Central corneal opacity. Medical search. Frequent questions

Corneal opacification is a term used when the human cornea loses its transparency. (wikipedia.org)
The term corneal opacity is used particularly for the loss of transparency of cornea due to scarring. (wikipedia.org)
A number of different presentations of leucomatous corneal opacity exist: Adherent leucoma: results when healing occurs after perforation of cornea with incarceration of iris. (wikipedia.org)
The appearance of the cornea is similar to that in congenital glaucoma but without increased corneal diameter and elevated intraocular pressure. (wikipedia.org)
Congenital hereditary stromal dystrophy (CHSD): CHSD is also known as Congenital stromal corneal dystrophy or Congenital stromal dystrophy of the cornea. (wikipedia.org)
In this bilateral Snowflake, whitish opacities appear throughout the cornea. (wikipedia.org)
Experimental mice, i.e., wild-type, Col5a1 f/f and Kera-Cre/Col5a1 f/f ( Col5a1 ∆st/∆st , collagen V null in the corneal stroma) mice in a C57BL/6J genetic background, were subjected to a lamellar keratectomy, and treated with or without UMSC (10 4 cells/cornea) transplantation via an intrastromal injection or a fibrin plug. (molvis.org)
Disorder occurring in the central or peripheral area of the cornea. (curehunter.com)
Corneal epithelial-stromal and stromal dystrophies are a group of inherited disorders of the cornea that are caused by progressive accumulation of deposits within the layers of the cornea. (uiowa.edu)
A corneal disease involving all or part of the cornea, resulting from inadequate blinking. (ackcsc.org)
Partial or total replacement of all layers of a central portion of the cornea. (lookformedical.com)
Corneal ectasia is a group of disorders characterized by corneal weakness or thinning, in which protrusion of the cornea leads to irregular astigmatism and poor visual acuity. (crstodayeurope.com)
We perform DALK if the patient has any of the following: apical corneal scar, very steep cornea (maximum keratometry [K] more than 65.00 D), or a thin cornea at the site of ICRS insertion. (crstodayeurope.com)
Patients with poor BCVA and contact lens intolerance are good candidates for ICRSs, provided the central cornea is clear and peripheral corneal thickness at the incision site is more than 450 μm. (crstodayeurope.com)
These opacities are initially found in the central cornea of younger individuals, and over time become denser and spread to the periphery. (reviewofoptometry.com)
The word corneal opacification literally means loss of normal transparency of cornea. (mdwiki.org)
A corneal scar is either opacity or irregularity in the cornea that can limit the cornea's ability to accurately focus light. (neohioeyes.com)
However, if an eye scar is in the central cornea, over the pupil, it may cause a significant loss of vision. (neohioeyes.com)
They look like a white opacity in the normally clear cornea. (neohioeyes.com)
Corneal topography is like a topographical map of the cornea that shows if the surface is misshapen or irregular. (neohioeyes.com)
The cornea- trained specialists at Northeast Ohio Eye Surgeons can diagnose a corneal scar and have many treatments available to help improve and restore vision. (neohioeyes.com)
At presentation, vital signs were within normal limits and eye exam showed central opacity of the cornea with diffuse conjunctival injection. (jhu.edu)
Peters anomaly is a rare eye malformation resulting in congenital corneal opacity and is part of a spectrum of developmental anomalies of the cornea, iris and lens termed "anterior segment dysgenesis. (eyerounds.org)
Peters anomaly was first described in 1906 by Albert Peters as a central corneal leukoma with variable synechiae between the iris and cornea and a defect in Descemet's membrane and the corneal endothelium. (eyerounds.org)
Typically, a ring-shaped yellow-white opacity composed of innumerable fine needle-shaped crystals forms in Bowman layer and the adjacent anterior stroma of the central cornea. (rareguru.com)
The central portion of the cornea is mainly affected which thins out con�siderably. (ijo.in)
This scarring can cause the eyelids to turn inward (trichiasis), forcing the eyelashes to rub against the cornea, which is painful and can lead to corneal opacity and irreversible blindness. (who.int)
The opaque area (opacity) of the cornea varies in size and intensity from a small, faint streak to a large, white cloudy area that covers the front surface of the eye. (medlineplus.gov)
Peters anomaly type I is characterized by an incomplete separation of the cornea and iris and mild to moderate corneal opacity. (medlineplus.gov)
Type II is characterized by an incomplete separation of the cornea and lens and severe corneal opacity that may involve the entire cornea. (medlineplus.gov)

