ABSTRACTFear of snakes known as Ophidiophobia or Ophiophobia is a powerful and abnormal fear of snakes. A lot of psychologists, physicians and evolutionists have been fascinated by this primeval innate human emotion. Be that as it may, snakes still not are paid enough attention to adequately as agents of human sickness; also, the logical bits of knowledge given by the clinical phenotype of human envenoming have been disregarded for quite a while. Over an era of research has given that snake venom can be rich integration of pharmacologically active proteins, various protein derivatives and peptides. In this way, due to snake bite every person envenomed turns into a whiz try, giving out insight into the pathophysiological and humanitarian test. The logical investigation of snake bite can be a part of activities of venom chemicals, while exhibiting a therapeutic clinical toxicology, that sub forte of toxicology that manages the impacts of characteristic poisons and toxins of microbial, plant and animal inception on people and domesticated animals, especially their counteractive action, conclusion, treatment, the study of disease transmission, and pathophysiology.

AbstractIn individuals showing Marcus Gunn phenomena, it is characterized when the upper eyelid shows involuntary movement (continuous rising motion – more like a wink) every time the jaw is moved, like while eating. It is a congenital disease as it is generally seen to be present since birth, and in certain cases various other anomalies and abnormalities in the eye may also occur, for example: Strabismus and other vision impairments. Despite the fact that it for the most part influences one eye, it can influence the two eyes in uncommon cases.Study of Marcus Gunn PhenomenaMarcus Gunn phenomena also known as Jaw winking condition can be observed in congenital blepharoptosis. This phenomena was first depicted by a Scottish ophthalmologist, named Dr.Robert Marcus Gunn in the year 1883. This disorder for the first time was observed in a 15-year-old young lady as one-sided ptosis related with the upper eyelid constriction on a similar side.Marcus Gunn jaw-winking syndrome (MGJWS) over the years have also acquired various names such as, Pterygoid-levator synkinesis, Marcus Gunn jaw winking trigemino-oculomotor synkinesis, Marcus Gunn ptosis, and Maxillopalpebral synkinesis. Synkinesis or synkinetic movement is a neurological condition wherein an intentional movement of the muscle causes the synchronous constrictions and contraction of other involuntary muscles. In MGJWS, during masticating motions of the jaw, it is linked to synkinetic movements of the upper eyelid. This usually is unilateral, but can also be bilateral in some cases. This is caused by a persistent connection which is abnormal linking the superior division of oculomotor nerve with the motor branches of the trigeminal nerve.Causes and speculationStudies show that people with Marcus Gunn disease may not necessarily have any past familial records concerning this disorder. Hence it can be safely said that this disorder is not passed down within generations. However, some cases do report multiple cases of this phenomena occurring within one family at a given point of time, but so far the genetic lineage causing this phenomena is unknown.Roughly fifty percent of the MGJWS cases are discovered to be congenital. Since any hereditary relationship linking to this disorder is yet to be discovered, it can be assumed that it occurs due to genetic variations during foetal development. It has been seen that there could be various reasons leading up to Marcus Gunn phenomenon and in certain cases children born with this disorder are also born with other congenital defects caused by genetic or chromosomal mutation.InheritanceIn every living being, the nucleus of every cell contains the genetic material which is passed down within species and is the unique identity of an individual. The humans, contain chromosomes in the nucleus which are 46 in number. These are further paired in 23 groups, numbered from 1 to 22 and known as Autosomal chromosomes. The 23rdpair known as the sex chromosome has 2 designated chromosomes namely, X and Y. Apart from the 22 autosomal pair, males have XY sex chromosome pair and females have XX. On the basis of banding patterns, chromosomes are then subdivided and each band is numbered. These bands contains thousands of genes whose location are distinguished by the numbering. Furthermore, every chromosome consist of a long arm ‘q’ and a short arm ‘p’. For example, 18q12 refers to the 12th band of the long arm in the 18th chromosome.Genomic disorders such as Marcus Gunn phenomena hence can be ascertained on the basis of gene combinations for a particular trait which are inherited from either of the parental chromosome. In the case of MGJWS, some clinical researchers hypothesize that there is a chance of around half of the MGJWS cases can be ascertained through genetic combinations. The exact location of the gene on the chromosomal sites and its nature is still unknown for this disorder, but some studies suggest that there is a chance that it could be disseminated as an autosomal dominant trait.Diagnosis and TherapyIn infants, the visual acuity is checked to see if there is any presence of Lazy eye or Amblyopia (a disorder in which an abnormal visual development leads to reduced vision capabilities in one of the eyes).Tests like Pupillary examinations to check focus of the eye and Cycloplegic refraction tests are carried out to find any disorders wherein the eye might have varying refractive powers (Anisometropia).Ptosis can be assessed by considering the degree of it (refer to the table below) that is, from mild ptosis to severe ptosis. The head position is evaluated, as in a child with ptosis lifting of the chin is seen to attain better vision. Vision loss may occur in cases wherein if ptosis remains untreated. At severe stage surgery can be considered.

As far as prolepsis and treatment of diseases goes, recuperative plants are of specific significance in medication. The after effects of studies and research have indicated that some dynamic elements of recuperative plants are helpful for relief from discomfort and disease; research have additionally demonstrated that some therapeutic herbs have cell reinforcement and mitigating impacts in vitro. The utilization of domisticated medications has seen an extraordinary upsurge all around. In developed nations, many belittle them to a great extent because of social adequacy, accessibility and cost. Lately, be that as it may, there has been a continuous growing concern of usage of such medicinal plants. This has made a circumstance of vacillation in conversations with respect to their utilization. Some therapeutic plants are characteristically dangerous and toxic by virtue of their constituents and can cause antagonistic responses if improperly utilized. Different factors, for example, herb-medicated associations, absence of adherence to great assembling practice, poor administrative measures and contamination may likewise prompt to unhealthy and life threatening circumstances in their utilization. This article is a literature review of five most common medicinal plants which have equally toxic effects if used improperly.