We strive to offer our patients the most advanced diagnostic testing.
Intraocular Pressure
The term Intraocular Pressure (IOP) relates to the flow of aqueous humour within the eye. The aqueous humour is the fluid which fills the anterior chamber of the eye, or the space between the cornea and the lens. Aqueous humour helps to maintain a constant pressure to inflate the eye and also provides the avascular tissue of the cornea and lens with necessary nutrients. There is a constant cycle of production and drainage. Pressure increases when the aqueous humour is being produced at a higher rate than it is being drained. This can be due to increased production, reduced drainage, or both.
Intraocular pressure (IOP) is one of the most common risk factors for patients with Glaucoma, however it is not the only indication, and glaucoma cannot be diagnosed based solely on high intraocular pressure. About significant percent of glaucoma patients have pressure within, or below the normal range. Intraocular pressure, measured in millimetres of mercury can be measured with multiple instruments, the most accurate being Goldmann Applanation Tonometry. Normal pressure is generally considered to between 6 and 22mmHg although glaucoma may still be present in people with pressure in this ‘normal’ range. There are several factors to consider when measuring eye pressure such as corneal thickness, age, family history, and ethnicity.
In some cases a person can tolerate high pressures (>22 mmHg) without any damage being done to the eye. This is known as ocular hypertension and these individuals are usually considered to be glaucoma suspects and followed with routine assessments..
Intraocular pressure (IOP) is one of the most common risk factors for patients with Glaucoma, however it is not the only indication, and glaucoma cannot be diagnosed based solely on high intraocular pressure. About significant percent of glaucoma patients have pressure within, or below the normal range. Intraocular pressure, measured in millimetres of mercury can be measured with multiple instruments, the most accurate being Goldmann Applanation Tonometry. Normal pressure is generally considered to between 6 and 22mmHg although glaucoma may still be present in people with pressure in this ‘normal’ range. There are several factors to consider when measuring eye pressure such as corneal thickness, age, family history, and ethnicity.
In some cases a person can tolerate high pressures (>22 mmHg) without any damage being done to the eye. This is known as ocular hypertension and these individuals are usually considered to be glaucoma suspects and followed with routine assessments..
Optical Coherence Tomography
Glaucoma damages the optic nerve, which leads can lead to progressive vision loss. Optic nerve assessments are commonly done with Optical Coherence Tomography (OCT) imaging. This can detect early disease and allow treatment to be administered as a way to prevent further damage or vision loss. It also objectively assesses for glaucoma disease progression.
Anterior OCT imaging can allows objective evaluation of the anterior chamber angle and provides advanced assessment of narrow angles and angle closure glaucoma.
Cloudbreak Eye Care was the first in Canada to utilize the Topcon Triton Swept Source OCT to image both the optic nerve and the anterior chamber angle.
Anterior OCT imaging can allows objective evaluation of the anterior chamber angle and provides advanced assessment of narrow angles and angle closure glaucoma.
Cloudbreak Eye Care was the first in Canada to utilize the Topcon Triton Swept Source OCT to image both the optic nerve and the anterior chamber angle.
Visual Field Testing
Visual Field testing monitors and assesses for progressive peripheral vision loss field cause by Glaucoma. Over time, if the glaucoma is left untreated, the visual field loss may extend to the central vision, leading to blindness. Patients cannot detect field loss until more advanced stages of the disease, making it important to have regular visual field testing to detect asymptomatic damage or changes in the visual field. Early detection leads to earlier treatment to reduce vision damage caused by the disease. Cloudbreak Eye Care uses the most advanced equipment, suited to detect and monitor the full spectrum of field loss.