Nebular corneal opacity is a faint opacity which results due to superficial scars involving Bowman's layer and superficial stroma. (wikipedia.org)
Macular corneal opacity is a semidense opacity produced when scarring involves about half the corneal stroma. (wikipedia.org)
Leucomatous corneal opacity is a dense white opacity which results due to scarring of more than half of the stroma. (wikipedia.org)
Maintenance of a transparent corneal stroma is imperative for proper vision. (molvis.org)
The corneal stroma is composed of primarily collagen fibrils, small leucine-rich proteoglycans (SLRPs), as well as sparsely distributed cells called keratocytes. (molvis.org)
Being a small protein roughly the size of albumin, it has the capability to diffuse through the corneal stroma. (uiowa.edu)
Irregular, grey-white, geographic-like opacities are located in the Bowman layer and anterior stroma. (uiowa.edu)
In more advanced stages of the disease, the opacities can extend to the limbus and deeper stroma (2). (uiowa.edu)
It is characterized by lattice lines which are linear, radially oriented, branching refractile opacities described as 'glass like' located in the anterior stroma (See Figure 2A and 2B). (uiowa.edu)
In these dogs, lesions are circular or semicircular central crystalline deposits in the anterior corneal stroma that appear between 2 and 5 years of age. (ackcsc.org)
A progressive degenerative noninflammatory ectatic disease, keratoconus compromises the integrity of collagen matrix in the corneal stroma. (crstodayeurope.com)
Superficial corneal dystrophies affect the corneal epithelium, Bowman's layer and, initially, the anterior portion of the stroma. (reviewofoptometry.com)
The corneal stroma and Descemet membrane contain sheet-like opacities with clear intervening areas. (arizona.edu)
These opacities are concentrated in the posterior stroma and are sometimes seen from limbus to limbus whereas in other cases they occur mostly peripherally. (arizona.edu)
Schnyder corneal dystrophy (SCD) is a rare form of stromal corneal dystrophy (see this term) characterized by corneal clouding or crystals within the corneal stroma, and a progressive decrease in visual acuity. (rareguru.com)
Over time, small white opacities develop in the corneal stroma along with a diffuse haze. (rareguru.com)

Alterations in the spacing of collagen fibrils in a variety of conditions including corneal edema, scars, and macular corneal dystrophy is clinically manifested as corneal opacity. (wikipedia.org)
Posterior polymorphous corneal dystrophy (PPMD, PPCD): PPCD, also known as Schlichting dystrophy, is an autosomal dominant disorder of the corneal endothelium and Descemet's membrane. (wikipedia.org)
Central corneal mosaic opacities in Schnyder's crystalline dystrophy. (medscape.com)
Reis-Bücklers, formerly known as Granular corneal dystrophy type III or Corneal Dystrophy of Bowman's type I, typically present with normal corneas at birth but develop painful recurrent erosions, opacification, and progressive vision loss within the first decade of life (1). (uiowa.edu)
The hyaline-like material consists of rod-like bodies ultrastructurally, which helps distinguish it from Thiel-Behnke corneal dystrophy (1, 2). (uiowa.edu)
Lattice corneal dystrophy (LCD) is the most common of the corneal epithelial-stromal dystrophies. (uiowa.edu)
The purpose of this study was to identify the genetic cause and describe the clinical phenotype of Schnyder corneal dystrophy (SCD) in six unrelated probands. (biomedcentral.com)
There may be times a clinician sees a pattern of dots, spots, lines or a combination of all three on both corneas and wonders if the patient has a corneal dystrophy or a corneal degeneration. (reviewofoptometry.com)
Therefore, any unusual pattern of corneal opacities associated with corneal neovascularization is not a dystrophy and clinicians should investigate other etiologies. (reviewofoptometry.com)
Recognizing a corneal dystrophy is important for prognosis of vision loss and early treatment to help avoid future vision loss. (reviewofoptometry.com)
A well-defined corneal dystrophy in which the gene is mapped and the mutation that causes the dystrophy is known. (reviewofoptometry.com)
A well-defined corneal dystrophy that is mapped to one or more specific chromosomal loci but the causative gene or genes are not known. (reviewofoptometry.com)
A well-defined corneal dystrophy that has not been mapped to any specific chromosomal locus. (reviewofoptometry.com)
A suspected or new corneal dystrophy that has not been well-defined as a corneal dystrophy. (reviewofoptometry.com)
Anong the missing genes are those for the 4 small leucine-rich proteoglycans associated with this form of corneal dystrophy. (arizona.edu)
Odent S, Casteels I, Cassiman C, Dieltiens M, Hua MT, Devriendt K. Posterior amorphous corneal dystrophy caused by a de novo deletion . (arizona.edu)
Connect with other caregivers and patients with Corneal dystrophy crystalline of Schnyder and get the support you need. (rareguru.com)
The prevalence of this form of corneal dystrophy is not known. (rareguru.com)
Name: Corneal Dystrophy Foundation 6066 McAbee Rd. (rareguru.com)

