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Papers by Gary Wortz
Clinical Ophthalmology, 2020
To evaluate real-world outcomes of astigmatism management with femtosecond laser arcuate incision... more To evaluate real-world outcomes of astigmatism management with femtosecond laser arcuate incisions in patients with low corneal astigmatism (<1.0 D) using a novel formula for arcuate incision calculation compared to outcomes after conventional cataract surgery without surgical management of astigmatism. Patients and Methods: The Wörtz-Gupta™ Formula (available at www.lricalc.com) was used to calculate femtosecond laser arcuate parameters for 224 patients with <1 D of corneal astigmatism who underwent cataract surgery; lens power was determined with the Barrett Universal II formula. Uncorrected distance visual acuity (UCDVA) and refractive astigmatism measurements were obtained, with an average follow-up of 4 weeks. Results: The average preoperative cylinder was similar (0.61 D in the femtosecond group [n=124] and 0.57 D in the conventional group [n=100] (P>0.05)). More patients had ≤0.5 D of postoperative corneal astigmatism in the femtosecond group (n=110/124, 89%) than in the conventional group (n=71/100, 71%), respectively (P=0.001). The mean absolute postoperative refractive astigmatism was higher in the conventional surgery group than in the femtosecond group (0.43 ± 0.4 D vs 0.26 ± 0.28 D); these differences were statistically significant (P<0.001). The percentage of patients with UCDVA of 20/20 or better vision was higher in the femtosecond group (62%) than the conventional group (48%) (P=0.025). Conclusion: Using the femtosecond laser for arcuate incisions in combination with a novel nomogram can provide excellent anatomic and refractive outcomes in patients with lower levels of preoperative astigmatism at the time of cataract surgery.
The American surgeon, 2004
During peritonitis, bacterial adherence is the initial step in a series of events that include mu... more During peritonitis, bacterial adherence is the initial step in a series of events that include mucosal infection, bacterial translocation, organ dysfunction, and death. Adherent Escherichia coli levels increase in response to stress. This study was designed to assess the adherence of E. coli to the cecal mucosa after cecal ligation and puncture (CLP) of increasing severity and to determine whether a relationship exists between adherence of bacteria and mortality. Sham surgery, sterile peritonitis (thioglycollate administration), lethal CLP (18-gauge double-puncture), and nonlethal CLP (23-gauge single-puncture) were performed on Swiss Webster mice and compared with normal mice or before CLP (time 0). Specimens of bowel tissue were harvested, and serial log dilutions of homogenized specimens or bowel contents were plated and cultured on media selective for determination of individual bacterial species. Low levels of E. coli and Proteus mirabilis adhered to the mucosa of unmanipulated...
The American surgeon, 2004
During peritonitis, bacterial adherence is the initial step in a series of events that include mu... more During peritonitis, bacterial adherence is the initial step in a series of events that include mucosal infection, bacterial translocation, organ dysfunction, and death. Adherent Escherichia coli levels increase in response to stress. This study was designed to assess the adherence of E. coli to the cecal mucosa after cecal ligation and puncture (CLP) of increasing severity and to determine whether a relationship exists between adherence of bacteria and mortality. Sham surgery, sterile peritonitis (thioglycollate administration), lethal CLP (18-gauge double-puncture), and nonlethal CLP (23-gauge single-puncture) were performed on Swiss Webster mice and compared with normal mice or before CLP (time 0). Specimens of bowel tissue were harvested, and serial log dilutions of homogenized specimens or bowel contents were plated and cultured on media selective for determination of individual bacterial species. Low levels of E. coli and Proteus mirabilis adhered to the mucosa of unmanipulated...
Clinical Ophthalmology, 2020
To evaluate real-world outcomes of astigmatism management with femtosecond laser arcuate incision... more To evaluate real-world outcomes of astigmatism management with femtosecond laser arcuate incisions in patients with low corneal astigmatism (<1.0 D) using a novel formula for arcuate incision calculation compared to outcomes after conventional cataract surgery without surgical management of astigmatism. Patients and Methods: The Wörtz-Gupta™ Formula (available at www.lricalc.com) was used to calculate femtosecond laser arcuate parameters for 224 patients with <1 D of corneal astigmatism who underwent cataract surgery; lens power was determined with the Barrett Universal II formula. Uncorrected distance visual acuity (UCDVA) and refractive astigmatism measurements were obtained, with an average follow-up of 4 weeks. Results: The average preoperative cylinder was similar (0.61 D in the femtosecond group [n=124] and 0.57 D in the conventional group [n=100] (P>0.05)). More patients had ≤0.5 D of postoperative corneal astigmatism in the femtosecond group (n=110/124, 89%) than in the conventional group (n=71/100, 71%), respectively (P=0.001). The mean absolute postoperative refractive astigmatism was higher in the conventional surgery group than in the femtosecond group (0.43 ± 0.4 D vs 0.26 ± 0.28 D); these differences were statistically significant (P<0.001). The percentage of patients with UCDVA of 20/20 or better vision was higher in the femtosecond group (62%) than the conventional group (48%) (P=0.025). Conclusion: Using the femtosecond laser for arcuate incisions in combination with a novel nomogram can provide excellent anatomic and refractive outcomes in patients with lower levels of preoperative astigmatism at the time of cataract surgery.
The American surgeon, 2004
During peritonitis, bacterial adherence is the initial step in a series of events that include mu... more During peritonitis, bacterial adherence is the initial step in a series of events that include mucosal infection, bacterial translocation, organ dysfunction, and death. Adherent Escherichia coli levels increase in response to stress. This study was designed to assess the adherence of E. coli to the cecal mucosa after cecal ligation and puncture (CLP) of increasing severity and to determine whether a relationship exists between adherence of bacteria and mortality. Sham surgery, sterile peritonitis (thioglycollate administration), lethal CLP (18-gauge double-puncture), and nonlethal CLP (23-gauge single-puncture) were performed on Swiss Webster mice and compared with normal mice or before CLP (time 0). Specimens of bowel tissue were harvested, and serial log dilutions of homogenized specimens or bowel contents were plated and cultured on media selective for determination of individual bacterial species. Low levels of E. coli and Proteus mirabilis adhered to the mucosa of unmanipulated...
The American surgeon, 2004
During peritonitis, bacterial adherence is the initial step in a series of events that include mu... more During peritonitis, bacterial adherence is the initial step in a series of events that include mucosal infection, bacterial translocation, organ dysfunction, and death. Adherent Escherichia coli levels increase in response to stress. This study was designed to assess the adherence of E. coli to the cecal mucosa after cecal ligation and puncture (CLP) of increasing severity and to determine whether a relationship exists between adherence of bacteria and mortality. Sham surgery, sterile peritonitis (thioglycollate administration), lethal CLP (18-gauge double-puncture), and nonlethal CLP (23-gauge single-puncture) were performed on Swiss Webster mice and compared with normal mice or before CLP (time 0). Specimens of bowel tissue were harvested, and serial log dilutions of homogenized specimens or bowel contents were plated and cultured on media selective for determination of individual bacterial species. Low levels of E. coli and Proteus mirabilis adhered to the mucosa of unmanipulated...