Eye surgery, also known asophthalmic surgery orocular surgery, issurgery performed on theeye or itsadnexa.[1] Eye surgery is part ofophthalmology and is performed by an ophthalmologist or eye surgeon. The eye is a fragile organ, and requires due care before, during, and after a surgical procedure to minimize or prevent further damage. An eye surgeon is responsible for selecting the appropriate surgical procedure for the patient, and for taking the necessary safety precautions. Mentions of eye surgery can be found in several ancient texts dating back as early as 1800 BC, with cataract treatment starting in the fifth century BC.[2] It continues to be a widely practiced class of surgery, with various techniques having been developed for treating eye problems.
Since the eye is heavily supplied by nerves,anesthesia is essential.Local anesthesia is most commonly used.Topical anesthesia usinglidocaine topical gel is often used for quick procedures. Since topical anesthesia requires cooperation from the patient,general anesthesia is often used for children, traumatic eye injuries, or major orbitotomies, and for apprehensive patients. Thephysician administering anesthesia, or anurse anesthetist oranesthetist assistant with expertise in anesthesia of the eye, monitors the patient's cardiovascular status. Sterile precautions are taken to prepare the area for surgery and lower the risk of infection. These precautions include the use ofantiseptics, such aspovidone-iodine, and sterile drapes, gowns, and gloves.
Although the terms laser eye surgery andrefractive surgery are commonly used as if they were interchangeable, this is not the case. Lasers may be used to treat nonrefractive conditions (e.g. to seal a retinal tear).[3] Laser eye surgery or laser corneal surgery is a medical procedure that uses a laser to reshape the surface of the eye to correctmyopia (short-sightedness),hypermetropia (long-sightedness), andastigmatism (uneven curvature of the eye's surface). Importantly, refractive surgery is not compatible with everyone, and people may find on occasion that eyewear is still needed after surgery.[4]
Recent developments also include procedures that can change eye color from brown to blue.[5][6] Before proceeding with laser surgery, the eye specialist needs to certify that the patient is a suitable candidate for the surgery and there are several factors to be considered before doing laser surgery.[7]
This sectionneeds expansion with: laser eye surgery for other purposes. You can help byadding to it.(December 2023)
Cataract surgery, using a temporal approachphacoemulsification probe (in right hand) and "chopper" (in left hand) being done under operating microscope at a Navy medical center
Acataract is an opacification or cloudiness of the eye'scrystalline lens due to aging, disease, or trauma that typically prevents light from forming a clear image on theretina. Ifvisual loss is significant, surgical removal of the lens may be warranted, with lostoptical power usually replaced with a plasticintraocular lens. Owing to the high prevalence of cataracts, cataract extraction is the most common eye surgery. Rest after surgery is recommended.[8]
Glaucoma is a group of diseases affecting theoptic nerve that results invision loss and is frequently characterized by raisedintraocular pressure. Many types of glaucoma surgery exist, and variations or combinations of those types can facilitate the escape of excessaqueous humor from the eye to lower intraocular pressure, and a few that lower it by decreasing the production of aqueous humor.
Canaloplasty is an advanced, nonpenetrating procedure designed to enhance drainage through the eye's natural drainage system to provide sustained reduction of intraocular pressure. Canaloplasty uses microcatheter technology in a simple and minimally invasive procedure.To perform a canaloplasty, an ophthalmologist creates a tiny incision to gain access to a canal in the eye. A microcatheter circumnavigates the canal around the iris, enlarging the main drainage channel and its smaller collector channels through the injection of a sterile, gel-like material called viscoelastic.[clarification needed] The catheter is then removed and a suture is placed within the canal and tightened.[clarification needed] By opening up the canal, the pressure inside the eye can be reduced.[clarification needed][9][10][11][12]
Refractive surgery aims to correct errors of refraction in the eye, reducing or eliminating the need for corrective lenses.
Keratomileusis is a method of reshaping the corneal surface to change itsoptical power. A disc of the cornea is shaved off, quickly frozen, lathe-ground, then returned to its original power.
Osteo-odonto-keratoprosthesis is surgery in which support for an artificial cornea is created from a tooth and its surrounding jawbone.[17] This is a still-experimental procedure used for patients with severely damaged eyes, generally from burns.[18]
Eye color-change surgery through an iris implant, known as Brightocular, or the stripping away the top layer of eye pigment, known as the stroma procedure[19]
Anterior vitrectomy is the removal of the front portion of vitreous tissue. It is used for preventing or treating vitreous loss during cataract or corneal surgery, or to remove misplaced vitreous in conditions such as aphakia pupillary block glaucoma.
Pars plana vitrectomy or trans pars plana vitrectomy is a procedure to remove vitreous opacities and membranes through a pars plana incision. It is frequently combined with other intraocular procedures for the treatment of giant retinal tears, tractional retinal detachments, and posterior vitreous detachments.
Pan retinal photocoagulation is a type of photocoagulation therapy used in the treatment ofdiabetic retinopathy.[21]
Ignipuncture is an obsolete procedure that involvescauterization of the retina with a very hot, pointed instrument.[22]
Ascleral buckle is used in the repair of a retinal detachment to indent or "buckle" the sclera inward, usually by sewing a piece of preserved sclera or silicone rubber to its surface.[23]
Retinal cryopexy, or retinal cryotherapy, is a procedure that uses intense cold to induce a chorioretinal scar and to destroy retinal or choroidal tissue.[24]
Recession involves moving the insertion of a muscle posteriorly towards its origin.