Signs and symptoms include the following: Loss of vision or blindness (when dense opacity covers the pupillary area) Blurred vision (due to astigmatic effect and light scattering) Glare Congenital corneal opacity that affecting vision will cause amblyopia. (wikipedia.org)
Congenital opacities may occur as developmental anomalies or following birth trauma. (wikipedia.org)
Pediatric corneal opacities may be congenital or acquired. (wikipedia.org)
The purpose of this study is to examine the therapeutic efficacy of human umbilical cord mesenchymal stem/stromal cells (UMSCs) in treating congenital and acquired corneal opacity associated with the loss of collagen V. (molvis.org)
Birth prevalence and characteristics of congenital corneal opacities. (bvsalud.org)
To report the birth prevalence and natural history of congenital corneal opacities among a population -based cohort of children . (bvsalud.org)
Fourteen patients were diagnosed with a congenital corneal opacity during the 40-year study period for a birth prevalence of 1 in 5188 live births . (bvsalud.org)
Four patients had congenital glaucoma , 4 had limbal dermoids , 2 had sclerocornea, and 1 patient each had Descemet's tear from birth trauma , herpes simplex virus type 1 keratitis , corneal leukoma , and an undiagnosed scar . (bvsalud.org)
Six (42.8%) patients required treatment for their underlying corneal opacity including the four patients with congenital glaucoma . (bvsalud.org)
In this 40-year cohort, congenital corneal opacities were relatively rare and the result of a variety of disorders. (bvsalud.org)
Congenital corneal opacity that affecting vision will cause amblyopia. (mdwiki.org)
This condition is one of a group of disorders known as congenital corneal opacities, which affect 3 to 6 individuals per 100,000. (medlineplus.gov)

Microstructural analysis using confocal laser scanning microscopy evaluated increased corneal thickness, decreased number of cells, increased debris or specific deposits, and unusual microstructures. (scielo.br)
In patients without a past history of ocular surgery, the mean central corneal thickness was 643.05 ± 37.67 µm and the mean endothelial cell count was 3,349.44 ± 408.17 cells/mm 2 . (ekjo.org)
The most significant factor that determined VA improvement in eyes with LV using LEW was the corneal opacity grade, while the corneal topographic parameters, including keratometric refractive parameters (K max , K s , K f , and Cylinder), higher-order aberrations (HOAs), and central corneal thickness (CCT), showed no or limited impact on the VA improvement effect by LEW in LV. (fortunejournals.com)
The TONOREF™ III provides the automated calculation function of the corrected IOP based on the central corneal thickness. (nusamedical.com)

The superficial pathologic corneal tissue needs to be excised. (rareguru.com)

Corneal adverse reactions may include findings upon eye examination and/or changes in visual acuity (see sections 4.4 and 4.8). (medicines.org.uk)
The corneal examination finding(s) and the decline in best corrected visual acuity (BCVA). (medicines.org.uk)
The control eyes all presented normal visual acuity, intraocular pressure, and corneal appearance. (scielo.br)

