Reversal of Sensation of Conjunctival Autograft after Pterygium Surgery

Sakarya, Yaşar; Sakarya, Rabia; Kara, Selçuk

doi:10.5301/ejo.5000082

Cited by 6 publications

(12 citation statements)

References 24 publications

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“…However, Sakarya et al 9 reported that 1 month after surgery nasal CS was significantly reduced compared to initial values. It is worth mentioning that, surgical procedures in both studies were similar except for the use of fibrin glue and a pressured eye patch during 1 week in Sakarya's work.…”

Section: Discussionmentioning

confidence: 94%

“…Nevertheless, previous data 9 suggest that CS is not at all recovered and nothing is known about factors that could affect the process. To know these factors could help clinicians to establish the right time for surgery with a successful and speed CS recovery, thus protecting the ocular surface.…”

mentioning

confidence: 94%

“…To our knowledge, two studies 8,9 , with a limited number of cases, have analyzed corneal sensitivity (CS) in pterygium patients and both reported evidence of corneal hypoesthesia. In agreement with these findings, changes in the sub-basal nerve plexus were observed in affected corneas, using in vivo laser scanning confocal microscopy 10, 11 …”

Section: Introductionmentioning

confidence: 99%

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Determining Factors for Fast Corneal Sensitivity Recovery After Pterygium Excision

Julio

Campos

Pujol

et al. 2016

Cornea

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Purpose: To establish determining factors for fast corneal sensitivity (CS) recovery after pterygium excision.Methods: Thirty-two eyes of 14 males and 18 females with primary nasal pterygium were recruited. Differences in CS (in the four quadrants and the center using Cochet-Bonnet esthesiometer), pterygium corneal area (PCA), tear osmolarity, tear break up time, Schirmer test, and ocular symptoms were analyzed before and 1 month after lesion excision. The relationship between CS recovery (difference between the two time points; CS1-CS0) and the other features was assessed.Results: All the studied locations exhibited normal (6 cm) or near normal mean CS at the 2 time points, except tendency for moderate hypoesthesia in nasal CS0 (median 4.5; range: 1.5 -6.0 cm). Point by point comparison revealed significant postoperative improve in nasal location (p=0.008; Wilcoxon rang test) with normal values in 17 eyes (53%) and a median CS1= 5.0 cm (2.5 -5.5 cm) in 15 eyes with no complete recovery. No significant correlation was found between CS0 and the studied variables and CS1 was only significantly correlated with PCA (rho: -0.441; p<0.05). CS recovery also showed significant correlation with PCA (rho= -0.516; p<0.01). Conclusions:Corneal sensitivity recovery after pterygium excision showed important variability and the only studied factor that seems to be determinant could be PCA. It would be advisable to operate while lesion is relatively small, with lower surgical injury, and faster and complete recovery, thus protecting ocular surface homeostasis.3

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Section: Discussionmentioning

confidence: 94%

mentioning

confidence: 94%

Section: Introductionmentioning

confidence: 99%

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Determining Factors for Fast Corneal Sensitivity Recovery After Pterygium Excision

Julio

Campos

Pujol

et al. 2016

Cornea

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“…In one study, patients with pterygium had lower Schirmer's test results and tear film stability [12], and tear film break-up times (TBUTs) have been found to increase significantly after primary pterygium excision [13,14]. Furthermore, hypoesthesia has been reported in the nasal corneas of patients with pterygium [15,16]. In this regard, corneal sensitivity is a measure of corneal nerve function and indicates the integrity of the protective mechanisms of the ocular surface.…”

Section: Introductionmentioning

confidence: 99%

“…Clinically, complete recovery is usually achieved by 1 month after pterygium excision [25]. Even though sensitivity is decreased in pterygium-affected corneas [15,16], no previous investigations have studied how corneal sensitivity is related to lesions in the corneal nerve fibers in patients with pterygium. Moreover, several studies have reported that corneal sensitivity recovers before reinnervation after corneal surgery [26,27].…”

Section: Introductionmentioning

confidence: 99%

Corneal Reinnervation and Sensitivity Recovery after Pterygium Excision

Zhao

Zhang

Liang

et al. 2020

Journal of Ophthalmology

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Purpose. To evaluate changes in corneal sensitivity and subbasal nerve density after pterygium excision. Methods. This prospective trial included 22 eyes with nasal primary pterygium and 18 controls. Corneal sensitivity was evaluated using a Cochet–Bonnet esthesiometer in the nasal, superior, temporal, inferior, and center quadrants of the cornea before surgery and 10 days, 1 month, and 3months after surgery. The central cornea was analyzed using in vivo confocal microscopy (IVCM) before surgery and 1 and 3 months after surgery. Subbasal nerve density and other nerve parameters were analyzed using NeuronJ. Nerve tortuosity was evaluated and graded in individual IVCM scans. The tear film break-up time (TBUT) test and Schirmer’s test were performed before surgery, as well as 1 and 3 months after surgery. All the same tests were performed in the controls. Results. All affected eyes showed a significant increase in corneal sensitivity in the nasal corneal quadrant after surgery when compared with preoperative data (F = 37.3; P<0.01). Compared with controls, pterygium patients demonstrated decreased corneal subbasal nerve density (P<0.01), fewer nerve trunks (P<0.01), and fewer nerve branches (P<0.05). However, an increased central corneal subbasal nerve density was observed 1 month after surgery compared with preoperative data, after which the density became stable (F = 9.62; P<0.01). Nerve tortuosity showed no difference between the two groups or across different time points in patients. Similarly, patients with pterygium demonstrated a decrease in TBUT (P<0.01) when compared with controls. A tendency toward increase was observed in the TBUT test after pterygium excision (F = 2.873; P=0.07). However, no difference was observed in Schirmer’s test. Conclusion. Pterygium patients demonstrated deteriorated corneal subbasal nerve fibers when compared with healthy controls in terms of nerve length, nerve trunks, and nerve branches. Therefore, pterygium excision improves corneal sensitivity and increases corneal subbasal nerve density.

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Surgical treatment of pterygium

Petrayevsky

Тришкин

2018

Vestn. oftal'mol.

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Pterygium is one of the modern problems of ophthalmology. The exact etiology and pathogenesis of this disease has not been reliably established and, as a result, there is no universal method for its recurrence-free treatment. The literature data on various methods of pterygium surgical treatment such as 'bare sclera', conjunctival autograft, limbal stem cells transplantation techniques, amniotic membrane plasty and other methods was analyzed. The advantages and disadvantages of those surgery methods were identified. With consideration of the new data on proliferative nature of the disease, the results of adjuvant treatment of pterygium using cytostatics and anti-VEGF drugs were examined. Introduction of new technologies for the treatment of pterygium in practical health care can significantly improve the effectiveness of surgeries, reduce the incidence of postoperative complications and the number of relapses of the disease.

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Reversal of Sensation of Conjunctival Autograft after Pterygium Surgery

Abstract: Anesthesia at first month and hypoesthesia at second and third month at conjunctival autograft was observed after pterygium surgery. Additionally, hypoesthesia was observed at nasal cornea and superior bulbar conjunctiva at the first month.

Cited by 6 publications

References 24 publications

Determining Factors for Fast Corneal Sensitivity Recovery After Pterygium Excision

Determining Factors for Fast Corneal Sensitivity Recovery After Pterygium Excision

Corneal Reinnervation and Sensitivity Recovery after Pterygium Excision

Surgical treatment of pterygium

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