bluuebunny/crossref_metadata_2025_split huggingface dataset:
Intraocular Pressure Following Extracapsular Cataract Extraction and Posterior Chamber Intraocular Lens Implantation
Authors: Kooner Karanjit S , Dulaney David D , Zimmerman Thom J 
Published: April 2021

ABSTRACT
Knowledge of the incidence of both short- and long-term elevation of intraocular pressure (IOP) after extracapsular cataract extraction (ECCE) and posterior chamber intraocular lens (PC-IOL) insertion is essential for the practicing ophthalmologist. We reviewed retrospectively the IOP data in 384 consecutive patients (506 eyes) that underwent the above procedure. A postoperative rise of 8 mm Hg above baseline or above 23 mm Hg was observed in 149 eyes (29%). Secondary glaucoma well controlled medically developed in 21 eyes (4%). Three eyes developed glaucoma after the first year postoperatively. Therefore, over the total follow-up period of 6 years, 24 eyes (4.7%) developed pseudophakic glaucoma. None, however, required laser or other surgical intervention. These results further support the prevailing view that ECCE with PC-IOL is the procedure of choice.
Failed PC-IOL Implantation in One Eye and Successful AC-IOL Implantation in the Other Eye in a Patient With Pre-existing Bilateral Uveitis
Authors: Wolter J Reimer , Anderson Charles J 
Published: April 2021

ABSTRACT
An irregular proteinaceous film populated by sessile macrophages and large giant cells was found on the surface of a posterior chamber lens implant. This had to be removed from a position with its haptics in the capsular bag 8 months after surgery because of increased uveltis. The implant had been placed at the time of extracapsular cataract extraction in a patient with pre-existing active bilateral chronic iridocyclitis of a non-granulomatous type. An anterior chamber lens implant placed after intracapsular cataract extraction in the other eye of the same patient was tolerated, and the same type of implant was used to replace the removed posterior chamber lens implant.
Clinical Interest and Problems Related to the Measurement of the Blind Spot and the Pericoecal Region by Means of Programs SAPRO, SAPPAR, and BSPOT
Authors: Funkhouser A T , Kwasniewska S , Fankhauser F 
Published: April 2021

ABSTRACT
Difficulties encountered when measuring the differential light sensitivity of the blind spot and its surroundings and the clinical interest of such measurements are reported. The determination of the differential light sensitivity across step gradients, as well as abrupt changes observed at and close to the blind spot, may pose severe problems, because both are strongly influenced by even slight fixation instability. However, other factors reported herein may be equally important. The insight gained here may be cautiously extrapolated to the difficulties (and to the efforts to overcome them) encountered when measuring other scotomata in the visual field having sensitivity distributions similar to those of the blind spot. The sensitivity distribution in the blind spot and the pericoecal region may be important in a number of disease entities, particularly in glaucoma and neurologic diseases.
Transient Lenticular Opacification Following Trabeculectomy
Authors: Pillai Sasikala , Mahmood Muneera A , Limaye Suresh R 
Published: April 2021

ABSTRACT
Permanent lens changes may occur following filtering procedures for glaucoma, most often within a few years after the surgery. We present a case in which transient lenticular opacification occurred two days after trabeculectomy without intraoperative injury to the lens. The patient regained her preoperative vision 2 weeks postoperatively. We postulate that such reversible lenticular opacities may be due to changes in lens metabolism associated with hypotony.
Tips for Local Anesthesia in Blepharoplasty
Authors: Neuhaus Russell W 
Published: April 2021

ABSTRACT
Successful local anesthesia depends on many factors, but the most important is patient confidence in the surgeon and surgical team. In addition, the proper sequencing of the delivery of the local anesthesia will allow adequate time for anesthesia and vasoconstriction. This requires that the local infiltrative anesthetic injection with Wydase and epinephrine be given prior to preparing, draping, and marking the patient.
An Evaluation of the Hyde Surgical Astigmatic Ruler
Authors: House Philip H , Chauhan Balwantray C 
Published: April 2021

