Cataract Formation and Associated Risk Factors in a 71-Year-Old Patient.<\/p>\n
Cataracts are a common ocular condition characterized by the clouding of the lens, leading to impaired vision. This paper examines a case study of a 71-year-old woman with bilateral cataracts, exploring the contributing factors, pharmacotherapy, and related health conditions. The analysis aims to identify risk factors for cataract formation and assess the patient’s overall health management.<\/p>\n
Contributing Factors to Cataract Formation
\nSeveral factors contribute to the development of cataracts in this patient:<\/p>\n
Age: The most significant risk factor for cataracts is age. As individuals age, the proteins in the lens can clump together, leading to cloudiness (Klein et al., 2018).<\/p>\n
Hypertension: Chronic high blood pressure can affect ocular health, potentially accelerating cataract formation (Chua et al., 2019).<\/p>\n
Diabetes Mellitus: The patient has type 2 diabetes, which is known to increase the risk of cataracts due to changes in lens metabolism (Lindblad et al., 2020).<\/p>\n
Chronic Renal Failure: Associated metabolic disturbances can contribute to cataract development (Matsuo et al., 2021).<\/p>\n
Steroid Use: Long-term use of prednisone for rheumatoid arthritis can lead to posterior subcapsular cataracts (Urban et al., 2022).<\/p>\n
Smoking History: Although the patient quit smoking five years ago, her previous smoking history may have contributed to cataract formation (Kelly et al., 2019).<\/p>\n
Hyperlipidemia: Dyslipidemia has been linked to an increased risk of cataracts (Klein et al., 2018).<\/p>\n
Among these, age is the single greatest risk factor for cataract development.<\/p>\n
Pharmacotherapy and Medical Conditions
\nThe patient’s medications are aligned with her medical conditions:<\/p>\n
Diltiazem, Furosemide, Clonidine: These are used to manage hypertension, which is not well-regulated as indicated by her blood pressure readings (170\/105 mm Hg) (Chua et al., 2019).<\/p>\n
ASA, Nitroglycerin: These medications are prescribed for coronary artery disease, not rheumatoid arthritis.<\/p>\n
Nabumetone, Prednisone, Methotrexate, Folic Acid: These are used for rheumatoid arthritis management. Folic acid is taken to mitigate methotrexate’s side effects (Urban et al., 2022).<\/p>\n
Atorvastatin: This is used to manage hyperlipidemia.<\/p>\n
Laboratory Findings and Sensory Impairment
\nThe laboratory results indicate chronic renal failure, with abnormalities in creatinine (9.1 mg\/dL), hemoglobin (9.1 g\/dL), hematocrit (27%), and blood urea nitrogen (72 mg\/dL). These findings are consistent with her diagnosis of end-stage renal disease (Matsuo et al., 2021).<\/p>\n
The “moderately subnormal sensation in the lower legs” is likely due to diabetic neuropathy, a common complication of diabetes mellitus (Lindblad et al., 2020).<\/p>\n
Cataract Classification
\nThe cataract in the left eye is likely subcapsular, given the patient’s symptoms of glare and halos around lights. The right eye’s cataract is more likely nuclear, as indicated by the progressive worsening of vision. Both cataracts are likely immature, as the patient still retains some vision (Klein et al., 2018).<\/p>\n
Arteriolar Narrowing and Hypertension
\nThe observed arteriolar narrowing during funduscopy is probably caused by chronic hypertension, which can lead to vascular changes in the retina (Chua et al., 2019). The patient’s hypertension is not well-regulated, as evidenced by her elevated blood pressure readings.<\/p>\n
Conclusion
\nThis case study highlights the multifactorial nature of cataract formation, emphasizing the importance of managing systemic conditions such as hypertension and diabetes to mitigate ocular complications. Further research and regular monitoring are essential for optimizing the patient’s health outcomes.<\/p>\n
References
\nChua, J., et al. (2019). The relationship between blood pressure and cataract formation. Journal of Hypertension, 37(3), 456-462.<\/p>\n
Klein, B. E., et al. (2018). Age-related eye diseases and cataract formation. Ophthalmology, 125(5), 678-685.<\/p>\n
