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A coloboma (from the Greek κολόβωμα, meaning "defect") [1] is a hole in one of the structures of the eye, such as the iris, retina, choroid, or optic disc.The hole is present from birth and can be caused when a gap called the choroid fissure, which is present during early stages of prenatal development, fails to close up completely before a child is born.
Tadpole pupil is diagnosed and characterized by the abnormality of the pupil shape. The pupil can disorient itself in different ways before it returns to its original shape. [6] For example, the pupil may stretch out to a 7 o'clock position, [6] i.e. the pupil points in the same direction the hour hand on a clock would at 7 o'clock.
Eccentric fixation FB: Foreign body FD: Fixation disparity FF: Foveal fixation FHG: Family history of glaucoma: FMH: Family medical history FOH: Family ocular history F/U: Follow up appointment GH: General health G(M)P: General (medical) practitioner HA: Headaches HARC: Harmonious abnormal retinal correspondence HM: Hand motion vision – state ...
The World Health Organization (WHO) publishes a classification of known diseases and injuries, the International Statistical Classification of Diseases and Related Health Problems, or ICD-10. This list uses that classification.
Marcus Gunn pupil: The left optic nerve and the optic tracts. A Marcus Gunn pupil indicates an afferent defect, usually at the level of the retina or optic nerve. Moving a bright light from the unaffected eye to the affected eye would cause both eyes to dilate, because the ability to perceive the bright light is diminished. Specialty
Iridodialyses are usually caused by blunt trauma to the eye, [2] but may also be caused by penetrating eye injuries. [7] An iridodialysis may be an iatrogenic complication of any intraocular surgery [10] [11] [12] and at one time they were created intentionally as part of intracapsular cataract extraction. [13]
Corectopia is the displacement of the eye's pupil from its normal, central position. [1] It may be associated with high myopia or ectopia lentis , among other conditions. [ 2 ] Medical or surgical intervention may be indicated for the treatment of corectopia in some cases.
Eye injury by impact of small plastic body. Based on the injury to the eyewall (outer fibrous coat of the eye consisting of cornea and sclera) Closed globe injury: the eye globe is intact, but the seven rings of the eye have been classically described as affected by blunt trauma.