ABSTRACT
The Hyde Ruler, a semi-quantitative intraoperative keratometric device, was compared with the Bausch and Lomb keratometer by taking 50 paired measurements of induced astigmatism on a model cornea. The correlation between the two instruments was 0.884, and regression of the Hyde Ruler estimates on the Bausch and Lomb keratometer readings produced a slope of 0.732 with an intercept of - 0.150 D. From the regression equation, a correction was applied to the Hyde Ruler estimates, resulting in 68.2% of the latter falling within 1.22 D or less of the Bausch and Lomb readings. We consider this accuracy to be acceptable for a semi-quantitative intraoperative keratometer, and should allow appropriate suture tensioning during cataract surgery to aid in early visual rehabilitation of the patient.
Identification of Fibrin/Fibrinogen in Glaucoma Filtration Surgery Wounds
Authors: Jampel Henry D , Morrison John , Vocci Mark , Quigley Harry 
Published: April 2021

ABSTRACT
We have localized fibrin/fibrinogen in experimental glaucoma filtration surgery wounds in non-human primates by light and transmission electron microscopy Fibrin/fibrinogen was abundant two days after surgery, but was virtually undetectable by seven days postoperatively. We have confirmed the identity of fibrin/fibrinogen on the ultrastructural level by immunoelectron microscopy employing antibodies directed against fibrinogen. Fibrin clot formation may play an important role in the wound healing response that causes glaucoma filtration surgery to fail.
Comparison of Healon and Viscoat in Cataract Extraction and Intraocular Lens Implantation
Authors: Alpar John J , Alpar Andrew J , Baca Juanita , Chapman Dale 
Published: April 2021

ABSTRACT
Sixty patients were randomly assigned to Healon* (20 patients) or Viscoat" (40 patients) treatment during extracapsular cataract extraction and intraocular lens implantation surgery. The 40 patients in the Viscoat group were randomly subdivided into two groups. In one group (20 patients!, Viscoat «vas irrigated/aspirated from the eye at the dose of surgery, whMe in the second group of 20 patients, Viscoat was left m the eye. In all Healon cases, the viscoelastic substance was removed from the eye at the end of the surgical procedure. Compared with Viscoat. Healon better facilitated the surgical procedure and appeared to be a more advantageous viscoelastic preparation. Viscoat, in many cases, caused rises in intraocular pressure in the immediate postoperative period when either removed or left in the eye at the dose of surgery
Effects of Aminoproprionitrile on Glaucoma Filter Blebs in Rabbits
Authors: Fourman Stuart 
Published: April 2021

ABSTRACT
Aminoproprionitrile was used topically in rabbits for 4 weeks following glaucoma filtration surgery in an attempt to prevent loss of the filter bleb from scarring. At 2 and 4 weeks after surgery, the outflow facility in eyes receiving aminoproprionitrile was greater than in the fellow eyes which served as controls (p<0.002 at 2 weeks and p<0.015 at 4 weeks). By 8 weeks after surgery, there was no difference in the outflow facility of the eyes in each animal. No increase in postoperative complications was attributed to aminoproprionitrile. These results suggest that aminoproprionitrile, which interferes with collagen cross-linking, may promote filter bleb formation.
Multivariate Analysis of Factors Associated With Unplanned Admission in 'Outpatient' Ophthalmic Surgery
Authors: Freeman L Neal , Schachat Andrew P , Manolio Teri A , Enger Cheryl 
Published: April 2021

ABSTRACT
We performed a case-control study of patients undergoing planned "outpatient" ophthalmic surgery in order to identify risk factors associated with the need for unplanned admission to the hospital. Factors associated with admission included time of completion of surgery, duration of operation, fentanyl dose, use of enflurane, and leukocytosis. A multiple logistic regression model found each of these variables except duration of operation to be independently associated with unplanned admission. Preoperative variables that were not associated with admission included age, present or past medical conditions, use of medications, blood pressure, hematocrit, serum sodium or potassium, and ASA Class. Identification and modification of these factors may help anticipate and/or reduce the incidence of unplanned admission to the hospital in patients undergoing planned outpatient surgery.
Patient Satisfaction in Oculoplastic Surgery
Authors: Putterman Allen M 
Published: April 2021

ABSTRACT
Patient satisfaction in oculoplastic surgery was evaluated through questionnaires sent to patients, referring physicians, and oculoplastic surgeons. Two oculoplastic surgical procedures, cosmetic blepharoplasty and acquired blepharoptosis treatment, were analyzed. One hundred forty-five patients and 85 referring physicians of the practices of five oculoplastic surgeons were questioned. Sixty-nine additional oculoplastic surgeons were also surveyed. The results of treatment were consistently emphasized as the most important factor in patient satisfaction, a finding that contrasted greatly with the decreased emphasis on the cost of treatment. This implies that patients value the quality of medical care and are willing to pay for it. The preference of patients contrasts sharply with the trend of government and third-party payers to emphasize cost containment at the possible sacrifice of quality of care.
The surveys also showed that pain and discomfort and office waiting time are more important to patient satisfaction than oculoplastic surgeons realize and that the surgeons will have to address these issues in order to improve satisfaction. Also, there is a falloff of surgeon-patient communication postoperatively which is less satisfying to patients and recognized, but not acted on, by surgeons. Therefore, more postoperative surgeon-patient communication by telephone is also likely to improve patient satisfaction.
Limbal Anesthesia for Cataract Surgery
Authors: Furuta Masashi , Toriumi Tomoko , Kashiwagi Kenji , Satoh Susumu 
Published: April 2021