There is little or no progression of the corneal opacification and vision varies widely. (arizona.edu)
Note the more significant corneal opacification in the right eye compared to the left. (eyerounds.org)
The decision was made to observe the left eye as the corneal opacification had improved at his 1 month visit and there was an excellent view to the posterior pole. (eyerounds.org)
Peters anomaly has a wide spectrum of severity and corneal opacification is bilateral in approximately 80% of cases [3]. (eyerounds.org)
The diagnosis of Peters anomaly is made clinically with the finding of corneal opacification with corneal edema and underlying loss of Descemet's membrane and endothelium. (eyerounds.org)

PPMD patients with bilateral, corneal opacities that can affect vision, descemet's membrane endothelial keratoplasty or penetrating keratoplasty are the treatments of choice to improve vision and to avoid amblyopia. (wikipedia.org)
The keratoprosthesis is intended to replace the damaged corneal tissue and restore vision of the patients with bilateral corneal disease. (medgadget.com)
Although de novo occurrence of mutations in UBIAD1 is extremely rare, SCD should be considered in the differential diagnosis of bilateral corneal haze and/or crystal deposition, especially in children. (biomedcentral.com)
A 2-day-old, 1920 gram infant born at 36 weeks gestation via caesarean-section due to suspected intrauterine growth restriction was evaluated for bilateral corneal opacity noted at the time of delivery (Figure 1). (eyerounds.org)
Bilateral corneal opacities at 2 days of age. (eyerounds.org)
Bilateral corneal opacities during examination under anesthesia. (eyerounds.org)
Small bilateral corneal opacities with associated iridocorneal adhesions in a patient with Peters anomaly. (eyerounds.org)

One of the major complication of adherent leucoma is Secondary glaucoma Corneoiridic scar: if iris tissue is incarcerated and incorporated within the scar tissue, as occurs in healing of a large sloughed corneal ulcer, it is called a corneoiridic scar. (wikipedia.org)
Diabetic retinopathy (17%), corneal opacities (14%), cataract (12%) and glaucoma (9%) were also important. (who.int)
Later complications such as cataracts, glaucoma and corneal opacity can lead to progressive vision loss. (moorfieldseyecharity.org.uk)

TGFβI is located on chromosome 5q31 and codes for keratoepithelin, a protein secreted by corneal epithelium. (uiowa.edu)
Microscopica/ly, fungal elements with injlammatory reaction characterized hy polymorphnuclear cel/s, hyperemia and edema were markedly seen in the conjunctival and corneal epithelium and, their lamina propria. (ankara.edu.tr)
In early stages of the disease, focal opacities are present in the basal epithelium, associated with sub-basal nerves. (arizona.edu)
Dendritic cells can infiltrate the central epithelium and normal limbal palisade architecture is absent. (arizona.edu)
The corneal epithelium and endothelium as well as Descemet membrane are spared. (rareguru.com)

Depending on the density, corneal opacity is graded as nebular, macular and leucomatous. (wikipedia.org)
Central acuity is reduced secondary to macular degeneration. (arizona.edu)

Kerectasia: In this condition, corneal curvature is increased at the site of opacity (bulge due to weak scar). (wikipedia.org)
This condition leads to the development of irregular astigmatism and steepening of corneal curvature that can cause myopia. (crstodayeurope.com)
This condition however should be well differentiated from keratotorus where there is regular increase in corneal curvature over a limited area. (ijo.in)

UMSC transplantation was successful in recovering some corneal transparency in injured corneas of wild-type, Col5a1 f/f and Col5a1 ∆st/∆st mice. (molvis.org)
Corneal transplantation is one of the common treatment to correct several corneal opacity which involves tissue from human donor. (medgadget.com)
However, the treatment fails in some cases, leading to development of keratoprosthesis which is used when corneal transplantation is not an option. (medgadget.com)
Increasing incidences of corneal blindness along with patients who have failed human corneal transplantation may create potential growth prospects of the keratoprosthesis market. (medgadget.com)
The surgeons at Northeast Ohio Eye Surgeons use the most advanced techniques for corneal transplantation for corneal scars, such as DALK and PK. (neohioeyes.com)

Lymphoid follicles on the tarsal plate or along the corneal limbus, linear conjunctival scarring, and corneal pannus are considered diagnostic in the appropriate clinical setting. (msdmanuals.com)

Rarely, corneal neovascularization regresses completely without treatment, and corneal transparency is restored. (msdmanuals.com)
The clarity of the transplanted corneal graft vanished in 5 eyes with the progression of peripheral neovascularization and subepithelial fibrosis. (ekjo.org)

