• It usually originates in the nasal conjunctiva on the horizontal meridian of the limbus. (mhmedical.com)
  • Pterygia are more likely than pinguecula to be found on the nasal conjunctiva and bilateral. (mhmedical.com)
  • Pterygium appears as a raised vascular triangular area of bulbar conjunctiva that encroaches onto the cornea. (mhmedical.com)
  • Pingueculae are found more often on the nasal side of the conjunctiva. (noeltempleton.com)
  • Ocular cicatricial pemphigoid (OCP), commonly known as a subtype of mucous membrane pemphigoid, is a bilateral, progressive autoimmune conjunctivitis, leading to cicatrization and shrinkage of the conjunctiva with opacification of the cornea. (reviewofoptometry.com)
  • There was a pseudopterygium in OS in the nasal and superonasal area from 7 to 12 o' clock, where the conjunctiva had grown over the cornea (Fig. 1A). (surajeyeinstitute.org)
  • Pterygium is a non-malignant, slow-growing conjunctival fibrous vascular tissue of the conjunctiva. (researchsquare.com)
  • Pterygia and pingueculae are found on the horizontal meridian. (mhmedical.com)
  • A small area of yellowish "heaped up" conjunctival tissue is seen adjacent to the nasal limbus. (mhmedical.com)
  • Research suggests the more common nasal side occurrence is related to the light passing medially through the cornea, which focuses on the nasal limbus, whereas the nose may reduce the intensity of the UV light to the temporal limbus. (reviewofoptometry.com)
  • A pinguecula is a vascularized growth of tissue, often bilateral, situated at the nasal or temporal limbus. (missionforvisionusa.org)
  • The loose connective tissue under the epithelium contains a large number of fibroblasts and abundant capillaries, which indicates that the pterygium epithelial cells have a strong ability to proliferate and migrate. (researchsquare.com)
  • Pinguecula is an extremely common, inocuous, usually bilateral and asymptomatic condition. (noeltempleton.com)
  • However, with encroachment on the cornea, pinguecula become pterygia and may produce visual symptoms. (missionforvisionusa.org)
  • Pterygium mimics include localized conjunctival neoplasia, conjunctivitis, and episcleritis. (mhmedical.com)
  • Symptoms of both are bilateral, intense papillary conjunctivitis with eyelid edema, chemosis, and mucopurulent discharge. (msdmanuals.com)
  • Aims To determine prevalence of pterygium, its role as main cause of unilateral and bilateral visual impairment and blindness and its impact on refractive errors from adults living in a high ultraviolet exposure area in the Brazilian Amazon Region. (bmj.com)
  • Prevalence of pterygium as cause of visual impairment and blindness was 14.3% and 3.9%, respectively. (bmj.com)
  • Surgical excision by the ophthalmologist is indicated if the pterygium interferes with contact lens wear, encroaches significantly on the visual axis resulting in induced astigmatism or opacity, or restricts eye movement. (mhmedical.com)
  • Following surgical excision, recurrence of pterygia is common. (mhmedical.com)
  • Surgical excision is the main treatment of pterygium, but the postoperative recurrence rate is high, the appearance of the eye is not ideal, postoperative foreign body feeling has been a difficult problem of clinical treatment. (researchsquare.com)
  • At present, there are many surgical methods for pterygium, including simple pterygium excision. (researchsquare.com)
  • Pterygium excision combined with autologous conjunctival flap transposition, pterygium excision combined with amniotic membrane transplantation, pterygium excision combined with autologous limbal stem cell transplantation and so on [12] . (researchsquare.com)
  • It is to be distinguished clinically from pterygium , which is a wedge shaped area of fibrosis that appears to grows into the cornea . (noeltempleton.com)
  • Pterygium extends to cover the cornea, which can cause significant irregular corneal astigmatism, pupil occlusion and affect visual acuity. (researchsquare.com)
  • The postoperative follow-up period (6 months), the recurrence rate of pterygium was 0.21%.Patients have higher satisfaction with appearance, and have no obvious foreign body sensation, photophobia, tearing and other subjective symptoms. (researchsquare.com)
