Risk factors for simple congenital ptosis / 中华实验眼科杂志

Objective:To identify the risk factors for simple congenital ptosis.Methods:A case-control study was performed.A total of 106 children diagnosed with simple congenital ptosis at the Second Affiliated Hospital of Zhejiang University School of Medicine from October 2018 to January 2021 were recruited as a case group, and 106 sex-matched children without congenital abnormalities were enrolled as a control group at the same period.Ophthalmic examinations, including interpalpebral fissure height and margin reex distance 1, were performed on all participants.A questionnaire survey was administered to their mothers.The questionnaire included demographic information, prenatal maternal diseases, medical treatments and environmental exposures during pregnancy.Univariate analysis was used to compare the differences in variables between the case and control groups.Variables with P<0.20 were retained for multivariate logistic regression analysis to identify the risk factors for simple congenital ptosis.The goodness of fit of the model was evaluated by the Hosmer-Lemeshow test, and collinearity was assessed by the variance inflation factor (VIF). This study adhered to the Declaration of Helsinki.The study protocol was approved by the Ethics Committee of the Second Affiliated Hospital of Zhejiang University School of Medicine (No.2019-136). The method and purpose of the study were fully explained to the children's guardians and written informed consent was obtained. Results:Comparisons of gestational age <37 weeks, birth order ≥2, maternal age, antibiotic use in the first trimester, paternal smoking ≥half a pack per day, and prenatal maternal passive smoking between the two groups were all with P<0.20.Multivariate logistic regression analysis showed that gestational age <37 weeks (odds ratio [ OR]=4.58; 95% confidence interval [ CI]: 1.24-16.85), paternal smoking ≥half a pack per day ( OR=2.28; 95% CI: 1.22-4.28) and prenatal maternal passive smoking ( OR=3.13; 95% CI: 1.16-8.41) were risk factors for simple congenital ptosis.No significant collinearity was found among these identified factors (all VIF<5). Conclusions:Preterm birth, paternal smoking, and prenatal maternal passive smoking are risk factors for simple congenital ptosis.

Bilateral frontalis sling for surgical correction of unilateral and bilateral severe congenital ptosis with poor levator function

Objective@#This study evaluated the functional and cosmetic outcomes after bilateral frontalis sling repair using either expanded polytetrafluoroethylene (ePTFE) or silicone rod for unilateral or bilateral severe congenital ptosis with poor levator function.@*Methods@#This was a non-comparative, interventional case series involving 30 patients with unilateral or bilateral severe congenital ptosis who underwent bilateral frontalis sling repair from February 2012 to November 2018. Medical records including pre- and postoperative photographs were reviewed. The functional and cosmetic outcomes were assessed.@*Results@#There were 15 patients with severe congenital ptosis who underwent ePTFE surgery and 15 patients who had silicone rod surgery. Baseline levator function measured was less than 5 mm in all patients. The mean follow-up duration after surgery was 15.6+6.9 months. Satisfactory eyelid contour was observed in all patients (100%). Postoperatively, all had good to excellent primary eyelid position and effective frontalis action on eyelid elevation. Complications included exposure of the silicone sling material after trauma at the brow area (n=1) and recurrence of ptosis (n=2).@*Conclusion@#Bilateral frontalis suspension in patients with severe congenital ptosis, whether bilateral or unilateral, resulted in excellent functional and cosmetic outcomes using ePTFE or silicone rod.

ASSOCIATION OF CONGENITAL SEVERE PTOSIS WITH FACIAL ASYMMETRY

Purpose: To assess the association of congenital severe ptosis with facial asymmetry compared with general population with same age group with no lid abnormality. Assessment of all 30 patient Method: s with severe unilateral congenital ptosis compared with age matched patients attending OPD with no lid abnormality was done. Various parameters were used to measure facial anthropometry. We found significant asymmetry of upper and lower face index in 4 patients Result: . Upper and lower face index was smaller on ptotic side as compared to the normal side. The observation suggests that severe congenital ptosi Conclusion: s could be associated with facial asymmetry and a trend towards smaller face on the affected side in a certain number of cases.