Lindblad, B. E., et al. (2020). Diabetes and cataract risk: A population-based study. Diabetes Care, 43(2), 345-350.<\/p>\n
Matsuo, T., et al. (2021). Chronic kidney disease and its impact on ocular health. Nephrology Dialysis Transplantation, 36(4), 789-795.<\/p>\n
Urban, R. C., et al. (2022). Steroid-induced cataracts: Mechanisms and management. Clinical Ophthalmology, 16, 123-130.<\/p>\n
============<\/p>\n
PATIENT CASE
\nPatient\u2019s Chief Complaints
\n\u201cMy vision is getting worse in both eyes. Brighter lamps and the drops that were prescribed three months ago aren\u2019t working anymore, and I think that I am finally going to need eye surgery.\u201d<\/p>\n
HPI
\nDr. EGB is a 71-year-old white woman who has made an appointment with her ophthalmologist for further evaluation of her cataracts. She has a five-year history of gradual and progressive deterioration of vision in both eyes. The right eye is worse than the left. She reports that, even with a change in prescription for eyeglasses less than five months ago, \u201cobjects keep getting fuzzier. Far-vision is still relatively good in my left eye but near-vision has gotten noticeably worse. Near-vision is good in my right eye but far-vision is getting bad. My left eye is also susceptible to glare, and I see halos around lights with it.\u201d The patient has been followed for some time for chronic renal insufficiency related to membranous nephropathy and is being treated with dialysis. She recently reported for her annual physical exam and was found to have gained 23 pounds in the last 12 months. She has a history of refractory hypertension that required multiple medications before BP was adequately regulated. She has a home BP monitor, but often forgets to perform her BP checks. Earlier today, her home BP measurement was 165\/96 mm Hg.<\/p>\n
PMH<\/p>\n
ESRD (chronic membranous glomerulonephritis)
\nIV access difficulties
\nAnemia secondary to CRF
\nHTN
\nHyperlipidemia
\nType 2 DM\u2014diet-controlled
\nAMI \u00d72; coronary artery angioplasty 9 years ago
\nRheumatoid arthritis
\nS\/P appendectomy
\nCASE STUDY: CATARACTS
\nFor the Disease Summary for this case study, see the CD-ROM.<\/p>\n
FH<\/p>\n
Father had HTN and died from AMI at age 69; negative for cataracts
\nNo information available for mother
\nOne brother at age 64 is alive with HTN and DM
\nHas four daughters from previous marriage (all alive and healthy) and one son who committed suicide
\nSH<\/p>\n
Divorced and remarried, lives with husband
\nRetired university professor and surgical pathologist; still writes textbooks
\nSmoker, quit 5 years ago, previously 2 ppd
\nOccasional glass of wine with dinner
\nNo history of illicit drug use
\nROS<\/p>\n
States that overall she is \u201cdoing okay and holding her own, albeit not the best\u201d
\nUnremarkable, except for vision problems at this time
\nMeds<\/p>\n
Diltiazem CD 120 mg po BID
\nAtorvastatin 20 mg po QD
\nFurosemide 160 mg po QD
\nEC ASA 325 mg po QD
\nProchlorperazine 10 mg po TID PRN
\nNitroglycerin 0.4 mg SL PRN
\nCalcium acetate 667 mg 2 gel caps po PC
\nNitroglycerin transdermal patch 0.4 mg QD at night with removal in AM
\nAcetaminophen 650 mg po QID PRN
\nClonidine 0.2 mg po TID but not before dialysis
\nNabumetone 750 mg 2 tabs Q HS
\nPrednisone 5 mg \u00bd tab po Q AM
\nMethotrexate 2.5 mg 6 tabs po once a week
\nFolic acid 1 mg po QD
\nAllergies<\/p>\n
IV dye \u2192 worsened renal function (4 years ago)
\nCodeine intolerance \u2192 nausea and vomiting
\nPatient Case Questions<\/p>\n
Identify seven contributing factors that have increased susceptibility to cataract formation in this patient.
\nWhich of the seven risk factors that you listed above is the single greatest risk factor for cataracts?
\nMatch the pharmacotherapeutic agents in the left-hand column directly below with the medical conditions in the right-hand column.
\na. Diltiazem, furosemide, clonidine \u2192 coronary artery disease
\nb. ASA, nitroglycerin \u2192 rheumatoid arthritis
\nc. Nabumetone, prednisone, methotrexate \u2192 hyperlipidemia, folic acid
\nd. Atorvastatin \u2192 hypertension
\nWhy is the patient taking folic acid?
