SURGICAL TECHNIQUES FOR CATARACT EXTRACTION
I. Intracapsular Cataract Extraction Presently, the technique of intracapsular cataract extraction (ICCE) is obsolete.However, the surgical steps are described here as a mark of respect to thetechnique which has been widely employed for about 100 years over the world and is an important landmark in the history of cataract surgery. I Surgical steps of the ICCE technique I Superior rectus (br;d/e) suture: It is passed to fix the eye in downward gaze. Coniunctival flap (fornix based): It is prepared to expose the limbus and haemostasis is achieved by wet field or heat cautery. All surgeons do not make conjunctiva! flap. Partial thickness groove or gutter: It is made through about two-thirds depth of anterior limbal area from 9.30 to 2.30 O’clock (150°) with the help of a razor blade knife. Corneoscleral section: The anterior chamber is opened with the razor blade knife· or with 3.2 mm keratomeand section is completed using sclerocorneal scissors. lridectomv: -A peripheraliridectomy may be performed by using iris forceps and de Wecker’s scissors to prevent postoperative pupil block glaucoma. Lens delivery: In ICCE, the lens can be delivered by any of the following methods: Smith method: Here the lens is delivered with tumbling technique by applying pressure on limbus at6 O’clock position with lens expressor and counterpressure at 12 O’clock with the lensspatula. The lens would “Tumble”, i.e. lower pole is delivered first. Cryoextracfion: In this technique, tip of the […]
Cataract surgery
Cataract surgery From Wikipedia, Cataract surgery, also called lens replacement surgery, is the removal of the natural lens of the eye (also called “crystalline lens”) that has developed an opacification, which is referred to as a cataract,[1] and its replacement with an intraocular lens. Metabolic changes of the crystalline lens fibers over time lead to the development of the cataract, causing impairment or […]
