1.Comparative study on the use of conjunctival autograft with or without mitomycin-C in pterygium surgery.
Archimedes L.D. Agahan ; Pamela P. Astudillo ; Romeo C. Dela Cruz
Philippine Journal of Ophthalmology 2014;39(2):73-77
<p style="text-align: justify;">OBJECTIVE: To compare the recurrence rate after conjunctival autograft alone versus conjunctival autograft with mitomycin-C in the treatment of primary and recurrent pterygium.
METHODS: This was a prospective, randomized, interventional comparative study of patients with primary and recurrent pterygium who were randomized to receive either simple excision with conjunctival autograft (CA) or simple excision with CA and mitomycM-C applied. They were followed up for 6 months and observed for recurrence of the pterygium. Statistical analyses were used to compare the 2 groups.
RESULTS: Fifty-eight patients (62 eyes) diagnosed with primary and recurrent pterygium were evaluated. The mean age was 44.81 ± 12.35 years (range 25 to 70 years). Thirty eyes were treated with conjunctival autograft (15 primary, 15 recurrent) and 32 eyes (17 primary, 15 recurrent) with conjunctival autograft combined with Mtraoperati-ve application of low-dose raitomycin. -C (0.02% for 3 minutes). The mean follow-up period was 25 ± 1.40 months (range 24 to 28 months). There was a 3.22% recurrence rate (2 eyes) from the recurrent pterygium group. There was no significant difference 11.1 the rate of recurrence (p = 0.53) between the 2 treatments for both primary and recurrent pterygium. No mitomycM C-related complication was observed during the length of the study.
CONCLUSION: Conjunctival autograft surgery alone for primary and recurrent pterygium is effective and safe in reducing the recurrence rate of pterygium within" 6 months.p>
Human
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Male
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Female
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Aged
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Middle Aged
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Adult
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Pterygium
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Mitomycin
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Autografts
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Conjunctiva
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Transplantation, Autologous
2.Age-based estimation of contact lens base curve in Filipino infants.
Pamela Paulita P. ASTUDILLO ; Roland Joseph D. TAN ; Romeo C. DELA CRUZ ; Marissa M. VALBUENA
Acta Medica Philippina 2022;56(8):68-71
<p style="text-align: justify;">Objective. To create an age-based formula to estimate the base curve needed for contact lens fitting using measured central corneal curvature (CCC) with a handheld auto keratometer from ophthalmologically normal infants.p><p style="text-align: justify;">Methods. This is a prospective cross-sectional study involving 70 ophthalmologically normal full-term infants aged 0 to 12 months. The infants were divided into four groups: 0-3 months, >3-6 months, >6-9 months and >9-12 months. CCC was measured with a handheld auto keratometer and was used to compute for the base curve. Differences in CCC between the four groups were measured and linear regression models were used for formula creation.p><p style="text-align: justify;">Results. The mean CCC was highest in group 1 at 45.5 ±2.4 diopters (D). These values slowly decreased as age increased. A formula predictive of the base curve based on the infants age was derived using linear regression analysis. It predicted that for every month increase in age, there is a 0.063 millimeter increase in the base curve (p<0.001).p><p style="text-align: justify;">Conclusion. Infant CCC is highest at birth and gradually decreases as age increases. The formula can predict the base curve needed for contact lens fitting in infants without the need for a handheld autokeratometer.p>
Contact Lenses
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Infant
3.Intravitreous chemotherapy as adjuvant rteatment for vitreous seeding in retinoblastoma: A Philippine tertiary hospital experience
Gary John V. Mercado ; Roland Joseph D. Tan ; Pamela Paulita P. Astudillo ; Mohammad Zeid M. Tungupon
Acta Medica Philippina 2023;57(2):57-62
Background:
Intravitreal chemotherapy has been an effective addition in treating vitreous seeding in retinoblastoma. However, it was only in 2020 that it was used in the Philippines. There is no literature on its use in multiple Filipino retinoblastoma patients.
Objectives:
To describe the clinical course of the four patients who are the first to undergo intravitreal chemotherapy for vitreous seeding of retinoblastoma in the Philippine tertiary hospital.
Methods:
A case series of four eyes of four patients with retinoblastoma who underwent intravitreous injection
of melphalan and topotecan for vitreous seeding at the Department of Ophthalmology and Visual Sciences of a Philippine tertiary hospital.
Results:
Two eyes, with International Intraocular Retinoblastoma Classification (IIRC) Group C with vitreous seeding, responded well to intravitreous melphalan and topotecan. One eye had recurrent vitreous seeding despite 10 intravitreal injections. One eye with IIRC Group E, did not respond to intravitreous chemotherapy and was eventually enucleated. This is the first case series on the local use of intravitreous chemotherapy in the country for vitreous seeding in retinoblastoma. The control of 50% achieved in this case series is lower than in other series due to longer treatment interval from poor follow-up and the presence of advanced disease.
Conclusion
The use of intravitreous melphalan and topotecan can be an effective adjuvant for systemic chemotherapy in controlling vitreous seeding in eyes with IIRC Group C. It is not effective in controlling IIRC Group E disease.
intravitreous
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melphalan
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topotecan
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retinoblastoma
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Philippines