Since then, Peters anomaly has been subdivided into three types: 1) Peters type I characterized by central corneal opacity with iridocorneal adhesions (Figure 3), 2) Peters anomaly type II with central corneal opacity and cataracts or corneolenticular adhesions, and 3) Peters-plus syndrome with Peters anomaly and short stature, developmental delay, dysmorphic facial features including cleft lip/palate along with cardiac and genital abnormalities [1, 2]. (eyerounds.org)
The central government committee noted that of the 98 captive elephants who were inspected, 22 suffer from impaired vision resulting from corneal opacity and cataracts and 42 have chronic foot problems, including overrun nails and flat footpads from habitually walking on concrete roads! (planetcustodian.com)

13-15 In eyes with deep corneal opacities, penetrating keratoplasty (PKP) may be needed. (crstodayeurope.com)

At our center, corneal collagen crosslinking (CXL) is the preferred treatment in all eyes with documented progression of ectasia on topography. (crstodayeurope.com)
Corneal topography measurements are taken every 3 months for 1 year to ensure corneal stability. (crstodayeurope.com)
In these cases a corneal topography may aid in the diagnosis. (neohioeyes.com)

The 2015 International Committee for Classification of Corneal Dystrophies (IC3D) classification system has divided corneal dystrophies into 4 categories: epithelial and subepithelial dystrophies, epithelial-stromal dystrophies, stromal dystrophies, and endothelial dystrophies. (uiowa.edu)
These include LV owing to corneal diseases, such as keratokonus, corneal dystrophies, opacities caused by infections, or corneal epithelial stem cell deficiency. (fortunejournals.com)
Despite the application of lubricants and topical solcoseryl concentrate, the epithelial defect persisted for 3 months, leaving a central corneal opacity ( Fig. 1A-1C ). (ekjo.org)
There was no observable corneal lesion at postoperative day 1, and the epithelial defect was noticed at a regular follow-up. (ekjo.org)
Anterior segment examination of the right eye revealed a subconjunctival hemorrhage involving the inferior temporal conjunctiva, with an adjacent corneal epithelial abrasion measuring approximately 1 mm in diameter. (medscape.com)

The old classification for corneal stromal dystrophies is listed in Table 3. (uiowa.edu)
Corneal dystrophies are inherited conditions-usually passed on as autosomal dominant traits-characterized by a specific bilateral, often symmetric pattern of opacities. (reviewofoptometry.com)
Since corneal dystrophies are most often autosomal dominant in inheritance, clinicians should examine family members, given as many as 50% can be affected as well. (reviewofoptometry.com)
Corneal dystrophies should not be confused with corneal degenerations, which tend to be asymmetric opacities in the periphery and are the result of aging and metabolic changes-as is the case with crocodile shagreen, Vogt's girdle and arcus senilis-and inflammation, as seen in band keratopathy and Salzmann's nodular degeneration. (reviewofoptometry.com)
Corneal dystrophies are categorized by the layers in which the opacities are found. (reviewofoptometry.com)
However, new discoveries in the mutations that lead to the corneal dystrophies have increased our knowledge of their pathophysiology and may one day result in reclassification. (reviewofoptometry.com)
Knowing the mutations that cause the dystrophies we see clinically will incre ase our understanding of the pathophysiological pathways that result in the deposition of the abnormal proteins interfering with corneal function and vision. (reviewofoptometry.com)
The goal of the International Committee for Classification of the Corneal Dystrophies, formed in 2005, was to devise a new classification system for the corneal dystrophies. (reviewofoptometry.com)
The ability to detect corneal dystrophies is dependent on good biomicroscopic technique and various methods of illumination, as some of the early changes may be subtle. (reviewofoptometry.com)

Associated medical problems can include corneal opacities, hepatosplenomegaly, aseptic destructive arthritis, and metabolic myopathy. (nih.gov)

Corneoiridic scar: If iris tissue is incarcerated and incorporated within the scar tissue, as occurs in healing of a large sloughed corneal ulcer, it is called a corneoiridic scar. (mdwiki.org)
A corneal scar may not change over time, particularly if was caused by an injury or infection. (neohioeyes.com)

