1.Choroidal melanocytoma presenting as a retinoblastoma: a case report
Mohammad Taher RAJABI ; Fahimeh Asadi AMOLI ; Narghes ZANDEVAKIL ; Seyed Hesam HASHEMIAN ; Mohammad Bagher RAJABI
International Eye Science 2009;9(2):220-222
We reported an unusual case of choroidal melano-cytoma who was enucleated with diagnosis of retinoblastoma. A 14-month-old boy has been referred to the clinic with compliant of left eye exodeviation for about 10 months. Ocular examination and imaging work-up revealed retinal detachment with a calcified lesion. The patient underwent enucleation of the affected eye with diagnosis of retinoblastoma. Histopathological findings indicated large, polyhedral shape cells of the tumor with small nuclei and abundant cytoplasm filled with melanin granules, suggesting diagnosis of melanocytoma of the choroids and ciliary body. Many cases of the simulation of the malignant melanoma of the choroids and ciliary body with melanocytoma has been reported previously, but melanocytoma resembling as a calcified lesion and retinal detachment with diagnosis of retinoblastoma is a rare condition which has not been reported anywhere.
2.The Effect of Lower Eyelid Blepharoplasty on Corneal Biomechanical Parameters
Seyed Mohsen RAFIZADEH ; Hesam HASHEMIAN ; Masoud KHORRAMI-NEJAD ; Ali HADI ; Ghazal GHOCHANI
Korean Journal of Ophthalmology 2025;39(1):31-40
Purpose:
To determine the effect of lower eyelid blepharoplasty (LEB) surgery on corneal biomechanical parameters before and 4 months after the procedure.
Methods:
In this prospective longitudinal study, corneal biomechanical parameters measured by Corneal Visualization Scheimpflug Technology device were evaluated before and 4 months after LEB surgery.
Results:
The study included 19 eyelids of the right eyes of 19 patients who underwent LEB, with a mean age of 49.0 ± 10.1 years (range, 37–72 years). Four months after the procedure, significant increases were observed in the first applanation time (p = 0.007), second applanation time (p < 0.001), highest concavity time (p = 0.004), intraocular pressure (p = 0.009), and biomechanical-compensated intraocular pressure (p = 0.007). In addition, the absolute value of highest concavity delta arc length and stress-strain index showed a significant decrease after the LEB (p = 0.021 and p = 0.037, respectively). Other corneal biomechanical parameters did not show significant differences following the LEB procedure (p < 0.05).
Conclusions
The resection and repositioning of the fat pockets in LEB lead to biomechanical changes of the cornea in the direction of increasing corneal stiffness.
3.The Effect of Lower Eyelid Blepharoplasty on Corneal Biomechanical Parameters
Seyed Mohsen RAFIZADEH ; Hesam HASHEMIAN ; Masoud KHORRAMI-NEJAD ; Ali HADI ; Ghazal GHOCHANI
Korean Journal of Ophthalmology 2025;39(1):31-40
Purpose:
To determine the effect of lower eyelid blepharoplasty (LEB) surgery on corneal biomechanical parameters before and 4 months after the procedure.
Methods:
In this prospective longitudinal study, corneal biomechanical parameters measured by Corneal Visualization Scheimpflug Technology device were evaluated before and 4 months after LEB surgery.
Results:
The study included 19 eyelids of the right eyes of 19 patients who underwent LEB, with a mean age of 49.0 ± 10.1 years (range, 37–72 years). Four months after the procedure, significant increases were observed in the first applanation time (p = 0.007), second applanation time (p < 0.001), highest concavity time (p = 0.004), intraocular pressure (p = 0.009), and biomechanical-compensated intraocular pressure (p = 0.007). In addition, the absolute value of highest concavity delta arc length and stress-strain index showed a significant decrease after the LEB (p = 0.021 and p = 0.037, respectively). Other corneal biomechanical parameters did not show significant differences following the LEB procedure (p < 0.05).
Conclusions
The resection and repositioning of the fat pockets in LEB lead to biomechanical changes of the cornea in the direction of increasing corneal stiffness.