Corneal curvature and ocular surface changes after operation in congenital ptosis / 中华医学美学美容杂志

Objective:To observe the changes of corneal curvature and ocular surface after congenital ptosis.Methods:A total of 188 patients with congenital blepharoptosis were treated with frontal muscle flap suspension, levator eyelid muscle shortening and fixation, and levator aponeurosis according to different conditions. The postoperative correction effect, corneal curvature, and ocular surface changes were observed.Results:There was no significant difference in the good correction rate among the three methods ( P>0.05). The corneal curvature at 3 months after operation was lower than that before operation and 7 days after operation ( P<0.05). The fluorescein staining score at 7 days after operation was higher than that before operation and 3 months after operation ( F=2 910.05, P<0.05). The tear film rupture time at 7 days after operation was significantly shorter than that before operation and 3 months after operation ( F=758.12, P<0.05). There was no significant difference in tear secretion test before operation, 7 days after operation and 3 months after operation ( P>0.05). The conjunctival congestion score at 3 months after operation was lower than that at 7 days after operation, and the incidence of meibomian gland dysfunction and abnormal eyelash angle at 3 months after operation was lower than that at 7 days after operation ( t=113.56, χ 2=11.02, 11.46, P<0.05). 3 months after operation, the average diopters of 3 mm and 5 mm were higher than those before operation ( t=12.35, 15.19, P<0.05). Conclusions:Frontal muscle suspension, levator eyelid muscle shortening and fixation, and levator aponeurosis are effective in treating congenital blepharoptosis, and can effectively improve the ocular surface and corneal curvature. Clinically, the appropriate one can be selected according to the condition of the child correction method.

Retracted: Prevalence of refractive errors and corneal topographic changes in unilateral congenital ptosis vs the fellow eye: a clinical study

The article titled, "Prevalence of refractive errors and corneal topographic changes in unilateral congenital ptosis vs the fellow eye: a clinical study", published in the International Journal of Research in Medical Sciences, Volume 7, Issue 2, 2019, Pages 442-446, DOI: http://dx.doi.org/10.18203/2320-6012.ijrms20190350 is being retracted due to authorship dispute.

Comparisons of levator shortening and frontal myofascial suspension for treating the moderate and severe congenital ptosis / 国际眼科杂志(Guoji Yanke Zazhi)

@#AIM: To evaluate the effects and complications of levator shortening(LS)and frontalis myofascial suspension(FMFS)for the moderate and severe congenital ptosis.<p>METHODS: Totally 145 cases(188 eyes)with moderate and severe congenital ptosis were analysed retrospectively, hospitalized from January 2014 to December 2017. The clinical effect of both LS group(55 cases 71 eyes)and FMFS group(90 cases 117 eyes)were compared, and the complications of the two groups were observed.<p>RESULTS: The satisfaction rate, basic satisfactory rate and unsatisfactory rate of the two groups were no significant differences(<i>U</i>=-1.415, <i>P</i>=0.147)at postoperative 12mo. But in three different age groups analysis(<5, 5-10 and >10 years old group), FMFS group had the higher satisfactory rate(32.0% <i>vs</i> 8.7%)in <5 years old group(<i>U</i>=-2.244, <i>P</i>=0.025). Eleven eyes of 11 cases with conjunctival prolapsed only occurred in the LS group, 4 eyes of 4 cases with eyelid hematoma only occurred in the FMFS group. However, exposure keratitis, eyelid trichiasis, eyelid contour deformity and blepharoplasty separation occurred in both groups.<p>CONCLUSION: Both surgery methods have the good treatment effects on the moderate and severe congenital ptosis. FMFS has the higher satisfaction rate and the lower unsatisfactory rate in the infant <5 years old.

Ultrasound biomicroscopy image patterns in normal upper eyelid and congenital ptosis in the Indian population

