Allows perceptions of general shapes and shades of gray in dim light
Rods
Cones
Device used to treat retinal detachment; uses localized cold temperature to seal tears and holes
Cryotherapy Unit
A locking or nonlocking needle holder used in ophthalmics
Castroviejo needle holder
Procedure to correct misalignment or deviation from coordinated movement of the eye
Strabismus Correction
White outer layer of the eyeball
Sclera
Thin, transparent lining of the inner surface of the eyelid that covers the sclera
Conjunctiva
Equipment used for better visualization during procedures; may be draped or reusable sterile handles placed on knobs
Operating Microscope
Ophthalmic forceps used for grasping and holding delicate eye tissue
Bishop-Harmon iris forceps
Excision of the an eye and surrounding muscles due to extensive damage resulting in total loss of vision
Enucleation
Clear fluid filling the space in front of the eyeball between the lens and the cornea
Aqueous Humor
Bundle of more than 1 million nerve fibers that carry visual messages
Optic nerve
Equipment used in posterior chamber surgeries; controls intraocular pressure through irrigation and aspiration
Vitreoretinal System
Type of suture use to manipulate the eye during surgery
Bridle Suture
Procedure for the removal of a section of iris tissue
Iridectomy
Clear gel that fills the space between the lens and the retina of the eyeball
Vitreous Body
List the 3 tunics that compose the eye
Fibrous tunic, vascular pigmented tunic, and nervous tunic
Uses ultrasonic energy to fragment tissue; used in treatment of cataracts
Phacoemulsifier
Type of retractor used to retract the eye lid
Desmarres lid retractor
Procedure performed to reopen a pathway between the lacrimal sac and the nose; pathway can become obstructed by fibrous tissue or bone
Dacrocystorhinostomy
Thick connective tissue that provides integrity to the shape of the eyelid
Tarsal plate
Angular junction of the eyelids at either corner
Canthus
Used to increase visualization during procedures; attached to a pair of glasses
Loupes
Instrument used for grasping the eyelid and isolating the problem area to facilitate excision
Desmarres chalazion forcep
Procedure to correct an abnormal inversion of the lower lid margin; causes the eyelashes to rub against the cornea causing irritation, pain, and chronic tears
Entropian Repair