4.The Effect of Lower Eyelid Blepharoplasty on Corneal Biomechanical Parameters
Seyed Mohsen RAFIZADEH ; Hesam HASHEMIAN ; Masoud KHORRAMI-NEJAD ; Ali HADI ; Ghazal GHOCHANI
Korean Journal of Ophthalmology 2025;39(1):31-40
Purpose:
To determine the effect of lower eyelid blepharoplasty (LEB) surgery on corneal biomechanical parameters before and 4 months after the procedure.
Methods:
In this prospective longitudinal study, corneal biomechanical parameters measured by Corneal Visualization Scheimpflug Technology device were evaluated before and 4 months after LEB surgery.
Results:
The study included 19 eyelids of the right eyes of 19 patients who underwent LEB, with a mean age of 49.0 ± 10.1 years (range, 37–72 years). Four months after the procedure, significant increases were observed in the first applanation time (p = 0.007), second applanation time (p < 0.001), highest concavity time (p = 0.004), intraocular pressure (p = 0.009), and biomechanical-compensated intraocular pressure (p = 0.007). In addition, the absolute value of highest concavity delta arc length and stress-strain index showed a significant decrease after the LEB (p = 0.021 and p = 0.037, respectively). Other corneal biomechanical parameters did not show significant differences following the LEB procedure (p < 0.05).
Conclusions
The resection and repositioning of the fat pockets in LEB lead to biomechanical changes of the cornea in the direction of increasing corneal stiffness.
5.The Effect of Lower Eyelid Blepharoplasty on Corneal Biomechanical Parameters
Seyed Mohsen RAFIZADEH ; Hesam HASHEMIAN ; Masoud KHORRAMI-NEJAD ; Ali HADI ; Ghazal GHOCHANI
Korean Journal of Ophthalmology 2025;39(1):31-40
Purpose:
To determine the effect of lower eyelid blepharoplasty (LEB) surgery on corneal biomechanical parameters before and 4 months after the procedure.
Methods:
In this prospective longitudinal study, corneal biomechanical parameters measured by Corneal Visualization Scheimpflug Technology device were evaluated before and 4 months after LEB surgery.
Results:
The study included 19 eyelids of the right eyes of 19 patients who underwent LEB, with a mean age of 49.0 ± 10.1 years (range, 37–72 years). Four months after the procedure, significant increases were observed in the first applanation time (p = 0.007), second applanation time (p < 0.001), highest concavity time (p = 0.004), intraocular pressure (p = 0.009), and biomechanical-compensated intraocular pressure (p = 0.007). In addition, the absolute value of highest concavity delta arc length and stress-strain index showed a significant decrease after the LEB (p = 0.021 and p = 0.037, respectively). Other corneal biomechanical parameters did not show significant differences following the LEB procedure (p < 0.05).
Conclusions
The resection and repositioning of the fat pockets in LEB lead to biomechanical changes of the cornea in the direction of increasing corneal stiffness.
6.The Effect of Lower Eyelid Blepharoplasty on Corneal Biomechanical Parameters
Seyed Mohsen RAFIZADEH ; Hesam HASHEMIAN ; Masoud KHORRAMI-NEJAD ; Ali HADI ; Ghazal GHOCHANI
Korean Journal of Ophthalmology 2025;39(1):31-40
Purpose:
To determine the effect of lower eyelid blepharoplasty (LEB) surgery on corneal biomechanical parameters before and 4 months after the procedure.
Methods:
In this prospective longitudinal study, corneal biomechanical parameters measured by Corneal Visualization Scheimpflug Technology device were evaluated before and 4 months after LEB surgery.
Results:
The study included 19 eyelids of the right eyes of 19 patients who underwent LEB, with a mean age of 49.0 ± 10.1 years (range, 37–72 years). Four months after the procedure, significant increases were observed in the first applanation time (p = 0.007), second applanation time (p < 0.001), highest concavity time (p = 0.004), intraocular pressure (p = 0.009), and biomechanical-compensated intraocular pressure (p = 0.007). In addition, the absolute value of highest concavity delta arc length and stress-strain index showed a significant decrease after the LEB (p = 0.021 and p = 0.037, respectively). Other corneal biomechanical parameters did not show significant differences following the LEB procedure (p < 0.05).
Conclusions
The resection and repositioning of the fat pockets in LEB lead to biomechanical changes of the cornea in the direction of increasing corneal stiffness.