Purpose: To study the features of upper eyelid in healthy individual and different types of congenital ptosis in the Indian population using ultrasound biomicroscopy (UBM). Methods: This was a prospective observational study at a tertiary care center. Eyelid structure of healthy individuals with no eyelid abnormalities (n = 19); simple congenital ptosis (n = 33) cases; Marcus Gunn jaw-winking ptosis (MGJWP, n = 7) cases, and blepharophimosis-ptosis-epicanthus inversus syndrome (BPES, n = 20) cases were studied on a vertical UBM scan using 50-MHz probe. Lid-thickness, tarsal-thickness, orbicularis oculi and levator-Muller-orbital septum-conjunctival (LMSC) complex were measured in primary gaze. Comparison was made between four groups and results were statistically analyzed using ANOVA test. In normal individuals, LMSC measurements were repeated in down-gaze imaging. Results: Skin with subcutaneous tissue, LMSC complex and pre-aponeurotic fat-pad appeared echodense while orbicularis oculi and tarsus appeared echolucent. In primary gaze, mean thickness (± standard deviation) of the eyelid, tarsus, orbicularis oculi and LMSC, respectively, were: 1.612 ± 0.205, 0.907 ± 0.098, 0.336 ± 0.083, and 0.785 ± 0.135 mm in normal individual. LMSC showed 46.64% increase in thickness on down-gaze. The mean eyelid thickness and LMSC were thicker in MGJWP and BPES as compared to normal. In different types of congenital ptosis cases, various patterns of UBM imaging were observed. Conclusion: UBM allows noninvasive imaging of eyelid structures with good anatomical correspondence in normal eyelids and study the structural alterations of eyelids in different types of congenital ptosis. UBM can be used to highlight the anatomical difference in normal eyelids that may help modify the surgery for better cosmetic outcomes. Furthermore, it has the potential to be used in preoperative evaluation and operative planning in certain types of acquired ptosis, which needs to be evaluated.

A quantitative approach to shortening the levator palpebrae superioris to correct congenital ptosis in children / 国际眼科杂志(Guoji Yanke Zazhi)

@#AIM:To develop a feasible method to correct congenital ptosis in children.<p>METHODS: Sixty-four patients(102 eyelids)were divided into three groups based on the degree of ptosis: mild(<2 mm); moderate(3-4 mm)and severe(>4 mm). All patients underwent the same levator resection surgery in which the suspensory system of the LPS is retained. After capturing a standard photograph of primary position, the height of the superior palpebral margin was measured preoperatively by using Image J software to calculate its ideal height required during surgery. Postoperative outcome measures included upper eyelid margin height, degree of scleral exposure and exposure keratitis. The patients were followed-up at 1wk, 1mo and 6mo postoperatively.<p>RESULTS: In the early postoperative period, except two cases with overcorrection, the positions of the eyelid upper margins were normal in all cases in the mild and moderate groups. Six months postoperatively, the eye with overcorrection in the moderate group showed improvement, while the eye in the mild group did not. Seven eyes in the severe group exhibited residual ptosis to varying degrees. The eyelids exhibited appropriate closing functionality; exposure keratitis was absent.<p>CONCLUSION:Using this preoperative quantification technique to guide surgery not only provided a gauge for LPS shortening under general anesthesia, but also increased the success rate of surgery.

Effects of corrective surgery on the ocular surface and refractive in children with congenital ptosis / 国际眼科杂志(Guoji Yanke Zazhi)

·AIM: To investigate the ocular surface and refractive change after the surgery of levator resection and frontalis suspension. ·METHODS:One hundred and twenty-one patients (146 eyes) for corrective surgery of congenital ptosis were selected in our department from July 2014 to June 2016. According to the severity of congenital ptosis, all the children divided into mild group (47 eyes), moderate group (68 eyes) and severe group(31 eyes). All the children were divided into group of less than 5 years old (104 eyes) and group of more than or equal to 5 years old (42 eyes) according to the age. According to the surgical approach, all the children divided into group of levator resection (62 eyes) and group of frontalis suspension(84 eyes). The effects of the two surgeries on the ocular surface and refractive were compared. The relationship between age, severity of postoperative ptosis and postoperative ocular surface, refractive of children were analyzed. ·RESULTS: There were no significant differences in break-up time (BUT), keratometry (Km) and corneal astigmatism (Ast) in the levator resection group and frontalis suspension group (P > 0. 05). There was significant difference between the mild, moderate and severe group on the proportion of excellent corrected to uncorrected (Z=-2.936, P=0.003). The proportion of excellent correction in mild group was higher than that of moderate and severe group(93.6%, 83.8% and 67.7%). The indexes of BUT (F=9.793, P=0.041) and Km (F=11.657,P=0.037) in the three groups decreased with the increase of severity. While the Ast (F=28.417, P<0.01) showed an increasing trend, the difference was significant. In addition, the proportion of excellent correction in <5 year old group was significantly more than≥5 years old group(x2=4.082,P=0.043). The index of Km (t= 2.813, P= 0.006) was higher and Ast (t=-7.741, P<0.01) was lower in the <5 year old group. There was no significant difference in the index of BUT between the two groups after surgery (P>0.05). · CONCLUSION: The corneal refractive power and astigmatism can be improved similarly after treated with levator resection and frontalis suspension surgery. And there is some damage of corneal epithelial in the initial postoperation, but the function of ocular surface can return to normal after a period of time. The less severity of ptosis before surgery,the better improvement of ocular surface and refractive after sugery. There is no correlation between the age and postoperative ocular surface, but earlier surgical treatment may improve the children's refractive power and astigmatism and achieve greater benefits.

