Postoperative visual recovery following surgical treatment of craniopharygiomas

Introduction. Craniopharyngiomas are rare tumors which are typically focused in the sellar and suprasellar region. Secondary to mass effect, these tumors commonly mediate neurologic, endocrinologic or visual functions. The purpose of this study was to investigate the pre and postoperative visual acuity in patients with a craniopharyngioma in the area of the optic chiasm. Material and Methods. This retrospective study included 42 patients with a craniopharyngioma demonstrated by computerized tomography or magnetic resonance imaging. The visual status was analyzed both before and after surgery (10 days, one month and six months after surgery). Results. Progressive loss of visual acuity was a typical initial eye symptom. Postoperatively, improvement in visual acuity was seen in 47.2% of eyes. Normal vision was attained in the majority of eyes (from 27% preoperatively to 40% six months after surgery). The percentage of eyes with heavily reduced visual acuity decreased as well (from 38% preoperatively to 11% six months after surgery). Visual acuity improved at least in one eye in 36.58% of patients, and 28% of patients achieved normal visual acuity in both eyes, six months after surgery. The improvement of 0.5 and better at least in one eye was observed in 33% of patients. The majority of eyes showed immediate improvement after surgical decompression, during first ten postoperative days. Conclusions. The majority of patients with craniopharyngioma show a significant improvement of visual function, particularly in the first ten postoperative days.

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Postoperative visual recovery following surgical treatment of suprasellar meningiomas

Medicinski pregled ◽

10.2298/mpns1208309g ◽

2012 ◽

Vol 65 (7-8) ◽

pp. 309-314

Author(s):

Desanka Grkovic ◽

Tatjana Bedov ◽

Vladimir Canadanovic ◽

Nikola Babic ◽

Sava Barisic

Keyword(s):

Visual Acuity ◽

Optic Chiasm ◽

Lower Number ◽

Visual Recovery ◽

Nerve Fibres ◽

Mechanical Pressure ◽

Irreversible Damage ◽

Postoperative Visual Acuity ◽

Visual Status ◽

Ophthalmologic Examination

Introduction. The purpose of this study was to investigate pre- and postoperative visual acuity in patients with meningioma in the area of optic chiasm. Material and Methods. This retrospective study included 43 patients with meningioma in the area of optic chiasm, who had been found to have impaired visual function according to anamnestic data and neuro-ophthalmologic examination which excluded the presence of any other eye diseases. The visual status was analyzed both preoperatively and postoperatively, i.e. 10 days, one month and six months after surgery. Results. An improvement in visual acuity was recorded in 50% of the examined eyes (68.42% of patients), the most expressed changes being in terms of higher number of the eyes with normalized visual acuity and lower number of the eyes with severely reduced visual acuity after surgery. These changes were particularly prominent immediately after surgery, during the first ten days. Conclusion. The recovery of visual acuity after decompression in the area of optic chiasm is possible in cases where mechanical pressure on the nerve fibres and resulting fibre ischemia have not lasted long enough to lead to their irreversible damage.

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Binocular interactions and visual acuity loss in esotropic cats

Canadian Journal of Physiology and Pharmacology ◽

10.1139/y95-195 ◽

1995 ◽

Vol 73 (9) ◽

pp. 1398-1405

Author(s):

M. Ptito ◽

P. Bouchard ◽

F. Lepore ◽

S. Quessy ◽

M. Di Stefano ◽

...

Keyword(s):