ABSTRACT
We present a new technique for the administration of anesthesia in cataract surgery. The technique consists of injecting 0.5 ml of locally-acting anesthetic subconjunctivally (or sub-Tenon's) along the superior limbal border. Using this method, we performed extracapsular cataract extraction (ECCE) with and without posterior chamber intraocular lens (PC-IOL) implantation or secondary PC-IOL implantation on 176 cataract patients. Anesthesia was successfully induced in the majority of these patients and all surgeries were carried out successfully with no major complications. Voluntary eye movements remained but did not interfere with surgery. On the contrary, they helped expose certain surgical sites. This new anesthetic method for cataract surgery is simple and minimizes complications attributed to other blind anesthetic techniques.
The Effect of Topical Dexamethasone and Preoperative Beta Irradiation on a Model of Glaucoma Fistulizing Surgery in the Rabbit
Authors: Miller Michael H , Grierson Ian , Unger William G , Hitchings Roger A 
Published: April 2021

ABSTRACT
We studied the effect of topical dexamethasone (1%) and preoperative beta irradiation on a model of glaucoma fistulizing surgery in the rabbit. Intraocular pressure and gross facility of aqueous outflow following surgery were not influenced by either treatment, although blebs persisted longer in the irradiated eyes. Steroids reduced clinically observable inflammation as well as the number of inflammatory cells identifiable by microscopy. Fibroblast production temporarily slowed, and ultra-structural examination demonstrated lipid-filled vacuoles and dilated mitochondria in these eyes. Also, the scar was thinner at 24 days.
Beta irradiation delayed wound healing and the scar was thinner in the early postoperative stages, but the light microscopic appearance of the scar was unaltered at 59 days. Inflammation was more pronounced initially, with abundant fibrin in the wound. Recovery of the conjunctiva! epithelium was delayed. The delay in fibroblast recruitment and wound contraction, the thinner scar tissue, and the increased survival of the bleb are all factors that suggest that beta irradiation may be a useful adjunct to glaucoma surgery.
Long-Term Comparative Study of the Schocket and Joseph Glaucoma Tube Shunts in Monkeys
Authors: Peiffer Robert L , Popovich Karen S , Nichols Dan A 
Published: April 2021

ABSTRACT
Schocket and Joseph tube shunts were implanted in normal cynomolgus monkey eyes in order to compare the tissue response to the shunts as well as the pathways of aqueous flow associated with each. Following periods ranging from 5 to 10 months after implantation horseradish-peroxidase and/or fluorescein-labelled latex microspheres were inserted into the anterior chamber. The monkeys were then killed and the eyes studied by light, scanning, and transmission electron microscopy. In general, tissue responses to, and routes of aqueous flow associated with both shunts were similar: fibrous encapsulation of the drainage tubes and encircling bands, with aqueous flow through these fibrous capsules.
A Comparison of the Wound Integrity Produced by Various Suture Patterns in Penetrating Keratoplasty: A Cadaver Eye Model
Authors: Au Yue-Kong , Mahjoub Salah B , Hart John C 
Published: April 2021

ABSTRACT
We tested the watertightness of wound closure in penetrating keratoplasty as a function of suture pattern by performing a 7.5-mm penetrating keratoplasty on 12 human cadaver eyes using a variety of suture patterns. We then tested wound integrity by hydrostatically raising the intraocular pressure. In this cadaver eye model, we demonstrated that running sutures produced better wound closure than interrupted sutures using the same number of bites. A 16-bite running or a combined running-interrupted pattern produced more than ample watertightness in penetrating keratoplasty wound closure.
Treatment of Severe Lower Eyelid Retraction with Scleral and Free Skin Grafts and Bipedicle Orbicularis Flap
Authors: Hurwitz Jeffrey J , Archer Kathleen F , Gruss Joseph S 
Published: April 2021