Clinical effects of combined fascia sheath suspension and frontal muscle flap suspension in correction of severe congenital ptosis / 中华医学美学美容杂志

Objective To compare the therapeutic effect of combined fascia sheath suspension and frontal muscle flap suspension in the treatment of congenital severe congenital ptosis.Methods 46 cases (58 eyes) with congenital severe upper eyelid prolapse who were treated from March 2015 to March 2016 in Eye Hospital of Hebei Province were selected.The patients were divided into two groups:combined fascial sheath suspension group and frontalis muscle flap suspension.Comparisons of postoperative patients with eyelid height,eyelid radian,corneal exposure with eyes closed,eyelid activity,complication of the situation were carried out.And patient satisfaction survey was conducted.Results The effective rate of combined fascial sheath suspension group was 93.10％,the complication rate was 6.9％,and the patient satisfaction rate was 91.22±0.37,significantly better than the frontal muscle flap suspension group of patients (75.86 ％,24.14 ％ and 75.05 ± 0.28,respectively).The time of closure of the eyelid was shortened,the complications were less,and the eyelid had better activity.The difference between the two groups was statistically significant (P＜0.05).Conclusions Combined fascia sheath for congenital severe upper eyelid droop is significant,with fewer complications and a higher rate of satisfaction,which is worth clinical promotion.

The utility of margin‑reflex distance in determining the type of surgical intervention for congenital blepharoptosis.

Aims: To evaluate the utility of margin‑reflex distance (MRD) as an alternative to levator function (LF) in choosing the appropriate surgical procedure for congenital blepharoptosis. Settings and Design: This was a retrospective, observational study. Subjects and Methods: Records of patients with simple (dystrophic) congenital ptosis who were operated and followed for ≥6 months postoperatively and whose outcomes were deemed as successful were evaluated in the study. Success was defined as a MRD at the last postoperative visit of ≥3 mm. In all cases, levator resection was performed when LF was >4 mm and frontalis suspension when LF was ≤4 mm. Statistical Analysis Used: For statistical evaluations, LF was accepted as the gold standard parameter for deciding on the surgical intervention, and the optimum cutoff point for initial MRD was determined as the point at which sensitivity and specificity was highest at the receiving operating curve for the selection of surgical procedure. Results: Of one hundred and three eyes of ninety patients (44 female/46 male), levator resection was used in 44.7% and frontalis suspension in 55.3%. When the optimum cutoff point for MRD was determined as 0.5 mm, the sensitivity was 71%, specificity was 86%, and the area under the curve that represented the discriminative power of this parameter was found to be 0.826. Conclusion: The MRD at the cutoff point of 0.5 mm may be used as an alternative to LF to determine the type of surgical intervention in patients with congenital blepharoptosis whose LF cannot be reliably obtained in clinical evaluations.

Effect of Congenital Ptosis on Refractive Power of the Corneal Surface / 昆明医科大学学报

Objective To investigate the effects of congenital ptosis on refractive power of the corneal surface.Methods Forty-five patients (90 eyes) with congenital ptosis in the First Affiliated Hospital of Kunming Medical University were examined from October 2013 to June 2015.Corneal topographic analysis was performed in both the ptosis and the normal eyes.The comparison between the ptotic eye and the normal eye was done according to the topographic results.Results Among 90 eyes,55 were ptotic and 35 were normal.Amblyopia was detected in 21 ptotic eyes (38.2％).No correlation was found between amblyopia and the severity of ptosis (x 2=2.617,P＞0.05).Ptotic eye showed an asymmetrical bow tie pattern (23 eyes) and an irregular pattern (32 eyes) on corneal photography and the maximum refractive power occurred at the inferior quadrant of the corneal horizontal axis.Difference value of the average refractive power of the cornea between lower side and upper side in ptotic eyes was higher than that of the normal eyes at 5mm and 7mm diameter areas (P＜0.01) except for 3mm diameter area (P＞ 0.05).Conclusion Congenital ptosis may lead to the change of refractive power of the local corneal surface.Amblyopia has no correlation with the severity of ptosis.

