What is glaucoma?
24.2 هزار بار بازدید -
5 سال پیش
-
This video explains glaucoma and
This video explains glaucoma and intraocular pressure (IOP).
Dr Nick Andrew is an Australian ophthalmologist with subspecialist expertise in advanced cataract, laser eye surgery, and micro invasive glaucoma surgery (MIGS).
Dr Andrew's publication cited in this video is available at: https://www.ncbi.nlm.nih.gov/m/pubmed... ("A review of aqueous outflow resistance and its relevance to microinvasive glaucoma surgery")
Learn more at www.drnickandrew.com.au and "Ophthalmology Against The Rule" podcast.
Video transcript:
The content of this video comes from this paper that I published in late 2019. It is the most comprehensive review article to date, detailing the fluid drainage pathways of the eye and how they can be enhanced using micro-invasive glaucoma surgery. It was published in Survey of Ophthalmology, the blue ribbon review journal for ophthlamology. Inside your eye there's a darkly-coloured, highly vascular structure just behind the iris, called the ciliary body. This produces a clear, watery fluid called aqueous humour. In healthy eyes, aqueous humour flows in an obstructed manner through the pupil, into the front of the eye and towards a drainage channel that runs circumferentially near the base of the iris. After passing through the pupil, aqueous humour flows through a multi-layered sheet of cells called the trabecular meshwork. This covers the drainage channel of the eye, Schlemm's canal. From Schlemm's canal, fluid drains into Collector channels that connect with the tiny blood vessels of the conjunctiva and episclera. In glaucoma, the trabecular meshwork becomes thickened and less permeable. In addition, Schlemm's canal may collapse. Aqueous humour can no longer flow through these structures easily, resulting in increased resistance to fluid drainage. Consequently, intraocular pressure begins to rise. Glaucoma is when pressure inside the eye causes damage to the optic nerve. This damage is progressive and irreversible. Glaucoma causes gradual loss of vision, usually affecting the peripheral vision first. Individuals with glaucoma cannot feel that their eye pressures are high, and they are usually not aware that they are losing their vision until the damage is very advanced. This is why it is very important to get checked. Fortunately, there are numerous options for treating glaucoma, which I will discuss in my other videos.
Dr Nick Andrew is an Australian ophthalmologist with subspecialist expertise in advanced cataract, laser eye surgery, and micro invasive glaucoma surgery (MIGS).
Dr Andrew's publication cited in this video is available at: https://www.ncbi.nlm.nih.gov/m/pubmed... ("A review of aqueous outflow resistance and its relevance to microinvasive glaucoma surgery")
Learn more at www.drnickandrew.com.au and "Ophthalmology Against The Rule" podcast.
Video transcript:
The content of this video comes from this paper that I published in late 2019. It is the most comprehensive review article to date, detailing the fluid drainage pathways of the eye and how they can be enhanced using micro-invasive glaucoma surgery. It was published in Survey of Ophthalmology, the blue ribbon review journal for ophthlamology. Inside your eye there's a darkly-coloured, highly vascular structure just behind the iris, called the ciliary body. This produces a clear, watery fluid called aqueous humour. In healthy eyes, aqueous humour flows in an obstructed manner through the pupil, into the front of the eye and towards a drainage channel that runs circumferentially near the base of the iris. After passing through the pupil, aqueous humour flows through a multi-layered sheet of cells called the trabecular meshwork. This covers the drainage channel of the eye, Schlemm's canal. From Schlemm's canal, fluid drains into Collector channels that connect with the tiny blood vessels of the conjunctiva and episclera. In glaucoma, the trabecular meshwork becomes thickened and less permeable. In addition, Schlemm's canal may collapse. Aqueous humour can no longer flow through these structures easily, resulting in increased resistance to fluid drainage. Consequently, intraocular pressure begins to rise. Glaucoma is when pressure inside the eye causes damage to the optic nerve. This damage is progressive and irreversible. Glaucoma causes gradual loss of vision, usually affecting the peripheral vision first. Individuals with glaucoma cannot feel that their eye pressures are high, and they are usually not aware that they are losing their vision until the damage is very advanced. This is why it is very important to get checked. Fortunately, there are numerous options for treating glaucoma, which I will discuss in my other videos.
5 سال پیش
در تاریخ 1398/07/11 منتشر شده
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