Eye surgery or ocular surgery is a surgical procedure that is done on the eye or related parts of the eye. For the most part, eye surgeries are done by ophthalmologists for treating eye problems that cannot be relieved with medication. Refractive eye surgeries are very common and correct eye conditions like nearsightedness, farsightedness, astigmatism.
Cataract is an eye condition that is often described as cloudiness of the lens and mostly due to old age, disease or any kind of trauma. . Cataract surgery takes around 30 to 45 minutes and is usually done under local anaesthesia and involves a procedure called phacoemulsification. In this procedure, a small incision is made to insert a probe, which dissolves the cloudy lens using ultrasonic vibrations. Extracapsular cataract extraction is another procedure that involves removal of the entire natural lens through a large incision — the lens capsule is retained for placing the intraocular lens. Intracapsular cataract extraction is a highly complicated procedure that involves removal of the lens capsule, along with the natural lens.
Glaucoma is a medical condition where a raised intraocular pressure, due to excess of aqueous humour, affects the functioning of the optic nerve, leading to a loss of vision. Oral and topical medicines may prove effective for controlling the condition during the initial stages but surgery becomes unavoidable, if the condition worsens. Laser trabeculoplasty is a procedure that creates tiny holes using a focused beam of light, to drain the aqueous humour. A new procedure called Selective Laser Trabeculoplasty is recommended for those in the initial stages of glaucoma but for those in the advanced stages would receive a trabeculectomy. Trabeculectomy involves removal of tissues from the eyes’ drainage system without removing eye tissues themselves. Iridotomy is a procedure that is recommended for those with angle-closure glaucoma — it involves making small openings through the iris and removes of a part of the iris tissue.