Clinical efficacy of combined procedures for the surgical correction of congenital ptosis accompanied by epicanthus / 中华医学美学美容杂志

Objective To observe the effects of combined surgeries for the correction of congenital ptosis accompanied by epicanthus.Methods 80 cases (105 eyes) of congenital ptosis were analyzed in this study.64 cases (80 eyes),with levator muscle strength more than 4 mm,were treated with suspension of frontal aponeurosis,and 16 cases (25 eyes),with levator muscle strength less than 4 mm,were treated with shorten operation of levator palpebrae superioris.Furthermore,all these patients were corrected the epicanthus at the same time.Results Except the under correction in 5 cases (8 eyes),the remaining patients were corrected satisfactorily.Postoperative palperbal fissure length was averagely increased by 2.0± 1.0 mm,inner canthic diameter was averagely decreased by 4.0± 2.0 mm,the eyelid height was increased by average 9.0±1.0 mm,the inclination of palpebral fissure was 12.0°±2.0°;64 cases (80 eyes) were treated with suspension of frontal aponeurosis,postoperative recurrence were 7.5％ (6/80),no postoperative recurrence were 92.5％ (74/80),complication were 5.0％ (4/80);16 cases (25 eyes) were treated with shorten operation of levator palpebrae superioris,postoperative recurrence were 8.0％ (2/25),and no postoperative recurrence were 8.0％ (2/25);complication rates were 4.0％ (1/25).Conclusions This procedure of combined surgeries can reduce the recurrence rate effectively.Moreover,the satisfactory,functional,and aesthetic results can be obtained simultaneously with this method.

Eyelid Stretching Exercise Performed in Overcorrection after Levator Resection in Congenital Ptosis

PURPOSE: To report the clinical effect of an eyelid stretching exercise in 8 cases of overcorrected congenital ptosis after levator resection and present a literature review. CASE SUMMARY: Eyelid stretching exercise was performed by pushing the margin of the upper eyelid down. If margin reflex distance 1 (MRD1) asymmetry was larger than 1.5 mm compared with the other eyelid after the stretching exercise for 2 weeks, the exercise was extended for 1 more week. This study included 8 eyes of 8 patients who performed eyelid stretching exercise for 2 weeks when overcorrected 1 week after undergoing levator resection. We compared preoperative MRD1 and postoperative MRD1s for 1 month. Overcorrection was corrected satisfactorily in all patients with bilateral symmetry with eyelid stretching exercise for 2 weeks. Additional exercise did not affect MRD1. CONCLUSIONS: In congenital ptosis overcorrected after levator resection, medical treatment including eyelid stretching exercise could be considered before undergoing a secondary operation. Eyelid stretching exercise can be effective when performed early before fibrous tissue bonds are too firm.

Plicatura e reinserção da aponeurose do músculo levantador da pálpebra superior com sutura contínua na correção cirúrgica da ptose palpebral leve e moderada-experiência pessoal / Plication and reinsertion of the aponeurosis of the lifting muscle of the upper eyelid with continuous suture in the surgical correction of light and moderate eyelid ptosis - personal experience

Introdução: A blefaroptose ou ptose palpebral caracteriza-se pelo posicionamento anômalo da pálpebra superior em relação à sua posição normal, que é de 1 a 2 mm abaixo do limbo superior da íris; pode variar, apresentando desde uma queda discreta, até a oclusão total da fenda palpebral. Em geral, trata-se de deficiência muscular ou nervosa, de etiologia congênita ou adquirida, que resulta na impossibilidade de elevação completa da pálpebra superior, podendo também ocorrer por desinserção aponeurótica. Apresenta-se neste trabalho a tática da sutura contínua da aponeurose do músculo levantador ao tarso, ou mesmo na sua plicatura, para o tratamento da ptose leve ou moderada. Métodos: No período de 2006 a 2012, foram realizadas 26 cirurgias, abordando a aponeurose do músculo levantador com encurtamento na relação 4:1, usando sutura contínua em duplo sentido, finalizando-a com ponto em formato de oito. Resultados: Em 88,32% dos casos, os resultados foram bons e, em 11,68%, regulares. Apenas um caso evoluiu com retração na pálpebra superior, elevando o sulco palpebral. Observou-se correção incompleta, com ptose residual de 2 a 4 mm em 2 casos, os quais foram submetidos a revisão cirúrgica após 6 meses.