  • Discussion and conclusion Extensive fascial resection combined with autologous limbal stem cell sharing transplantation for the treatment of pterygium, the patient's appearance satisfaction is higher, and the recurrence probability is lower than the average recurrence rate of limbal stem cell transplantation. (researchsquare.com)
  • Conclusions Pterygium was highly prevalent and the second cause of visual impairment and blindness after provision of refractive correction. (bmj.com)
  • Purpose: Compare the safety and efficacy of wavefront-guided photorefractive keratotomy (PRK) 6 months after cross-linking (CXL) to wavefront-guided PRK alone for refractive correction in patients with bilateral asymmetric corneal topography. (bvsalud.org)
  • Pterygia may be asymptomatic or become inflamed, causing mild symptoms of irritation and foreign-body sensation. (mhmedical.com)
  • Facies deformities include asymmetry, flat nasal bridge, and hemangioma. (medscape.com)
  • Pterygium (Greek, pterygion , meaning wing-like) is a benign proliferation of fibrovascular tissue. (mhmedical.com)
  • After surgical treatment of pterygium, there will still be a small number of mutant epithelial stem cells remaining. (researchsquare.com)
  • Therefore, apart from treating general ear, throat and neck conditions, A/Prof Thong's particular area of specialty is that of the nose and sinus (e.g. nasal allergy, nasal obstruction, nose bleeding, sinus infections, polyps). (nuh.com.sg)
  • However, Botox cannot be injected into all areas of the face, because it is most commonly used for the upper face, for example, the forehead, over the eyebrows, the edges of the eye (claw-like lines) and in some cases, the nasal corners of the nose. (alomedical.com)
  • This is not the right way to correct the nasal imperfections because there is a risk of infection or nose necrosis (blackening of the skin). (alomedical.com)
  • The overall development of the palate involves the formation of the primary palate followed by the formation of the secondary palate.At approximately 30-37 days' gestational age (GA), the primary palate forms by the growth and fusion of the medial nasal, lateral nasal, and maxillary processes (see the image below). (medscape.com)
  • The maxillary process, derived from the proximal half of the first arch, grows to meet and fuse with the nasal processes that have grown and moved in association with the olfactory placode. (medscape.com)
  • Iliac horns are bilateral, conical, bony processes that project posteriorly and laterally from the central part of the iliac bones of the pelvis. (nih.gov)
  • Research similarly revolves around sino-nasal conditions (especially nasal polyps and chronic sinusitis), and snoring and sleep apnea (including running trials with A*Star to develop better ways of monitoring such patients). (nuh.com.sg)
  • Significantly higher hyperopic refractive errors were found in eyes with pterygium ≥3 mm reaching or not pupillary margin. (bmj.com)
  • Risk factors for pterygium were male gender, advanced age, lower education and rural residency. (bmj.com)
  • Ultraviolet radiation, high temperature, dusty, dry and smoked environment can all be the risk factors of pterygium. (researchsquare.com)
  • Decreased visual acuity may result as the pterygium encroaches on the visual axis or if the lesion induces astigmatism. (mhmedical.com)
  • Ishijima K, Shinmei Y , Nozaki M, Yamaguchi S, Chin S, Ishida S. Sudden bilateral vision loss due to third ventricular cavernous angioma with intratumoral hemorrhage - case report. (hokudai.ac.jp)
  • Craniofacial features include synophrys, highly arched and/or thick eyebrows, long eyelashes, short nasal bridge with anteverted nares, small widely spaced teeth, and microcephaly. (nih.gov)
  • Strategies to provide pterygium early detection and proper management should be considered by healthcare authorities in this population. (bmj.com)
  • Go to Cleft Lip , Bilateral Cleft Lip Repair , Cleft Palate Repair , and Unilateral Cleft Lip Repair for complete information on these topics. (medscape.com)
  • Is it recommended to use gel or fillers to repair nasal problems? (alomedical.com)
  • The impact of high-flow nasal cannula (HFNC) on coughing distance: implications on its use during the novel coronavirus disease outbreak. (nuh.com.sg)
  • Older age and rural residence were associated with pterygium ≥3 mm reaching or not pupillary margin, while higher education was a protective factor for pterygium ≥3 mm reaching pupillary margin. (bmj.com)