ABSTRACT
Surgical repair of lamellar shortening must treat the anterior and posterior shortening, plus the scarring between Mueller's muscle, capsulopalpebral fascia, and periosteum. We describe a repair method in which a full-thickness, free skin graft is used to correct the anterior lamellar defect, and a homologous scleral graft is used to correct the posterior defect. Vascular support for the two free grafts is provided by a bipedicular orbicularis muscle flap.
The Aponeurotic Approach to Congenital Ptosis
Authors: Jordan David R , Anderson Richard L 
Published: April 2021

ABSTRACT
Using a surgical technique directed at the levator aponeurosi, we successfully corrected 228 cases of congenital ptosis. The advantages of this approach are: normal anatomic planes and structures of the eyelid are maintained; basic and reflex tear secretion, goblet cells, or meibomian glands remain undisturbed, allowing maintenance of the three-layered tear film; any aponeurotic defects may be explored and repaired relatively easily; all elevating structures are preserved (aponeurosis rather than muscular lev at or is removed, Mueller's muscle is left intact, Whitnall's ligament is not violated); posterior sutures, which may irritate the cornea, are avoided; no tarsus or conjunctiva are removed.
A Simple Modified SRK Formula for Severely Myopic Eyes
Authors: Kora Yukiko , Suzuki Youichi , Inatomi Makoto , Ozawa Tetsuma , Fukado Yoshinao 
Published: April 2021

ABSTRACT
We describe our modification of the most accurate intraocular lens power calculation formula currently used, the SRK formula, to improve the accuracy with which it can be used to calculate the power of IOLs that are implanted in severely myopic eyes, especially in those with exceptional axial length. This modified formula, which we call the L-SRK1 is I = A - 2.5 L - 0.9 K - 1.69R - 1.69 (where I = the actual implanted IOL power; A = the A-constant; L = the axial length; K = the average keratometer reading; and R = the predicted postoperative refraction). The results achieved using this modified formula demonstrate its superior accuracy in calculating lens powers for severely myopic eyes.
Intraocular Lens Implantation Following Extracapsular Cataract Extraction in Uveitis
Authors: Chung Yu-Mei , Yeh Tse-Shiang 
Published: April 2021

ABSTRACT
We reviewed the results of intraocular lens OO L) implantation in the posterior chamber following extracapsular cataract extraction (ECCE) in 70 cataractous eyes with various types of endogenous uveitis, predominantly acute anterior uveitis, Fiichs' heterochromic cyclitis, Harada's disease, and Behcet's disease. During an average of 23.1 months' follow-up (range, 13 to 48 months) there was no exacerbation of the preexisting uveitis in any of the eyes. Postoperative visual acuity in all eyes was better than it was preoperatively, although further procedures were required in some eyes: a pars plana vitrectomy in one, a surgical peripheral iridectomy in one, and Nd: YAG laser capsulólo m y in 10. Our results suggest that selected uveitis patients can tolerate and benefit from an ECCE and IOL implantation.
Argon Laser Suturotomy: A Technique for the Correction of Surgically Induced Astigmatism
Authors: Sachdev Mahipal Singh , Kumar Harsh , Dada Vijay Kumar , Mehta Manoj Rai , Jain Arun Kumar 
Published: April 2021

ABSTRACT
We prospectively studied 40 eyes with intraocular lenses and astigmatism of 4 or more diopters to evaluate the efficacy and safety of argon laser suture ablation as contrasted with surgical suture removal. Two groups of 10 eyes underwent argon laser sut u r oto m y (ALS) 4 and 6 weeks, respectively, after surgery. Sutures were removed surgically in a third group of 10 eyes 6 weeks after surgery. The final group of 10 eyes served as controls. Serial keratometry and refraction demonstrated that ALS was as effective as surgical suture removal in reducing postoperative astigmatism, and complications associated with the procedure were negligible.
The Long-Term Effect on Intraocular Pressure of a Procedure Combining Trabeculectomy and Cataract Surgery, as Compared With Trabeculectomy Alone
Authors: Naveh N , Kottass R , Glovinsky J , Blumenthal M , Bar-Sever D 
Published: April 2021

