Semantic Scholar)
UN Sustainable Development Goal Categories
Sources: Web Of Science, ORCID
Added: August 6, 2018

2013 journal article

The effect of 1% tropicamide-induced mydriasis and cycloplegia on spherical refraction of the adult horse

Veterinary Ophthalmology, 17(2), 120–125.

By: R. McMullen  n, M. Davidson n & B. Gilger n 

author keywords: cycloplegia; equine ophthalmology; mydriasis; pupillometry; streak retinoscopy; tropicamide
MeSH headings : Animals; Eye / drug effects; Female; Horses; Muscarinic Antagonists / administration & dosage; Muscarinic Antagonists / pharmacology; Mydriasis / chemically induced; Mydriasis / veterinary; Tropicamide / administration & dosage; Tropicamide / pharmacology
TL;DR: Optimal streak retinoscopy results may be obtained prior to, or 40- to 45-min following the application of topical tropicamide 1%, once near-maximal dilation has been achieved. (via Semantic Scholar)
UN Sustainable Development Goal Categories
14. Life Below Water (OpenAlex)
Sources: Web Of Science, ORCID, Crossref
Added: August 6, 2018

2012 journal article

A retrospective comparison of surgical removal and subsequent CO2 laser ablation versus topical administration of mitomycin C as therapy for equine corneolimbal squamous cell carcinoma

VETERINARY OPHTHALMOLOGY, 15(4), 254–262.

By: A. Clode n, C. Miller, R. McMullen  n & B. Gilger n 

author keywords: cornea; equine; mitomycin; squamous cell carcinoma
MeSH headings : Administration, Topical; Animals; Antibiotics, Antineoplastic / administration & dosage; Antibiotics, Antineoplastic / therapeutic use; Carcinoma, Squamous Cell / drug therapy; Carcinoma, Squamous Cell / surgery; Carcinoma, Squamous Cell / veterinary; Eye Neoplasms / drug therapy; Eye Neoplasms / surgery; Eye Neoplasms / veterinary; Female; Horse Diseases / drug therapy; Horse Diseases / surgery; Horse Diseases / therapy; Horses; Lasers, Gas / therapeutic use; Male; Mitomycin / administration & dosage; Mitomycin / therapeutic use; Ophthalmologic Surgical Procedures / methods; Ophthalmologic Surgical Procedures / veterinary; Retrospective Studies
TL;DR: Horses receiving adjunctive topical MMC therapy were no more likely to experience tumor recurrence than were horses undergoing CO(2) laser ablation in the horses in this study. (via Semantic Scholar)
UN Sustainable Development Goal Categories
3. Good Health and Well-being (Web of Science; OpenAlex)
Sources: Web Of Science, ORCID
Added: August 6, 2018

2012 journal article

Evaluation of diode endoscopic cyclophotocoagulation in bovine cadaver eyes

AMERICAN JOURNAL OF VETERINARY RESEARCH, 73(9), 1445–1452.

By: J. Harrington n, R. McMullen, J. Cullen* & B. Gilger* 

MeSH headings : Animals; Cadaver; Cattle; Cattle Diseases / pathology; Cattle Diseases / surgery; Endoscopy / methods; Endoscopy / veterinary; Glaucoma / pathology; Glaucoma / surgery; Glaucoma / veterinary; Histocytochemistry; Laser Coagulation / instrumentation; Laser Coagulation / methods; Laser Coagulation / veterinary
TL;DR: Evaluating the anterior chamber approach and energy levels for endoscopic cyclophotocoagulation (ECPC) and assessing ECPC-induced tissue damage in phakic eyes of bovine cadavers found the 0.75- and 0.90-J energy levels had the potential to effectively treat the ciliary epithelium. (via Semantic Scholar)
UN Sustainable Development Goal Categories
6. Clean Water and Sanitation (OpenAlex)
Sources: Web Of Science, ORCID
Added: August 6, 2018

2010 journal article

Effect of three treatment protocols on acute ocular hypertension after phacoemulsification and aspiration of cataracts in dogs

Veterinary Ophthalmology, 13(1), 14–19.

By: M. Crasta, A. Clode n, R. McMullen  n, D. Pate n & B. Gilger n 

author keywords: carbachol; cataract; dogs; IOP; latanoprost; phacoemulsification
MeSH headings : Administration, Topical; Animals; Carbachol / therapeutic use; Cataract Extraction / adverse effects; Cataract Extraction / veterinary; Dog Diseases / drug therapy; Dog Diseases / prevention & control; Dog Diseases / surgery; Dogs; Intraocular Pressure / drug effects; Latanoprost; Ocular Hypertension / etiology; Ocular Hypertension / prevention & control; Ocular Hypertension / veterinary; Phacoemulsification / adverse effects; Phacoemulsification / veterinary; Postoperative Period; Prostaglandins F, Synthetic / therapeutic use; Retrospective Studies
TL;DR: Topical 0.005% latanoprost or intracameral injection after PA in dogs did not reduce POH or increase intraocular inflammation compared to dogs not receiving adjunctive therapy after PA of cataracts. (via Semantic Scholar)
UN Sustainable Development Goal Categories
3. Good Health and Well-being (Web of Science; OpenAlex)
Sources: Web Of Science, Crossref, ORCID
Added: August 6, 2018

2008 journal article

Epibulbar melanoma in a foal

Veterinary Ophthalmology, 11, 44–50.

By: R. McMullen, A. Clode*, A. Pandiri n, D. Malarkey*, T. Michau* & B. Gilger* 

author keywords: congenital; epibulbar; equine; melanoma; neoplasia
MeSH headings : Animals; Animals, Newborn; Choroid Neoplasms / pathology; Choroid Neoplasms / surgery; Choroid Neoplasms / veterinary; Eye Enucleation / methods; Eye Enucleation / veterinary; Eye Neoplasms / pathology; Eye Neoplasms / surgery; Eye Neoplasms / veterinary; Horse Diseases / pathology; Horse Diseases / surgery; Horses; Limbus Corneae; Macrophages / pathology; Male; Melanoma / pathology; Melanoma / surgery; Melanoma / veterinary; Pigment Epithelium of Eye / pathology; Treatment Outcome
TL;DR: Based on the sudden onset and rapid growth as well as the histological evidence of invasion, well-differentiated features, heavy pigmentation, and no apparent mitoses, this neoplasm was considered to be a low-grade malignant melanoma. (via Semantic Scholar)
UN Sustainable Development Goal Categories
2. Zero Hunger (OpenAlex)
Sources: Web Of Science, Crossref, ORCID
Added: August 6, 2018

2003 article

Globally convergent algorithms for nonsmooth nonlinear equations in computational fluid dynamics

Coffey, T., McMullan, R. J., Kelley, C. T., & McRae, D. S. (2003, March 1). JOURNAL OF COMPUTATIONAL AND APPLIED MATHEMATICS, Vol. 152, pp. 69–81.

By: T. Coffey n, R. McMullan n, C. Kelley n  & D. McRae n

author keywords: pseudo-transient continuation; nonlinear equations; steady-state solutions; global convergence; splitting methods; Euler equations; MUSCL approximation
TL;DR: A nonsmooth discretization of the Euler equations for flow in a nozzle is solved with splitting method which is in turn globalized with the method of pseudo-transient continuation. (via Semantic Scholar)
Source: Web Of Science
Added: August 6, 2018

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