Visual Acuity ◽

Rectus Muscle ◽

Optic Chiasm ◽

Group 4 ◽

Lateral Rectus Muscle ◽

Spatial Frequencies ◽

Discrimination Procedure ◽

Before And After ◽

Group 2 ◽

Adult Cats

Visual acuity was measured behaviorally in various groups of cats by using a two-choice discrimination procedure. Cats in group 1 were rendered strabismic soon after birth by sectioning the tendon of the lateral rectus muscle (unilateral esotropia); at adulthood, their visual acuity (VA) was evaluated, after which the optic chiasm was sectioned and VA reassessed. Cats in group 2 were not only tenotomized but also chiasmatomized neonatally, while cats in group 3 underwent a neonatal section of the optic chiasm only. VA was measured at adulthood in the two latter groups. Group 4 consisted of adult cats whose VA was evaluated before and after an optic chiasm section. Stimuli consisted of square-wave gratings of various spatial frequencies. Results showed that in normal cats, the average threshold values under monocular viewing were identical for each eye (4.76 cycles/degree); however, following optic chiasm section, monocular VA was reduced to 1.23 cycles/degree. VA in early optic chiasm section cats was lower than that of the normal cats but higher than that of late-lesioned animals (2.33 cycles/degree). In strabismic cats, mean VA was 1.25 cycles/degree for the deviated eye and 2.8 cycles/degree for the normal eye. Following the optic chiasm section at adulthood, VA was lower not only for the deviated eye (<0.17 cycles/degree) but also for the normal eye (1.14 cycles/degree). Similar results were found when both the deviation and chiasmatomy were performed neonatally. The elimination of interocular interactions through chiasm transection failed to improve VA in the strabismic eye.Key words: visual acuity, esotropia, optic chiasm, corpus callosum, cats, development, behavior.

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CLINICAL CHARACTERISTICS AND RESULTS OF CATARACT SURGERY IN THE SMALL PUPIL EYE BY PHACOEMUSIFICATION

Journal of Medicine and Pharmacy ◽

10.34071/jmp.2018.2.13 ◽

2018 ◽

pp. 79-82

Author(s):

Van Minh Pham ◽

Van Nam Phan ◽

Thi Thu Nguyen

Keyword(s):

Visual Acuity ◽

Cataract Surgery ◽

Clinical Characteristics ◽

Low Vision ◽

Sample Selection ◽

Posterior Chamber ◽

Good Visual Acuity ◽

Before And After ◽

Grade Ii ◽

Small Pupil

Objectives: To investigate the clinical characteristics of cataract patients with small pupils and to evaluate the result of cataract surgery on the eye have small pupils by phacotechnique. Subjects and methods: Descriptive study, prospective, uncontrolled interventions. Sample selection. The sample size of 70 patients with 70 eyes of cataracts with small pupils was treated by phaco technique and intraocular lens implant within posterior chamber. Follow up to 3 months. Results: 70 eyes, the percentage of men and women was not different from 54.2% (38 male) compared to 45.8% (32 female). The mean age was 80 ± 8.74, from 58 to 99 years. The disease was mainly found in the age group over 70 years old with over 80% (51.5%). Visual acuity before surgery was very poor under 3m CF (count finger) for 68.6% (48/70). Visual acuity over 1/10 was only a small amount with 2.8% (2 eyes). Pseudoexfoliation was the most common reason complications of mydriasis with 32/70 eyes (45.7%) and 22/70 eyes (31.4%) for age. The preoperative pupilarysizewas mostly small with 63/70 eyes (90.0%), non-dilated pupils (7/70 eyes) (10.0%). Average pupil size was 3.34 mm (2 - 4mm). Iris condition: iris atrophy 20/10 eyes (28.6%), iris synechiae 11/10 (15.7%), irregular iris muscle with 51, 4% and good iris muscle accounted for 48.6%. Grade of cataract: Grade III: 31/70 eyes (44.3%), Grade IV: 32/70 eyes (45.7%), Grade II: 5/70 eyes (7.1%) and V:2/70 eyes (2.9%). Pupil expander technique: OVD injection with 42/70 eyes (60%), using iris hook with 23/70 eyes (32.9%). Pupillary size before and after intervention has changed from 3.7mm to 4.48mm. Conclusions: Iris expander techniques have been shown to have good dilated pupils: 60.0% OVD injection, iris hook was 32.9%, other methods 7.1% One-week visibility of good visual acuity was higher than that of postoperative one day (12.2%) and increased at 1 month and 3 months (20.0%). Very good visual acuity was not available and low vision group was 1.4% after 3 months. Key words: cataract surgery; phacoemusification, small pupil

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STUDY CLINICAL FEATURE AND RESULT OF TREATMENT PHACOMORPHIC GLAUCOMA

Journal of Medicine and Pharmacy ◽

10.34071/jmp.2015.1.9 ◽

2015 ◽

pp. 71-75

Author(s):

