inflammation is the body’s built-in response to injury, infection, or irritation. It involves immune cells and chemical signals that help protect tissue and start repair. In eye care, inflammation is a common explanation for redness, pain, light sensitivity, or blurred vision. Clinicians use the term to describe both what they see on exam and what may be happening at a tissue level.
infection is the invasion and growth of microbes in body tissues. In eye care, it commonly refers to germs affecting the eyelids, tear film, cornea, or inside of the eye. It can cause redness, discharge, pain, light sensitivity, or blurred vision. Clinicians use the term to guide testing, treatment choices, and follow-up planning.
graft failure means a transplanted eye tissue graft no longer works as intended. It most often refers to a corneal transplant that becomes persistently cloudy or swollen. Clinicians use the term to describe a loss of graft clarity, function, or structural integrity over time. It is commonly discussed after keratoplasty (corneal transplantation) and other ocular surface grafting procedures.
graft rejection is an immune response in which the body recognizes a transplanted tissue (a graft) as foreign and attacks it. In eye care, it most often refers to rejection after corneal transplantation (keratoplasty). It can also apply to other ocular surface or eye-adjacent grafts, such as patch grafts used to repair thinning tissues. Clinicians use the term to describe a specific cause of graft dysfunction that may be reversible if identified early.
corneal decompensation is a loss of the cornea’s ability to stay clear. It usually happens when the corneal endothelium (the inner “pump” layer) is not working well. It is commonly discussed in eye clinics when corneal swelling (edema) causes blurry vision, glare, or discomfort.
IOL dislocation means an artificial lens inside the eye has shifted from its intended position. The IOL (intraocular lens) is most often implanted during cataract surgery. When the lens moves, vision can become blurry, distorted, or unstable. This term is commonly used in postoperative eye care and in planning corrective treatment.
choroidal detachment is a separation of the choroid from the outer wall of the eye (the sclera). It happens when fluid or blood collects in a potential space called the suprachoroidal space. Clinicians most often discuss it after eye surgery, with low eye pressure, or with inflammation or trauma. It is a diagnosis and clinical finding, not a product or routine “treatment” by itself.
retinal detachment (post-cataract) is a retinal detachment that occurs after cataract surgery. It means the retina (the light-sensing tissue lining the back of the eye) separates from the layer that nourishes it. This is considered an urgent eye condition because retinal function depends on close contact with underlying tissues. It is most commonly discussed in postoperative eye care, emergency eye evaluations, and retina clinics.
elevated IOP (post-op) means higher-than-expected intraocular pressure after eye surgery. Intraocular pressure (IOP) is the fluid pressure inside the eye. This term is commonly used in post-operative visits after cataract, glaucoma, corneal, retinal, and refractive procedures. It describes a finding that may be temporary or persistent, depending on the cause.
A wound leak is the escape of fluid from an eye wound or surgical incision that is not fully sealed. In ophthalmology, it most often refers to leaking aqueous humor (the clear fluid inside the front of the eye). It is commonly discussed after eye surgery or after eye trauma. Clinicians use the term to describe a finding that can affect eye pressure, healing, and infection risk.
corneal edema (post-op) means swelling of the cornea that occurs after eye surgery. It happens when extra fluid builds up in the normally clear corneal tissue. It is commonly discussed after cataract surgery, glaucoma procedures, and corneal surgery. It matters because corneal swelling can temporarily or persistently blur vision.
toxic anterior segment syndrome (TASS) is a sudden, sterile (non-infectious) inflammation inside the front part of the eye. It most often appears after eye surgery, especially cataract surgery. It is considered a postoperative complication rather than a disease someone “catches.” Clinicians use the term to describe a characteristic pattern of inflammation linked to a toxic or irritating exposure during surgery.
intracameral anesthesia is a type of local anesthesia delivered inside the front chamber of the eye. It is most commonly used during cataract surgery and other anterior segment procedures. The goal is to reduce pain and reflex eye movement during surgery while keeping the patient awake. It is often combined with numbing eye drops and other comfort measures.
topical anesthesia is numbing medicine placed directly on the eye’s surface. It is most often given as eye drops or, less commonly, a gel. It reduces pain signals from the cornea and conjunctiva for exams and minor procedures. It is widely used in optometry and ophthalmology clinics and in outpatient eye surgery settings.
A sub-Tenon block is a type of local anesthesia used around the eye. It places anesthetic medicine into the sub-Tenon space, a thin layer between the white of the eye (sclera) and a tissue covering called Tenon’s capsule. It is commonly used to numb the eye and reduce eye movement during ophthalmic procedures. Many cataract and retinal surgeries may use this technique, depending on the patient and the operation.
A peribulbar block is a type of local anesthesia used to numb the eye and reduce eye movement for certain eye procedures. It involves injecting anesthetic medication into the space around the eyeball, not into the eyeball itself. It is commonly used for cataract surgery and other operations where a still, comfortable eye is helpful. It is a form of “regional anesthesia,” meaning it targets nerves in one area rather than putting the whole body to sleep.
A retrobulbar block is an injection of local anesthetic placed behind the eyeball. It is used to numb the eye and reduce eye movement for certain eye surgeries. It is most commonly discussed in the context of cataract and other intraocular procedures. It is one option among several anesthesia approaches in ophthalmology.
A lid speculum is a small medical device used to gently hold the eyelids open. It helps clinicians see and access the front of the eye without the patient blinking. It is commonly used in ophthalmology and optometry clinics, and during eye surgery. It can be reusable or single-use, depending on the setting and manufacturer.
A speculum is a medical tool designed to gently hold tissues apart to improve visibility and access. In eye care, it usually refers to an eyelid speculum that keeps the eyelids open during an exam or procedure. It is commonly used in ophthalmology clinics, operating rooms, and procedure rooms.
povidone-iodine prep is an antiseptic “cleaning” step used to reduce germs on the skin and eye surface. It is commonly applied around the eyelids and placed on the surface of the eye before certain eye procedures. The goal is to lower the chance that microbes enter the eye during treatment. It is used in clinics, procedure rooms, and operating rooms in ophthalmology and optometry.