Diagnostic Assessment — Eye - Conjunctivitis (follicular)
Example 1 of 1 · fictitious patient (Veteran D)
Diagnostic Assessment
EYE - CONJUNCTIVITIS (FOLLICULAR)
SOP for Eye Conjunctivitis: (Reasonable Hypothesis) Statement of Principles No. 76 of 2020; (Balance of Probabilities) Statement of Principles No. 77 of 2020
ADF History
The veteran, occupation Airfield Defence Guard (ADG), enlisted 29 July 1993, currently serving.
Occupational History
As an Airfield Defence Guard in the Royal Australian Air Force, the veteran would have been exposed to a range of occupational hazards inherent to the role. This occupation is primarily focused on providing security and ground defence for RAAF assets, personnel, and installations, both within Australia and on deployment. The duties are physically demanding and can involve prolonged periods in various environmental conditions. Occupational exposures include physical stressors such as manual handling of heavy equipment, weapons, and field gear. Significant exposure to noise is common, particularly from weapons firing, aircraft operations, and vehicle movements. Environmental exposures include prolonged exposure to sunlight (UV radiation), heat, cold, dust, and potentially other airborne particulates. Chemical exposures could include fuels, oils, solvents, and cleaning agents. Psychological stressors are inherent in security and defence roles. The Post Deployment Health Screen for an operational deployment indicates potential daily exposure to dusts, fibres, diesel exhaust fumes, fuels, and oil fire smoke above normal duty levels.
History
The veteran an Airfield Defence Guard in the RAAF, developed follicular conjunctivitis in November 2014. The condition initially presented as eye irritation starting around Christmas 2016, first affecting the right eye then spreading to the left eye, with symptoms including eye stickiness and irritation.
Timeline
- 11 Sep 2012. The veteran presented to the base Health Centre with eye irritation since Christmas, initially right eye then spread to left, with stickiness. Had used Chlorsig with no response. Vision R 6/5, L 6/5. Diagnosed with irritation of eyes, changed to Soframycin eye drops.
- 13 Sep 2012. Reviewed by the treating doctor, Ophthalmologist, for urgent referral. Diagnosed with slight blepharitis in all 4 lids and follicular conjunctivitis. Prescribed FML and Tobramycin ointment.
- 24 Sep 2012. Follow-up with the treating doctor. Conjunctivitis settled with FML and Tobramycin. Still some chronic blepharitis noted. Advised long-term lash scrubbing.
- 08 Jan 2010. Prior eye issue: Presented to the base health centre with an irritable left eye since the previous afternoon, possibly after getting something in it while cleaning. Symptoms included watery, sore eye. Examination found vision R 6/6, L 6/6. No foreign body or corneal ulceration seen with fluorescein. Diagnosed as "clinically probable f/body now dislodged." Treated with an eye pad and Chlorsig drops.
Symptoms
At the time of onset in October 2016/November 2014, the veteran experienced bilateral eye irritation that began in the right eye and subsequently spread to the left eye. His symptoms included stickiness of the eyes and general irritation. Prior treatment with Chlorsig eye drops had been ineffective in resolving these symptoms. On examination, his visual acuity remained excellent at R 6/5, L 6/5.
After the diagnosis was established, the veteran was prescribed a combination of FML (fluorometholone - a corticosteroid) and Tobramycin (an antibiotic) ointment. By his follow-up appointment on 24 September 2012, the conjunctivitis had resolved with this treatment, though some residual chronic blepharitis remained, for which long-term lash scrubbing was recommended.
Imaging
No specific eye imaging studies are recorded in relation to the conjunctivitis. The diagnosis was made through clinical examination by an ophthalmologist.
1. What is the formal diagnosis of the condition claimed above? The formal diagnosis is Follicular Conjunctivitis, ICD-10 code H10.419.
Conjunctivitis is inflammation of the conjunctiva, the thin transparent layer of tissue that covers the white part of the eye and lines the inner surface of the eyelids. Follicular conjunctivitis is a specific type characterized by the presence of small, raised follicles on the conjunctival surface, particularly on the palpebral conjunctiva (lining the eyelids). These follicles represent accumulations of lymphoid tissue that develop in response to certain antigenic stimuli.
Common causes of follicular conjunctivitis include viral infections (particularly adenovirus), chlamydial infections, and toxic reactions to topical medications. The condition may be acute or chronic and can affect one or both eyes. In the veteran case, it began unilaterally and progressed to bilateral involvement, which is consistent with an infectious etiology.
Follicular conjunctivitis typically presents with redness, irritation, and discharge. The presence of follicles distinguishes it from other forms of conjunctivitis such as papillary conjunctivitis or bacterial conjunctivitis. The diagnosis is primarily clinical, based on the characteristic appearance of follicles on examination.
In the veteran case, the conjunctivitis was associated with blepharitis (inflammation of the eyelid margins), which is a common co-existing condition that can contribute to or exacerbate conjunctival inflammation.