ABSTRACT
The long-term reduction of intraocular pressure OOP) resulting from a procedure combining extracapsular cataract extraction and posterior chamber lens implantation with trabeculectomy was compared retrospectively with the IOP-lowering effect of trabeculectomy alone. Forty patients who underwent the combined procedure and 38 who underwent trabeculectomy alone had been followed for an average of 22 ±7 months.
Both these surgical procedures significantly reduced IOP, but after a year or more, pressure levels were significantly lower in the trabeculectomy group than they were in the combined group: 12.8 ±4.2 mm Hg, and 16.5 ±5.6 mm Hg, respectively, at 18 months. Also, the mean postoperative fall in IOP was greater in the "filtered" eyes than it was in the combined group (9.8 ±4.6 mm Hg and 12.1 ±5.2 mm Hg, respectively, at 18 months). Finally, the number of medications required to maintain controlled IOP in the combined group was greater (and resumed preoperative values at 2 years) than it was in the trabeculectomy group (62.5% of the filtered eyes remained controlled unaided).
Tissue Plasminogen Activator and Penetrating Keratoplasty
Authors: Heidemann David G , Williams George A , Blumenkranz Mark S 
Published: April 2021

ABSTRACT
We report a patient who developed severe intraocular fibrin formation following penetrating keratoplasty and vitrectomy surgery. The fibrin response worsened despite aggressive treatment with topical steroids. On the second postoperative day, 25 ^g of intracameral tissue plasminogen activator was administered, resulting in rapid resolution of the fibrin response. The graft remained clear. We believe tissue plasminogen activator may be useful in selected cases of severe, recalcitrant postkeratoplasy fibrin formation.
Slit Lamp Reformation of the Anterior Chamber Following Trabeculectomy
Authors: Gerber Steve L , Cantor Louis B 
Published: April 2021

ABSTRACT
Out of 50 consecutive trabeculectomies performed over a 10-month period, 13 flat or shallow anterior chambers were reformed immediately following surgery a total of 19 times without complication at the slit lamp, using hyaluronic acid. Three months after surgery, there was no significant difference between the reformed and nonreformed eyes in terms of intraocular pressure or visual acuity change. We conclude that reformation at the slit lamp using hyaluronic acid is a safe, effective means of restoring anterior chamber anatomy following trabeculectomy.
The Simcoe Cannula as an Aid to In-the-Bag Placement of Intraocular Lenses
Authors: Oyarzun Mario 
Published: April 2021

ABSTRACT
I describe using the Simcoe Irrigation-Aspiration Cannula as an aid to "in-the-bag" placement of a posterior chamber intraocular lens. The cannula facilitates implanting the inferior as well as the superior loop of the lens in the bag, even when there is positive vitreous pressure.
Extracapsular Cataract and Lens Implant Surgery in Developing Countries: Keeping It Simple
Authors: Spencer Martin F 
Published: April 2021

ABSTRACT
Extracapsular cataract extraction and posterior chamber lens implantation would be the ideal method of rehabilitating the cataract blind of the developing world. However, these procedures usually have been considered too complex, time-consuming, and "high tech" to be used in these areas of the world. We argue that, in the context of an appropriate support program, they can be performed rapidly and safely using a few simple, manual instruments.
Characteristics and Behavior of Eyelid Carcinoma (Basal Cell, Squamous Cell, Sebaceous Gland, and Malignant Melanoma)
Authors: Loeffler Michael , Hornblass Albert 
Published: April 2021

ABSTRACT
Malignant tumors of the eyelid pose a serious threat because of their proximity to the globe, brain, and paranasal sinuses. We review the features of four common skin carcinomas involving the eyelid skin. Particular emphasis is given to their clinical presentation and to biologic behavior. Clinicians are encouraged to be aware of the clinical manifestations of these tumors, since early recognition and treatment result in the most cosmetically and functionally satisfactory results. An approach for rational treatment is presented.
Increase of Neuroretinal Rim Area After Surgical Intraocular Pressure Reduction
Authors: Funk Jens 
Published: April 2021

ABSTRACT
The Optic Nerve Head Analyzer was used to measure the optic disc structure of 18 eyes (13 adult glaucoma patients) before and after surgical intraocular pressure reduction. Neuroretinal rim area markedly increased (from +0.15 mm2 to +0.45 mm2) in eight eyes, but changed either very little ( < ± 0.1 mm2) or not at all in the remaining 10 eyes. The mean increase was from 0.75 ± 0.26 mm2 to 0.92 ± 0.36 mm2. The increased neuroretinal rim area found at this time remained in all eyes reexamined 1 to 3 years after surgery. Our data support previous findings that glaucomatous disc cupping may be reversed even in adult eyes, perhaps as the result of adequate pressure reduction.