Direct illumination using a broad, oblique beam allows clinicians to identify the number, types and location (central/peripheral) of the opacities. (reviewofoptometry.com)
Other rod functions (such as detection of moving objects, or objects in the peripheral visual field) are also affected before cone functions (color vision, detection of objects in the central visual field). (vin.com)
Patients with a Cisd2 homozygous mutation are diagnosed with Wolfram syndrome 2 (WFS2), an autosomal recessive inherited disease characterized by juvenile-onset neurodegeneration of the central and peripheral nervous systems [6]. (healthyconnectionsinc.com)

In January 1992, FDA approved Boston KPro for patients suffering with severe corneal opacity. (medgadget.com)
16-20 Patients with corneal haze or opacity, severe keratoconus (K greater than 65.00 D), acute hydrops, or active or recent ocular infection or inflammation are not candidates for ICRS insertion. (crstodayeurope.com)
A severe form manifested as prenatal loss or early death from progressive central nervous system involvement or infection (type 3). (nih.gov)
These mutations can lead to severe developmental problems, such as incomplete separation of eye structures and complete corneal opacity, or they can result in minor eye abnormalities including small, faint opacities. (medlineplus.gov)

The term corneal blindness is commonly used to describe blindness due to corneal opacity. (wikipedia.org)
To avoid blindness and restore the damaged eye corneal surgery is the most adopted choice. (medgadget.com)
Around 10 million people in the world suffering from corneal blindness. (medgadget.com)
Therefore, rising incidences of corneal blindness are the primary factor driving the growth of the global keratoprosthesis market. (medgadget.com)
Imaging techniques, such as radiography, CT and MRI, may also be used to workup suspected cases of central blindness. (vin.com)

Patients in this category suffer either from opacity of the ocular media (e.g., corneal edema, hyphema/hypopyon, cataract, etc.) or from retinal disease (e.g. (vin.com)

Ocular trauma Corneal ulceration Xerophthalmia, caused by Vitamin A deficiency Trachoma Onchocerciasis Mucous membrane pemphigoid: Ocular form of mucous membrane pemphigoid may cause corneal opacity and loss of vision. (wikipedia.org)
This includes detailed ocular and medical history and a complete ophthalmic examination including UCVA, manifest refraction BCVA, and slit-lamp examination to exclude corneal opacity or inflammation. (crstodayeurope.com)
Ocular form of mucous membrane pemphigoid may cause corneal opacity and loss of vision. (mdwiki.org)

In vivo Heidelberg retinal tomograph (HRT II) confocal microscopy, second harmonic generated (SHG) confocal microscopy, histology, and immunofluorescence microscopy were used to assess the corneal transparency of the regenerated corneas. (molvis.org)
The production of collagen V by transplanted UMSCs may account for the regeneration of corneal transparency, as exemplified by better collagen fiber organization, as revealed with SHG signals. (molvis.org)

In such eyes, the postoperative use of steroids may precipitate a corneal ulcer. (cehjournal.org)
Left eye showed marked cir�cumcorneal congestion with a perforat�ed corneal ulcer in the centre of the corneal opacity. (ijo.in)
The chancre erodes to create an ulcerative crater within the papule, with slightly elevated edges around the central ulcer (see the images below). (medscape.com)

26%), optic nerve hypoplasia, variable degrees of corneal clouding with or without a vascularized pannus, and dysgenesis of the anterior chamber angle are frequently present. (arizona.edu)
minimal view of the anterior segment due to corneal opacity. (eyerounds.org)

If there is a decline in BCVA, the relationship of corneal examination findings to BLENREP should be determined. (medicines.org.uk)
corneal opacity grade was observed using slit lamp examination. (fortunejournals.com)

LEW was performed in 35 patients (38 eyes) with irregular corneal astigmatism. (fortunejournals.com)

It is typically an autosomal dominant, bilateral disease that typically presents toward the end of the first decade of life with symptoms of recurrent corneal erosions and decreased vision. (uiowa.edu)
Physicians should advise patients to administer preservative-free artificial tears at least 4 times a day beginning on the first day of infusion and continuing until completion of treatment as this may reduce corneal symptoms (see section 4.4). (medicines.org.uk)
generated knockout (KO) mice that exhibited Atglistatin WFS2-like clinical symptoms, including early senescence, protruding ears, corneal opacities, thin bones, and low muscle mass [7]. (healthyconnectionsinc.com)

