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Stability refers to a software system's resistance to the “ripple effect”, i.e., propagation of changes. In this paper, we investigate the stability of classes that participate in instances/occurrences of GoF design patterns. We examine whether the stability of such classes is affected by (a) the pattern type, (b) the role that the class plays(More)
BACKGROUND To describe clinical outcomes in a series of patients with tractional cystoid macular edema, a variant of vitreomacular traction syndrome. METHODS Twelve consecutive patients (15 eyes) with tractional cystoid macular edema of maximum diameter of ≤550 μm and presenting corrected-distance visual acuity of ≤0.3 (Snellen ≥20/40) were studied. Each(More)
OBJECTIVES To report changes in perceived visual functioning after surgery for symptomatic cataract with preoperative corrected distance visual acuity [CDVA] of 0.4 logMAR or better (Snellen equivalent, 20/50) and to investigate the relationship between any observed changes and preoperative physical characteristics and psychophysical consequences of the(More)
PURPOSE To quantify the effect on refractive outcomes after cataract surgery of personalization of Haigis intraocular lens (IOL) constants for a given surgeon-IOL combination. SETTING Institute of Eye Surgery and Institute of Vision Research, Whitfield Clinic, Butlerstown North, Waterford, Ireland. METHODS Personalization of Haigis IOL constants was(More)
PURPOSE To report the impact of posture-related ocular cyclotorsion on one surgeon's surgically induced astigmatism (SIA) results and the variance in SIA. SETTING Institute of Eye Surgery, Whitfield Clinic, Waterford, Ireland. METHODS This prospective randomized controlled study included eyes that had phacoemulsification with intraocular lens(More)
PURPOSE To investigate whether psychophysical, morphological, and/or optical characteristics of symptomatic non-advanced cataract are complementary to, or more appropriate than, visual acuity (VA) for the purposes of recording visual data that reflect subjective visual difficulty in patients with cataract that exhibit relative sparing of high contrast(More)
Context: Investing on Open Source Software (OSS) as a "code reuser", involves certain risks, such as the difficulty in understanding the level of OSS design quality Aim: We investigate the levels of design quality of OSS projects, across different application domains. Method: We conducted a case study, which is the most fitting research method for observing(More)
PURPOSE To study changes in anterior segment morphometry after uneventful phacoemulsification cataract surgery, and to investigate whether there is a relationship between any observed changes and intraocular pressure (IOP) reduction after the procedure. METHODS The anterior chamber depth (ACD), anterior chamber volume (ACV), anterior chamber angle (ACA),(More)