Van Nam Phan ◽

Ba Ken Tran

Keyword(s):

Visual Acuity ◽

Intraocular Pressure ◽

Statistical Significance ◽

Corneal Edema ◽

Clinical Feature ◽

Anterior Chamber Angle ◽

Male Population ◽

Significant Difference ◽

Operative Complications ◽

Before And After

Purpose: Study clinical feature of phacomorphic glaucoma. To evaluate the result of treatment phacomorphic glaucoma. Method: The retrospective, interventional study on 36 cases with phacomorphic glaucoma who underwent treated at Hue Central Hospital from 6/2010 to 6/2011. Standard of research: visual, IOP, before and after surgery, accompanying lesions and post-operative complications. The surgery is considered successful when postoperative IOP less than 21 mmHg. Results: Age 50-59 presented 30.5 percent, ≥ 60 presented 91.7 percent. There was a slight female preponderance (66.7%) compared to the male population (33.3%) which implies a statistically marginally significant difference. However there was no statistical significance difference when compared by the two subgroups. Patient in country presented 61,1% and city presented 38,9%. The duration between the onset of pain and surgery from 0 to < 5 days (77.8%), from 6 to 10 (16.7%) and >10 days presented 5.5%. The preoperative intraocular pressure 35 to 45mmHg (47.2%), 46-55 (30.6%), 56-65 (13.9%) and more than 65 presented 8.3%. The visual acuity preoperation less than 1metre count finger (94.5%), less than 3 metre count finger presented 5.5%. Close anterior chamber angle presented 80.6% and shallow was presented 19.4%. Corneal edema presented 100%, iritis presented 94.4%, dilated pupil larger 5mm presented 83.3%, Synchynea iris and cataract presented 72.2%. ECCE, implantation IOL combined trabeculectomy presented 11.1%, Phaco, implantation IOL combined trabeculectomy presented 69,5%, ECCE implantation IOL presented 5.6%, Phaco, implantation IOL presented 13.8%. Postoperative visual acuity from 1/10 to 5/10 presented 72.2%, no case have VA larger than 5/10. Postoperative 3 months VA 1/10 to 5/10 presented 72.2%, larger VA 5/10 presented 8.3%. Postoperative 3 months intraocular pressure ≤ 21mmHg presented 91.7%, 22 to 24mmHg presented 8.3%, no case have IOP ≥25mmHg. Postoperative edema presented 58.3%, iritis presented 58.3%. Key words: phacomorphic Glaucoma

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Ophthalmological findings in children with non-syndromic craniosynostosis: preoperatively and postoperatively up to 12 months after surgery

BMJ Open Ophthalmology ◽

10.1136/bmjophth-2020-000677 ◽

2021 ◽

Vol 6 (1) ◽

pp. e000677

Author(s):

Evangelia Ntoula ◽

Daniel Nowinski ◽

Gerd Holmstrom ◽

Eva Larsson

Keyword(s):

Visual Acuity ◽

University Hospital ◽

Cranial Sutures ◽

Sagittal Craniosynostosis ◽

Syndromic Craniosynostosis ◽

Disc Oedema ◽

Before And After ◽

Congenital Condition ◽

Skull Deformity

AimsCraniosynostosis is a congenital condition characterised by premature fusion of one or more cranial sutures. The aim of this study was to analyse ophthalmic function before and after cranial surgery, in children with various types of non-syndromic craniosynostosis.MethodsChildren referred to Uppsala University Hospital for surgery of non-syndromic craniosynostosis were examined preoperatively. Visual acuity was measured with Preferential Looking tests or observation of fixation and following. Strabismus and eye motility were noted. Refraction was measured in cycloplegia and funduscopy was performed. Follow-up examinations were performed 6–12 months postoperatively at the children’s local hospitals.ResultsOne hundred twenty-two children with mean age 6.2 months were examined preoperatively. Refractive values were similar between the different subtypes of craniosynostosis, except for astigmatism anisometropia which was more common in unicoronal craniosynostosis. Strabismus was found in seven children, of which four had unicoronal craniosynostosis.Postoperatively, 113 children were examined, at mean age 15.9 months. The refractive values decreased, except for astigmatism and anisometropia in unicoronal craniosynostosis. Strabismus remained in unicoronal craniosynostosis. Two new cases with strabismus developed in unicoronal craniosynostosis and one in metopic, all operated with fronto-orbital techniques. No child had disc oedema or pale discs preoperatively or postoperatively.ConclusionOphthalmic dysfunctions were not frequent in children with sagittal craniosynostosis and preoperative ophthalmological evaluation may not be imperative. Children with unicoronal craniosynostosis had the highest prevalence of strabismus and anisometropia. Fronto-orbital techniques used to address skull deformity may be related to a higher prevalence of strabismus postoperatively.

