Assessment of Tactile Sensitivity Threshold Using Cochet-Bonnet Esthesiometer and Semmes-Weinstein Monofilaments and Their Use in Corneal Neurotization

Vinee, Frédéric; Grobnicu, Oana; Errera, Charlotte; Gomart, Gabrielle; Tuzin, Nicolas; Heitz, Antoine; Liverneaux, Philippe; Bourcier, Tristan

doi:10.1097/iop.0000000000001788

Cited by 2 publications

(2 citation statements)

References 32 publications

(46 reference statements)

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“…The CBA is still the most practical choice for functional testing after neurotization [ 92 ] given its wide availability, cost, and ease of use, although the limitations should still be borne in mind. The lower level of reproducibility is particularly relevant when considering the timing of post-neurotization sensitivity measurements.…”

Section: Clinical Measurement and Outcome Reporting In Neurotizationmentioning

confidence: 99%

Corneal Neurotization—Indications, Surgical Techniques and Outcomes

Dragnea

Krolo

Koppen

et al. 2023

JCM

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Corneal neurotization is a promising surgical approach for the treatment of moderate to severe neurotrophic keratopathy. This technique aims to restore corneal sensation by transferring healthy nerves, either directly or via a conduit, to the anesthetic cornea. This review provides a report on the current state of development, evidence, and experience in the field. We summarize the data available from clinical reports and case series, placing an emphasis on the diversity of the surgical techniques reported. While these data are encouraging, they also highlight the need for a consensus in reporting outcomes and highlight how the next step will involve validating putative outcome parameters when researching and reporting corneal neurotization surgery.

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Section: Clinical Measurement and Outcome Reporting In Neurotizationmentioning

confidence: 99%

Corneal Neurotization—Indications, Surgical Techniques and Outcomes

Dragnea

Krolo

Koppen

et al. 2023

JCM

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“…A variety of methods to measure corneal sensitivity was available. The most common one is the Cochet-Bonnet aesthesiometer [13] . Few studies are available regarding the recovery of corneal sensation after the LASEK, and the results have been somewhat contradictory.…”

Section: Introductionmentioning

confidence: 99%

How long does the recovery of corneal sensitivity in different corneal regions take after LASEK?

Mirzajani,

Khezri,

Jafarzadehpur

et al. 2023

Int J Ophthalmol

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AIM: To determine the corneal sensitivity recovery period after laser-assisted sub-epithelial keratectomy (LASEK) refractive surgery and investigate the effects of ablation depth on it. METHODS: In this study examinations were performed on 90 right eyes of 90 people (34 males and 56 females) with an age range of 20-35 and an average of 22.26±3.8 years old. A sensation of 5 corneal regions, including the center and 4 mid-peripheral regions, i.e., nasal, inferior, temporal, and superior, each at a distance of 2 mm from the center of the cornea were measured with a Cochet-Bonnet esthesiometer device in 3-time points including before LASEK, 1 and 3mo after the surgery, respectively. LASEK was performed on individuals with stabilized myopia of -1.00 to -7.00 diopters and astigmatism of less than 2.00 diopters. Furthermore, the individuals were divided into three groups regarding ablation depth. RESULTS: The highest level of corneal sensitivity before surgery was related to the center of the cornea (59.1±7.76), and the highest level of corneal sensitivity loss was also related to this region. The sensation of all measured corneal regions significantly reduced 1mo postoperatively and returned to their preoperative levels 3mo after surgery (mean of 5 corneal regions in levels of preoperation: 58.2±6.48, 1mo postoperation: 57.3±5.84, 3mo postoperation: 58.2±5.49; P<0.05). A significant relationship was found between ablation depth and corneal sensitivity changes in the center and temporal regions (P<0.05). CONCLUSION: Corneal sensitivity in myopia and low astigmatism decreases after LASEK and reaches the preoperative level within 3mo. The depth of ablation during surgery affected the recovery of corneal sensitivity.

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Assessment of Tactile Sensitivity Threshold Using Cochet-Bonnet Esthesiometer and Semmes-Weinstein Monofilaments and Their Use in Corneal Neurotization

Cited by 2 publications

References 32 publications

Corneal Neurotization—Indications, Surgical Techniques and Outcomes

Corneal Neurotization—Indications, Surgical Techniques and Outcomes

How long does the recovery of corneal sensitivity in different corneal regions take after LASEK?

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