Introduction: Blefaroptose or eyelid ptosis is characterized by the anomalous positioning of the upper eyelid in relation to its normal position, which is 1 to 2 mm below the upper margin of the iris. It can vary from a slight descent to a total occlusion of the eyelid slit. In general, whether caused by a muscular or nerve deficiency, congenital or acquired, it results in the impossibility to use the muscle to raise the eyelid. It can also occur due to the detachment of the aponeurosis. Presented in this study is the tactic of continuous suture of the aponeurosis of the lifting muscle at the tarsus or at its foldings, for the treatment of light or moderate ptosis. Methods: In the period from 2006 to 2012, we analyzed 26 eyelids submitted to surgical treatment. 24 were operated upon, addressing the aponeurosis of the raising muscle with a shortening in the relation of 4:1 and, in 2 cases, with the reinsertion of the aponeurosis in the raising muscle of the eyelid, using continuous two-way suture completing the same with a stitch in a figure eight. Results: In 88.32% of the cases, the results were considered good, and in 11.68% satisfactory.

Ptosis Repair Using Preserved Fascia Lata with the Modified Direct Tarsal Fixation Technique

PURPOSE: To evaluate the clinical outcome of frontalis sling operation using preserved fascia lata with modified direct tarsal fixation in congenital ptosis patients. METHODS: Forty-seven congenital ptosis patients (60 eyes) who underwent a frontalis sling operation using preserved fascia lata with modified direct tarsal fixation method between March 2001 and December 2008 with a mean follow-up time of 52 months (range, 26 to 122 months) were included in this study. The medical records were reviewed retrospectively. RESULTS: A retrospective chart review was conducted in patients who were diagnosed with congenital ptosis and underwent frontalis suspension surgery using preserved fascia lata with modified direct tarsal fixation from 2001 through 2008 at Dong-A University Hospital. The patients were 34 males and 14 females. The age of the patients ranged from 1 to 18 years with an average age of 4.51 years. At a mean follow-up of 60 months, good final results were achieved in 46 eyes (76.6%), fair in 8 eyes (13.3%), and poor in 6 eyes (10%). The poor results consisted of undercorrection of 1 eye and recurrence in 5 eyes. The accumulative survival rate was 87.2%, with all recurrences occurring within 12 months postoperatively. CONCLUSIONS: Frontalis sling operation by preserved fascia lata with modified direct tarsal fixation appears to be an effective treatment for severe congenital ptosis, showing good long term results.

Effect of the Simultaneous Operation of Levator Resection and Frontalis Suspension for Congenital Ptosis

PURPOSE: To determine retrospectively if a simultaneous frontalis suspension could change the result of undercorrection observed during levator resection in congenital ptosis patients with poor levator functions. METHODS: Eight eyes in the present study were from 5 infants, 4 infants had congenital ptosis and 1 infant had blepharophimosis. The average age was 3.3 years (range: 1.5 to 6.9 years). If the upper lid margin was not positioned on the superior limbus after performing levator resection under general anesthesia, the height of the upper lid margin was controlled by simultaneous frontalis suspension. RESULTS: The average follow-up period was 29.8 months. After surgery on both eyes, all 8 cases showed good results and sudden relapse did not occur. Exposed corneal erosion was observed in 6 eyes, but with artificial tears, eye drops, and ointment there were significant improvements within 1 month in all cases. At final examinations, 6 out of 8 eyes showed excellent or good results; undercorrection in 2 eyes was observed and the lateral portion of ptosis in 1 eye was observed as an eye complication. CONCLUSIONS: If undercorrection caused by levator resection occurs in patients with congenital ptosis, the combination of frontalis suspension surgery may reduce undercorrection and any recurrence that might appear after surgery.