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Regional Gas Exchange Measured by 129 Xe Magnetic Resonance Imaging Before and After Combination Bronchodilators Treatment in Chronic Obstructive Pulmonary Disease

Journal of Magnetic Resonance Imaging ◽

10.1002/jmri.27662 ◽

2021 ◽

Author(s):

David G. Mummy ◽

Erika M. Coleman ◽

Ziyi Wang ◽

Elianna A. Bier ◽

Junlan Lu ◽

...

Keyword(s):

Magnetic Resonance Imaging ◽

Chronic Obstructive Pulmonary Disease ◽

Magnetic Resonance ◽

Gas Exchange ◽

Pulmonary Disease ◽

Chronic Obstructive ◽

Resonance Imaging ◽

Obstructive Pulmonary Disease ◽

Before And After

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“Yokoyama procedure” efficacy on non-highly myopic patients with acquired esotropia and hypotropia

European Journal of Ophthalmology ◽

10.1177/1120672119850684 ◽

2019 ◽

Vol 30 (4) ◽

pp. 676-679

Author(s):

Massimiliano Serafino ◽

Matteo Scaramuzzi ◽

Edoardo Villani ◽

Paolo Nucci

Keyword(s):

Magnetic Resonance Imaging ◽

Magnetic Resonance ◽

Axial Length ◽

Lateral Rectus ◽

Inclusion Criteria ◽

Resonance Imaging ◽

Spherical Equivalent Refraction ◽

Before And After ◽

Weighted Magnetic Resonance Imaging ◽

The Mean

Objective: To assess the efficacy of “Yokoyama Procedure,” on non-highly myopic patients with acquired esotropia and hypotropia. Methods: The study involved 10 eyes of 5 patients with eso-hypotropia. Inclusion criteria were acquired esotropic-hypotropic strabismus with lateral rectus inferior displacement and superior rectus nasal displacement confirmed by magnetic resonance imaging, refractive errors between ±6 D, and axial length < 27 mm. Range of full duction movements and maximum angles of abduction-sursumduction was measured in each eye before and after surgery. All patients underwent T1- and T2-weighted magnetic resonance imaging. The surgery was aimed at creating a junction between the muscle bellies of the superior and lateral rectus muscles. This junction was made approximately 14 mm behind the insertions using a non-absorbable mersilene 5/0 suture (Yokoyama procedure). Results: Mean patient age was 64.8 ± 4.8 years. The mean globe axial length was 25.4 ± 0.76 mm and a mean corresponding spherical equivalent refraction of −3.7 ± 1.7 D was observed. Eight eyes on 10 had mild limitation in abduction, while the remaining 2 had no limitation. Three out of 10 eyes showed a moderate limited sursumduction, 5 eyes were categorized as mild, and the remaining 2 had no limitation. No evident post-operative limitation was present in any eye, in both abduction and sursumduction (p < 0.01). Pre-operative esotropia and hypotropia were, respectively, 32 ± 11 prismatic diopters and 25 ± 5 prismatic diopters, and they were significantly reduced after surgery as 9 ± 1.7 prismatic diopters and 6 ±1 prismatic diopters (p = 0.043), respectively. Conclusion: Yokoyama procedure is an effective, fast, reversible procedure to face eso-hypotropic acquired strabismus, even in patients with a clear magnetic resonance imaging displacement of superior and lateral rectus muscles, and absence of globe dislocation and of elevated myopia.

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