These early findings suggest that the use of corneal stromal lenticules could be a safe and efficient surgical adjuvant for corneal perforation closure with potential clinical application, together with amniotic membrane, as relatively simple and low cost temporary measures to prepare perforated corneas for further definitive procedures.
These findings may help explain the marked improvement in visual parameters obtained from the Keraring 355 degrees in advanced central keratoconus. In addition, these types of rings may be a safe, effective, and minimally invasive way to avoid corneal grafting in advanced keratoconus with a clear cornea.
PurposeThe purpose of this study was to evaluate the longevity results of modified Hughes procedure in reconstructing large lower eyelid defects.BackgroundThe modified Hughes procedure was used to reconstruct large full-thickness lower eyelid defects. Meanwhile, the functional results indicated that ocular surface health in the treated eyes may be affected.Patients and methodsNoncomparative, case series retrospective study was designed after obtaining the approval of the institutional review board at the Ophthalmology Department, Menoufia University, Egypt, where the results of cases who underwent surgery with the modified Hughes procedure during a 7-year interval were evaluated.ResultsEleven patients (seven males and four females) in the age range 59–77 years (mean age 67±5 years) were identified. The follow-up ranged from 12 months to 48 months. Cosmetic, functional, and postoperative results were analyzed.ConclusionDespite the favorable cosmetic results of the Hughes tarsoconjunctival flap, the procedure has its own limitations. The results indicated that it does affect the functions and tear film stability in the treated eyes.
Background
To evaluate corneal biomechanical properties by the Ocular Response Analyzer (ORA) in non keratoconic patients underwent penetrating keratoplasty (PK).
Methods
Corneal hysteresis (CH), corneal resistance factor (CRF), Goldmann- correlated intraocular pressure (IOPg), cornea-compensated IOP (IOPcc) using the ORA, and central graft thickness (CGT) were measured in 30 eyes at least two years after penetrating keratoplasty for non keratoconic indications. IOP using the Goldmann applanation tonometer (GAT) was also obtained after compensation for graft thickness and astigmatism.
Results
The mean age of patients was 33.1 ± 10.13 years; indications for PK were herpetic corneal scar (53.3%), corneal stromal dystrophy (23.3%), traumatic corneal opacity (10%), chemical corneal opacity (6.7%), and Fuchs endothelial dystrophy (6.7%). Mean CH and CRF were 8.52 ± 1.81 mmHg, and 8.56 ± 1.59 mmHg, respectively. Mean CGT was 532.43 ± 30 μm. Mean IOP GAT, IOPg, and IOPcc were 11.88 ± 3.66, 14.64 ± 4.08, and 17.27 ± 4.60 mmHg, respectively (
P
< 0.001). No significant association was found between CGT and IOP readings obtained using either the ORA or GAT. There were significant negative association between CH with both IOP GAT and IOPcc, while CRF had significant positive association with IOPg.
Conclusion
After penetrating keratoplasty for non keratoconic patients, graft biomechanics does not return to average values even 2 years after the operation; moreover, intraocular pressure measurement with ORA gives higher values than thickness compensated GAT.
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