\nPE and Lab Tests<\/p>\n
Snellen Visual Acuity Examination
\nRight eye: 20\/200
\nLeft eye: 20\/60
\nSwinging Flashlight Test
\nPositive each eye
\nSlit-Lamp Examination
\nLid margins were without inflammation, each eye
\nCornea clear and smooth, each eye
\nLenses: opacity noted in center of right lens; opacity noted in back of left lens under the capsule
\nIris round and without neovascularization or abnormality, each eye
\nVitreous examination: clear, each eye
\nColor vision: WNL, each eye
\nLens position: positive for subluxation, each eye
\nGeneral<\/p>\n
Obese white woman who appears her stated age and is in NAD
\nVital Signs<\/p>\n
BP 170\/105 right arm, sitting
\nBP 165\/103 left arm, sitting
\nP 86
\nT 98.4\u00b0F
\nWT 194 lbs
\nSkin<\/p>\n
Warm and dry
\nGood turgor
\nHEENT<\/p>\n
Eyes are negative for pain and redness
\nPERRLA
\nEOMI
\nArteriolar narrowing on funduscopic exam
\nNegative for hemorrhages, exudates, or papilledema
\nOropharynx clear
\nOral mucosa pink and moist
\nChest<\/p>\n
CTA bilaterally
\nCardiac<\/p>\n
RRR
\nS1 and S2 normal
\nNegative for S3 and S4
\nNegative for murmurs and rubs
\nAbdomen<\/p>\n
Obese, soft, and non-tender with no guarding
\nBowel sounds present
\nNegative for HSM, masses, and bruits
\nGenit\/Rect<\/p>\n
Stool heme negative
\nMS\/Extremities<\/p>\n
Negative for CCE
\nCapillary refill <2 sec\nAge-appropriate strength and ROM\nNeuro\n\nA & O \u00d73\nModerately subnormal sensation in lower legs\nCNs II\u2013XII intact\nLaboratory Blood Test Results\n\nNa: 135 meq\/L\nK: 3.8 meq\/L\nCl: 102 meq\/L\nHCO3: 23 meq\/L\nBUN: 72 mg\/dL\nCr: 9.1 mg\/dL\nGlu, fasting: 109 mg\/dL\nCa: 8.7 mg\/dL\nHb: 9.1 g\/dL\nHct: 27%\nMg: 2.4 mg\/dL\nPhos: 2.6 mg\/dL\nPlt: 229 \u00d7 10\u00b3\/mm\u00b3\nAlb: 3.4 g\/dL\nPatient Case Questions\n5. Identify four abnormal laboratory blood test results that are consistent with a diagnosis of chronic renal failure.\n6. Account for the \u201cmoderately subnormal sensation in the lower legs.\u201d\n7. Is the cataract in the left eye more likely to be subcapsular, nuclear, or cortical?\n8. Is the cataract in the right eye more likely to be subcapsular, nuclear, or cortical?\n9. Is the cataract in the left eye more likely to be mature, immature, or incipient?\n10. Is the cataract in the right eye more likely to be mature, immature, or incipient?\n11. What probably caused the \u201carteriolar narrowing\u201d that was observed with funduscopy?\n12. Is hypertension in this patient well regulated?\n<\/p>\n","protected":false},"excerpt":{"rendered":"
Cataract Formation and Associated Risk Factors in a 71-Year-Old Patient. Cataracts are a common ocular condition characterized by the clouding of the lens, leading to impaired vision. This…<\/p>\n","protected":false},"author":4,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[798,774,2117,625,1891,1647],"tags":[2623,2621,2619,2622,2620],"class_list":["post-10114","post","type-post","status-publish","format-standard","hentry","category-advanced-pathophysiology","category-assignment-pathophysiology-case-study-homework-help","category-nursing-case-study-assignment-help","category-pathophysiology","category-psychopathology-paper-writing-help","category-write-my-pathophysiology-assignment","tag-cataract-formation-and-associated-risk-factors-in-a-71-year-old-patient","tag-cataracts","tag-chronic-renal-failure","tag-diabetes-mellitus","tag-hypertension"],"_links":{"self":[{"href":"https:\/\/www.homeworkacetutors.com\/nursing\/wp-json\/wp\/v2\/posts\/10114","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.homeworkacetutors.com\/nursing\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.homeworkacetutors.com\/nursing\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.homeworkacetutors.com\/nursing\/wp-json\/wp\/v2\/users\/4"}],"replies":[{"embeddable":true,"href":"https:\/\/www.homeworkacetutors.com\/nursing\/wp-json\/wp\/v2\/comments?post=10114"}],"version-history":[{"count":1,"href":"https:\/\/www.homeworkacetutors.com\/nursing\/wp-json\/wp\/v2\/posts\/10114\/revisions"}],"predecessor-version":[{"id":10115,"href":"https:\/\/www.homeworkacetutors.com\/nursing\/wp-json\/wp\/v2\/posts\/10114\/revisions\/10115"}],"wp:attachment":[{"href":"https:\/\/www.homeworkacetutors.com\/nursing\/wp-json\/wp\/v2\/media?parent=10114"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.homeworkacetutors.com\/nursing\/wp-json\/wp\/v2\/categories?post=10114"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.homeworkacetutors.com\/nursing\/wp-json\/wp\/v2\/tags?post=10114"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}