Postoperative worsening of corneal clouding and glaucomatous damage were observed in 4 eyes. (ekjo.org)

This Autorefractor, Keratometer, Pupillometer (up to 9.5mm), Corneal Topographer, and Integrated Wavefront Aberrometer completes 20 diagnostic metrics in less than 10 seconds per eye (including angle kappa, HOAs, average pupil power, RMS value, and point spread function ). (nusamedical.com)
The large pupil zone imaging method measures the central refraction and a large area refraction. (nusamedical.com)

Depending on the density, corneal opacity is graded as nebula, macula and leucoma. (mdwiki.org)
Leucoma-grade opacity will make your task extremely difficult. (cehjournal.org)
showed central leucoma. (ijo.in)

Trachoma is predominantly found in impoverished rural areas of Africa, Asia, and Central and South America. (who.int)

The other 8 (57.1%) patients had a clear central axis. (bvsalud.org)
Lenticular and corneal deposits occurred in patients receiving substantial doses for a prolonged duration. (drugs.com)
Dès le début de la pandémie, l'établissement hospitalier et universitaire d'Oran (EHUO), centre de soins de première ligne, d'une capacité 780 lits desservant environ 2 millions d'habitants s'est complètement réorganisé, en aménageant principalement des circuits pour le tri des patients « suspects Covid 19 ¼. (bvsalud.org)

Individuals with a milder phenotype have mild-to-moderate intellectual disability, impaired hearing, characteristic coarse features, clinical or radiographic skeletal abnormalities, immunodeficiency, and primary central nervous system disease - mainly cerebellar involvement causing ataxia. (nih.gov)
Some of the clinical manifestations of GAG accumulation include coarse facial features, corneal clouding, thickened skin, and organomegaly. (medscape.com)

Devices used in keratoprosthesis like keratoprosthetic comprises of a central optic held in a cylindrical frame. (medgadget.com)
Narrowing the beam to an optic section will reveal the corneal layer that is affected. (reviewofoptometry.com)

A nebular corneal opacity allows the details of the iris to be seen through the opacity. (wikipedia.org)

The retinal whitening involved the outer retina and was without any associated vitreous opacities or inflammation. (medscape.com)

It comprises primary conditions such as keratoconus, keratoglobus, and pellucid marginal degeneration and secondary or iatrogenic corneal ectasia occurring after refractive surgery. (crstodayeurope.com)

An adult patient with a past medical history of an autoimmune disease on systemic steroids and disease-modifying antirheumatic drugs (DMARDs) presents with corneal opacity for several months duration which started with sudden onset eye pain. (jhu.edu)

Corneal arcus and stromal haze were the most prominent phenotypical feature in two probands. (biomedcentral.com)

Aniridia is a rare genetic eye disorder that results in complete or partial underdevelopment of the iris (the coloured front part of the eye) and the fovea (the area of central vision at the back of the eye). (moorfieldseyecharity.org.uk)

Most corneal scars are easy to diagnose during a routine eye exam . (neohioeyes.com)
Sometimes, corneal scars are visible to the naked eye. (neohioeyes.com)

Anatomy4

Diseases15

Analytical, Diagnostic and Therapeutic Techniques and Equipment6

Psychiatry and Psychology2

Phenomena and Processes1

Disciplines and Occupations1

Humanities1

Cornea30

Stroma16

Dystrophy19

Congenital12

Thickness4

Superficial1

Visual acuity3

Opacification5

Bilateral corneal7

Glaucoma3

Epithelium5

Macular2

Curvature3

Transplantation5

Conjunctival1

Neovascularization2

Cataracts2

Keratoplasty1

Topography3

Epithelial5

Dystrophies9

Include corneal1

Scar2

Peripheral3

Severe4

Blindness5

Cataract1

Ocular3

Transparency2

Ulcer3

Anterior2

Examination2

Irregular1

Symptoms3

Postoperative1

Pupil2

Leucoma3

Trachoma1

Patients3

Clinical2

Optic2

Nebular1

Inflammation1

Refractive surgery1

Onset1

Haze1

Disorder1

Scars2