palpebral fissure

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Related to palpebral fissure: clinodactyly, Epicanthal folds


1. a narrow slit or cleft, especially one of the deeper or more constant furrows separating the gyri of the brain.
2. a deep cleft in the surface of a tooth, usually due to imperfect fusion of the enamel of the adjoining dental lobes. It can be treated with a dental sealant to decrease risk of caries.
abdominal fissure a congenital cleft in the abdominal wall; see also gastroschisis and thoracoceloschisis. Called also celoschisis.
anal fissure (fissure in ano) a painful lineal ulcer at the margin of the anus.
anterior median fissure a longitudinal furrow along the midline of the ventral surface of the spinal cord and medulla oblongata.
fissure of Bichat transverse fissure (def. 2).
branchial fissure pharyngeal groove.
central fissure fissure of Rolando.
collateral fissure a longitudinal fissure on the inferior surface of the cerebral hemisphere between the fusiform gyrus and the hippocampal gyrus.
Henle's f's spaces filled with connective tissue between the muscular fibers of the heart.
hippocampal fissure one extending from the splenium of the corpus callosum almost to the tip of the temporal lobe; called also hippocampal sulcus.
longitudinal fissure the deep fissure between the two cerebral hemispheres.
palpebral fissure the longitudinal opening between the eyelids.
portal fissure porta hepatis.
posterior median fissure
1. a shallow vertical groove in the closed part of the medulla oblongata, continuous with the posterior median fissure of the spinal cord.
2. a shallow vertical groove dividing the spinal cord throughout its length in the midline posteriorly; called also posterior median sulcus.
presylvian fissure the anterior branch of the fissure of Sylvius.
pudendal fissure rima pudendi.
Rolando's fissure (fissure of Rolando) a groove running obliquely across the superolateral surface of a cerebral hemisphere, separating the frontal lobe from the parietal lobe. Called also central fissure and central sulcus.
fissure of round ligament one on the visceral surface of the liver, lodging the round ligament in the adult.
sylvian fissure (fissure of Sylvius) one extending laterally between the temporal and frontal lobes, and turning posteriorly between the temporal and parietal lobes.
transverse fissure
2. the transverse cerebral fissure between the diencephalon and the cerebral hemispheres; called also fissure of Bichat.
zygal fissure any of the fissures on the cerebral cortex that consist of two branches connected by a stem.
Miller-Keane Encyclopedia and Dictionary of Medicine, Nursing, and Allied Health, Seventh Edition. © 2003 by Saunders, an imprint of Elsevier, Inc. All rights reserved.

pal·pe·bral fis·sure

the fissure between the eyelids leading into the conjunctival sac.
Synonym(s): rima palpebrarum [TA]
Farlex Partner Medical Dictionary © Farlex 2012

palpebral fissure

 The horizontal slit-like opening for the eyes between the eyelids
McGraw-Hill Concise Dictionary of Modern Medicine. © 2002 by The McGraw-Hill Companies, Inc.

ri·ma pal·pe·bra·rum

(rī'mă pal'pē-brā'rŭm) [TA]
The lid slit, or fissure between the lids of the eye.
Synonym(s): palpebral fissure.
Medical Dictionary for the Health Professions and Nursing © Farlex 2012

Palpebral fissure

Eyelid opening.
Mentioned in: Tarsorrhaphy
Gale Encyclopedia of Medicine. Copyright 2008 The Gale Group, Inc. All rights reserved.
References in periodicals archive ?
Palpebral fissure height: The mean value of palpebral fissure height for South Indian ethnic male and female subjects was almost similar with no significant sexual difference (Table 2) similar to Thais, (14) Japanese, (12) and Turkish population.
The palpebral fissure lengths of 2.16 [+ o -] 0.25cm and 2.14 [+ o -] 0.28cm for right and left eyes respectively were smaller than those of Red Sokoto goats in which the fissures had equal length (2.50 [+ o -] 0.17cm).
blade and lifting the fused palpebral fissure with the help of Allies tissue forceps.
Ocular examination revealed a moderately narrowed palpebral fissure on the left side (Fig 1).
Congenital deficiency of abduction, associated with impairment of abduction, retraction movements, contraction of the palpebral fissure and oblique movements of the eye.
The patient had a dysmorphic face, short palpebral fissures, retrognatia, micrognatia and angular nose (Figure 1).
All preoperative data regarding palpebral fissure heights, marginal reflex distance (MRD1) , absence or presence of lid crease, levator function, Bells phenomenon, were entered in the case records prior to any surgical intervention.
Physical and diagnostic examinations revealed various facial dysmorphic features including downward-slanting palpebral fissures, malar hypoplasia, hypoplasia of mandible, micrognathia, fishlike mouth with a high arched palate, absent lower eyelid eyelashes, and preauricular hair displacement (Fig.
The OCD is the distance between the lateral canthi of the palpebral fissures bilaterally.4
This syndrome is characterized by deficiency of pre and postnatal growth, hypertrichosis cubiti or generalized hypertrichosis, psychomotor delay, intellectual disability with behavioral alterations and distinctive facial features with narrow nose, sinofris, ocular hypertelorism, long philtrum, short palpebral fissures, low set ears and an ogival palate.
This genomic syndrome is characterized by the presence of facial dysmorphia (microcephaly, prominent forehead, abnormal auricles with ear pits or skin tags, down-slanting palpebral fissures, long philtrum, micrognathia and cleft palate) and severe intellectual disability with elayed development.