Myectomy
Myotomy
Tenectomy
Tenotomy
Tightening or strengthening procedures
Resection
Tucking
Advancement is the movement of an eye muscle from its original place of attachment on the eyeball to a more forward position.
Transposition or repositioning procedures
Adjustable suture surgery is a method of reattaching an extraocular muscle by means of a stitch that can be shortened or lengthened within the first postoperative day, to obtain better ocular alignment.[29]
Oculoplastic surgery, or oculoplastics, is the subspecialty ofophthalmology that deals with the reconstruction of the eye and associated structures. Oculoplastic surgeons perform procedures such as the repair of droopy eyelids (blepharoplasty),[30] repair of tear duct obstructions, orbital fracture repairs, removal of tumors in and around the eyes, and facial rejuvenation procedures including laser skin resurfacing, eye lifts, brow lifts, and even facelifts. Common procedures are:
Orbital decompression is used for Grave's disease, a condition (often associated with overactive thyroid problems) in which the eye muscles swell. Because the eye socket is bone, the swelling cannot be accommodated and as a result, the eye is pushed forward into a protruded position. In some patients, this is very pronounced. Orbitial decompression involves removing some bone from the eye socket to open up one or moresinuses and so make space for the swollen tissue and allowing the eye to move back into normal position.
Anenucleation is the removal of the eye leaving the eye muscles and remaining orbital contents intact.[37]
Anevisceration is the removal of the eye's contents, leaving the scleral shell intact. Usually performed to reduce pain in a blind eye.[38]
Anexenteration is the removal of the entire orbital contents, including the eye, extraocular muscles, fat, and connective tissues; usually for malignant orbital tumors.[39]
Many of these described procedures are historical and are not recommended due to a risk of complications. Particularly, these include operations done on ciliary body in an attempt to control glaucoma, since highly safer surgeries for glaucoma, including lasers, nonpenetrating surgery, guarded filtration surgery, and seton valve implants have been invented.
Aciliarotomy is a surgical division of the ciliary zone in the treatment of glaucoma.[33]
Aciliectomy is the surgical removal of part of the ciliary body or the surgical removal of part of a margin of an eyelid containing the roots of the eyelashes.[33]
Aciliotomy is a surgical section of the ciliary nerves.[33]
Aconjunctivoanstrostomy is an opening made from the inferior conjunctival cul-de-sac into the maxillary sinus for the treatment of epiphora.[33]
Aconjunctivorhinostomy is a surgical correction of the total obstruction of a lacrimal canaliculus by which the conjunctiva is anastomosed with the nasal cavity to improve tear flow.[33]
Acorectomedialysis, orcoretomedialysis, is an excision of a small portion of the iris at its junction with the ciliary body to form an artificial pupil.[33]
Acorectomy, orcoretomy, is any surgical cutting operation on the iris at the pupil.[33]
Acycloanemization is a surgical obliteration of the long ciliary arteries in the treatment of glaucoma.[33]
Aniridectomesodialysis is the formation of an artificial pupil by detaching and excising a portion of the iris at its periphery.[33]
Aniridodialysis, sometimes known as acoredialysis, is a localized separation or tearing away of the iris from its attachment to the ciliary body.[33][38]
Aniridesis is a surgical procedure in which a portion of the iris is brought through and incarcerated in a corneal incision in order to reposition the pupil.[33][41]
Aniridocorneosclerectomy is the surgical removal of a portion of the iris, the cornea, and the sclera.[33]
Aniridocyclectomy is the surgical removal of the iris and the ciliary body.[33]
Aniridocystectomy is the surgical removal of a portion of the iris to form an artificial pupil.[33]
Aniridosclerectomy is the surgical removal of a portion of the sclera and a portion of the iris in the region of the limbus for the treatment of glaucoma.[33]
Aniridosclerotomy is the surgical puncture of the sclera and the margin of the iris for the treatment of glaucoma.[33]
Arhinommectomy is the surgical removal of a portion of the internal canthus.[33]
Atrepanotrabeculectomy is used in the treatment of chronic open- and chronic closed-angle glaucoma.[40]
^Pfeifer, Wanda L.; Scott, William E. (July–September 2002)."Strabismus Surgery"(PDF).INSIGHT the Journal of the American Society of Ophthalmic Registered Nurses, Inc.XXVII (3): 73. Archived fromthe original(PDF) on 2003-07-28.
^Cherkunov BF, Lapshina AV (1976). "Canaliculodacryocystostomy in obstruction of medial end of the lacrimal duct".Oftalmol Zh.31 (7):544–8.PMID1012635.
^abCvetkovic D, Blagojevic M, Dodic V (Feb 1979). "Comparative results of trepanotrabeculectomy and iridencleisis in primary glaucoma".J Fr Ophtalmol.2 (2):103–7.PMID444110.{{cite journal}}: CS1 maint: multiple names: authors list (link)
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