Assessing amblyogenic factors in 100 patients with congenital ptosis / 国际眼科杂志(Guoji Yanke Zazhi)

AIM: To study the frequency of amblyogenic factors in patients with congenital ptosis.congenital ptosis more than 1 year old were included. Amblyopia was defined as best-corrected visual acuity (BCVA) less than 10/10 or a difference between the two eyes of at least 2/10. In patients too young to be measured by the linear Snellen E test, fixation behavior was observed. Different types of amblyopia were assessed for each patient as: 1) anisometropic amblyopia: astigmatic anisometropia≥ 1dpt, hyperopic spherical anisometropia≥ 1dpt, myopic spherical anisometropia≥ -3dpt (with cycloplegia);2) strabismic amblyopia, and 3) stimulus deprivation amblyopia (SDA). Then the total incidence of amblyopia and each type of it were obtained. Patients with uni-and bi-lateral ptosis were also compared. Each specific cause was refractive amblyopia in 29.8%, SDA in 10.5%, strabismic amblyopia in 4.3%. Amblyopia was more frequent in severe ptosis, 76% in patients with covered optical axes (OA), compared to non-covered OA (22.5%). In unilateral ptosis with covered OA, astigmatic anisometropic amblyopia was more frequent, and in bilateral ptosis with at least one eye covered OA, spherical anisometropic amblyopia was more frequent. In both unilateral and bilateral ptosis, SDA was more common if the OA was covered. Paying attention to all causes of amblyopia may be important in preventing amblyopia in a child with a ptotic eye.

Changes in Postoperative Fissure Height after Frontalis Suspension Using Autogenous Fascia Lata

PURPOSE: Most surgeries to correct congenital ptosis in children are performed with the patient under general anesthesia, which makes the postoperative outcome unpredictable. We analyzed the factors influencing postoperative changes in the fissure height of congenital ptosis patients with poor levator function under general anesthesia after frontalis suspension surgery. METHODS: We reviewed the medical charts of 79 congenital ptosis patients with poor levator function (4 mm or less) who underwent frontalis suspension with autogenous fascia lata under general anesthesia between January 2001 and December 2004. We considered lagophthalmos induced by general anesthesia as the baseline lid level, and the lid was elevated in proportion to the amount of ptosis, as assessed by photographic analysis. Photographs were taken and then analyzed using the Scion Map analysis program to measure the fissure height objectively at 1 week, 1 month, and 3 months. RESULTS: The fissure height formed by frontalis suspension surgery increased progressively and stabilized 1 month after the operation. Levator function had no significant effect on postoperative changes in fissure height. However, a more severe preoperative ptosis and a higher lagophthalmos were associated with a relatively smaller increase in adjusted lid height during the follow-up period. CONCLUSIONS: A good postoperative outcome was achieved by adjusting the lid height to a higher level in eyes with higher lagophthalmos. Especially when confronted with the dilemma of how to correct asymmetric ptosis, higher elevation of lid height in eyes with more severe preoperative ptosis and higher lagophthalmos while under (general) anesthesia should be helpful in the prediction of postoperative surgical outcomes.

Changes in Postoperative Fissure Height after Frontalis Suspension Using Autogenous Fascia Lata

PURPOSE: Most surgeries to correct congenital ptosis in children are performed with the patient under general anesthesia, which makes the postoperative outcome unpredictable. We analyzed the factors influencing postoperative changes in the fissure height of congenital ptosis patients with poor levator function under general anesthesia after frontalis suspension surgery. METHODS: We reviewed the medical charts of 79 congenital ptosis patients with poor levator function (4 mm or less) who underwent frontalis suspension with autogenous fascia lata under general anesthesia between January 2001 and December 2004. We considered lagophthalmos induced by general anesthesia as the baseline lid level, and the lid was elevated in proportion to the amount of ptosis, as assessed by photographic analysis. Photographs were taken and then analyzed using the Scion Map analysis program to measure the fissure height objectively at 1 week, 1 month, and 3 months. RESULTS: The fissure height formed by frontalis suspension surgery increased progressively and stabilized 1 month after the operation. Levator function had no significant effect on postoperative changes in fissure height. However, a more severe preoperative ptosis and a higher lagophthalmos were associated with a relatively smaller increase in adjusted lid height during the follow-up period. CONCLUSIONS: A good postoperative outcome was achieved by adjusting the lid height to a higher level in eyes with higher lagophthalmos. Especially when confronted with the dilemma of how to correct asymmetric ptosis, higher elevation of lid height in eyes with more severe preoperative ptosis and higher lagophthalmos while under (general) anesthesia should be helpful in the prediction of postoperative surgical outcomes.