2. For each diagnosis identified, please also provide the following dates: When did the veteran first experience symptoms attributable to this condition? The veteran first experienced symptoms attributable to follicular conjunctivitis around Christmas 2016 (approximately late October 2014), when he developed irritation in his right eye that subsequently spread to his left eye.
When did the veteran first present to a health / medical provider for this condition? The veteran first presented to a health provider for this condition on 11 September 2012 at the base Health Centre, where he was initially diagnosed with eye irritation and prescribed Soframycin eye drops.
When was the condition confirmed / formally diagnosed? The condition was formally diagnosed as follicular conjunctivitis on 13 September 2012 by the treating doctor, Ophthalmologist, during an urgent referral appointment.
When did the veteran first present to you (or your practice) for this condition? 08 November 2017
3. How was this diagnosis confirmed? i.e. what were the key symptoms and signs, investigation results, specialist opinions? Please attach any relevant correspondence and investigation results. The diagnosis of follicular conjunctivitis was confirmed through clinical examination by a specialist ophthalmologist, the treating doctor, on 13 September 2012. The key symptoms and signs that supported the diagnosis included:
- A history of bilateral eye irritation that began in the right eye and spread to the left eye
- Eye stickiness
- Poor response to initial treatment with Chlorsig (chloramphenicol) eye drops
- The clinical observation of follicular changes in the conjunctiva
- Co-existing blepharitis in all four eyelids
No specific laboratory investigations were documented for this condition, which is consistent with standard practice as conjunctivitis is typically diagnosed clinically. The ophthalmologist's expert opinion confirmed the diagnosis, and the response to appropriate treatment (FML and Tobramycin) further supported the diagnosis, with resolution of the conjunctivitis noted at the follow-up appointment on 24 September 2012.
The veteran's excellent visual acuity (R 6/5, L 6/5) despite the conjunctivitis indicated that the condition had not affected his vision, which is typical for uncomplicated conjunctivitis.
4. What do you consider to be the cause(s) of the condition in this veteran? Give consideration to constitutional and common risk factors, pre-existing injuries or diseases, and occupational or lifestyle risks, as well as direct causative mechanisms.
having blepharitis of the affected eye at the time of the clinical onset of conjunctivitis - MET
- The veteran was diagnosed with slight blepharitis in all 4 lids at the same time as the follicular conjunctivitis diagnosis on 13 September 2012. Blepharitis is a known risk factor for conjunctivitis, as inflammation of the eyelid margins can easily spread to the conjunctiva or predispose to conjunctival inflammation.
having an infection of the conjunctiva of the affected eye at the time of the clinical onset of conjunctivitis - NOT MET
- While the follicular appearance suggests a possible infectious etiology, no specific pathogen was identified in the medical records.
having ocular or periocular exposure to an allergen within the 24 hours before the clinical onset of conjunctivitis - POSSIBLY MET
- The bilateral nature of the condition that progressed from one eye to the other could be consistent with an allergic response, although no specific allergen was identified in the records.
having topical medication applied to the affected eye within the 48 hours before the clinical onset of conjunctivitis - POSSIBLY MET
- The records indicate that the veteran had used Chlorsig prior to presentation, which could potentially have contributed to or exacerbated the condition if there was an adverse reaction or toxicity to the medication.
having ocular or periocular exposure to an irritant substance within the 24 hours before the clinical onset of conjunctivitis - POSSIBLY MET
- Given the veteran occupational exposures as an Airfield Defence Guard to various environmental irritants such as dust, fumes, and chemicals, exposure to irritant substances cannot be ruled out.
having a foreign body in contact with the affected conjunctiva within the 24 hours before the clinical onset of conjunctivitis - NOT MET
- No foreign body was identified at the time of diagnosis.
having an injury to the conjunctiva of the affected eye within the 24 hours before the clinical onset of conjunctivitis - NOT MET
- No conjunctival injury was documented before the onset of symptoms.
inability to obtain appropriate clinical management for conjunctivitis - NOT MET
- The record shows that the veteran received prompt and appropriate management with specialist referral and effective treatment.
Sequelae
There is no evidence that the follicular conjunctivitis was a sequela of another known condition. However, the concurrent blepharitis may have predisposed to or contributed to the development of conjunctivitis.
Unintended Consequence
There is no evidence that the conjunctivitis was an unintended consequence of medical management.
Inability to Attain Appropriate Medical Management
The Full Federal Court in Brew v Repatriation Commission (14 May 1993) (see the judgement of Merkel J) enlarges on the meaning to be given to "inability" as the lack of the ability to get the treatment in both an objective and subjective sense. In this case, there is no evidence of inability to attain appropriate medical management. The veteran sought medical attention in a timely manner after symptoms developed, was referred promptly to an ophthalmologist, received appropriate diagnosis and treatment, and had documented resolution of the conjunctivitis with the prescribed treatment.
The % contribution of the causes is 100% and significant
5. Please provide a Health Summary and a medication / prescribing history. -see attached report
